"Symbol","Scientific Name with Author","GSAT Common Name"
"2BARE","","bare ground"
"2FA","","other annual forbs"
"2FB","","other B forbs"
"2FD","","other dicot forbs"
"2FDA","","other annual dicot forbs"
"2FDB","","other B dicot forb"
"2FDP","","other perennial dicot forbs"
"2FERN","","other ferns or fern allies"
"2FF","","mushroom"
"2FM","","other monocot forbs"
"2FMA","","other annual monocot forbs"
"2FMB","","other B monocot forbs"
"2FMP","","other perennial monocot forbs"
"2FORB","","other forbs"
"2FP","","other perennial forbs"
"2FSP","","other perennial succulent forbs"
"2FUNGI","","fungus"
"2GA","","other annual grasses"
"2GB","","other B grasses"
"2GL","","other grasslikes"
"2GLA","","other annual grasslikes"
"2GLB","","other B grasslikes"
"2GLP","","other perennial grasslikes"
"2GP","","other perennial grasses"
"2GRAM","","other graminoids (grass or grasslike)"
"2LICHN","","lichen"
"2MOSS","","other mosses"
"2PLANT","","other plants"
"2SB","","other broadleaf shrubs"
"2SD","","other deciduous shrubs"
"2SE","","other evergreen shrubs"
"2SHRUB","","other shrubs"
"2SN","","other coniferous shrubs"
"2SSB","","other broadleaf subshrubs"
"2SSD","","other deciduous subshrubs"
"2SSE","","other evergreen subshrubs"
"2SSEB","","other broadleaf evergreen subshrubs"
"2SSN","","other coniferous subshrubs"
"2SUBS","","other subshrubs"
"2TB","","other broadleaf trees"
"2TD","","other deciduous trees"
"2TE","","other evergreen trees"
"2TEB","","other broadleaf evergreen trees"
"2TN","","other coniferous trees"
"2TREE","","other trees"
"2VH","","other herbaceous vines"
"2VHA","","other annual herbaceous vines"
"2VHD","","other dicot herbaceous vines"
"ABAB","Abutilon abutiloides (Jacq.) Garcke ex Hochr.","shrubby Indianmallow"
"ABAN","Abronia angustifolia Greene","purple sand-verbena"
"ABCO","Abies concolor (Gord. & Glend.) Lindl. ex Hildebr.","white fir"
"ABIES","Abies Mill.","Abies"
"ABIN","Abutilon incanum (Link) Sweet","orange Indianmallow"
"ABINP","Abutilon incanum (Link) Sweet ssp. pringlei (Hochr.) Felger & Lowe","Pringle Indianmallow"
"ABLA","Abies lasiocarpa (Hook.) Nutt.","subalpine fir"
"ABNA","Abronia nana S. Watson","dwarf sand-verbena"
"ABPA","Abutilon palmeri A. Gray","Palmer Indianmallow"
"ABPA3","Abutilon parvulum A. Gray","dwarf Indianmallow"
"ABRON","Abronia Juss.","Abronia"
"ABTH2","Abutilon thurberi A. Gray","Thurber Indianmallow"
"ABUTI","Abutilon Mill.","Abutilon"
"ABVI","Abronia villosa S. Watson","desert sand-verbena"
"ACACI","Acacia Mill.","Acacia"
"ACALY","Acalypha L.","Acalypha"
"ACAMP","Acamptopappus (A. Gray) A. Gray","Acamptopappus"
"ACAN","Acacia angustissima (Mill.) Kuntze","prairie acacia"
"ACCA3","Acalypha californica Benth.","Pringle threeseed mercury"
"ACCO2","Acacia constricta Benth.","whitethorn acacia"
"ACCO4","Aconitum columbianum Nutt.","Columbian monkshood"
"ACER","Acer L.","Acer"
"ACFA","Acacia farnesiana (L.) Willd.","sweet acacia"
"ACGL","Acer glabrum Torr.","Rocky Mountain maple"
"ACGR","Acacia greggii A. Gray","catclaw acacia"
"ACGR3","Acer grandidentatum Nutt.","bigtooth maple"
"ACHIL","Achillea L.","Achillea"
"ACHNA","Achnatherum P. Beauv.","Achnatherum"
"ACHY","Achnatherum hymenoides (Roem. & Schult.) Barkworth","Indian ricegrass"
"ACIN2","Aconitum infectum Greene","Arizona monkshood"
"ACME7","Acalypha mexicana Müll. Arg.","Mexican copperleaf"
"ACMI","Acacia millefolia S. Watson","Santa Rita acacia"
"ACMI2","Achillea millefolium L.","common yarrow"
"ACNA2","Acourtia nana (A. Gray) Reveal & King","desert-holly"
"ACNE","Acalypha neomexicana Müll. Arg.","New Mexico copperleaf"
"ACNE2","Acer negundo L.","boxelder"
"ACONI","Aconitum L.","Aconitum"
"ACOUR","Acourtia D. Don","Acourtia"
"ACPA13","Achnatherum parishii (Vasey) Barkworth","Parish needlegrass"
"ACPE13","Achnatherum perplexum Hoge & Barkworth","New Mexico needlegrass"
"ACRE3","Acroptilon repens (L.) DC.","Russian knapweed"
"ACRO7","Achnatherum robustum (Vasey) Barkworth","sleepygrass"
"ACROP","Acroptilon Cass.","Acroptilon"
"ACSP","Acamptopappus sphaerocephalus (Harv. & A. Gray ex A. Gray) A. Gray","rayless goldenhead"
"ACSP12","Achnatherum speciosum (Trin. & Rupr.) Barkworth","desert needlegrass"
"ACWR5","Acourtia wrightii (A. Gray) Reveal & King","pink perezia"
"ADCO2","Adenophyllum cooperi (A. Gray) Strother","Cooper dogweed"
"ADENO5","Adenophyllum Pers.","Adenophyllum"
"ADPO","Adenophyllum porophylloides (A. Gray) Strother","San Felipe dogweed"
"AECY","Aegilops cylindrica Host","jointed goatgrass"
"AEGIL","Aegilops L.","Aegilops"
"AGAM","Agave americana L.","American agave"
"AGAR3","Agave arizonica Gentry & J.Z. Weber","Arizona agave"
"AGAST","Agastache Clayton ex Gronov.","Agastache"
"AGAU2","Agoseris aurantiaca (Hook.) Greene","orange mountain-dandelion"
"AGAVE","Agave L.","Agave"
"AGBR","Agastache breviflora (A. Gray) Epling","Trans-Pecos giant hyssop"
"AGDE","Agave deserti Engelm.","desert agave"
"AGDE2","Agropyron desertorum (Fisch. ex Link) Schult.","desert wheatgrass"
"AGERA2","Ageratina Spach","Ageratina"
"AGEX","Agrostis exarata Trin.","spike bentgrass"
"AGGI2","Agrostis gigantea Roth","water bentgrass"
"AGGL","Agoseris glauca (Pursh) Raf.","pale mountain-dandelion"
"AGHE5","Ageratina herbacea (A. Gray) King & H. Rob.","fragrant snakeroot"
"AGID","Agrostis idahoensis Nash","Idaho bentgrass"
"AGMI","Agastache micrantha (A. Gray) Woot. & Standl.","white giant hyssop"
"AGOSE","Agoseris Raf.","Agoseris"
"AGPA","Agastache pallidiflora (A. Heller) Rydb.","Bill Williams giant hyssop"
"AGPA11","Agastache pallida (Lindl.) Cory","pale giant hyssop"
"AGPA3","Agave palmeri Engelm.","Palmer agave"
"AGPA4","Agave parryi Engelm.","Parry agave"
"AGPA5","Agave parviflora Torr.","smallflower agave"
"AGRIM","Agrimonia L.","Agrimonia"
"AGROP2","Agropyron Gaertn.","Agropyron"
"AGROS2","Agrostis L.","Agrostis"
"AGRU","Agastache rupestris (Greene) Standl.","threadleaf giant hyssop"
"AGSC3","Agave schottii Engelm.","Schott agave"
"AGSC5","Agrostis scabra Willd.","rough bentgrass"
"AGST","Agrimonia striata Michx.","roadside agrimony"
"AGTO","Agave toumeyana Trel. ex Standl.","Toumey agave"
"AGMC","Agave mckelveyana Gentry, nom. nud.","McKelvey agave"
"AGUT","Agave utahensis Engelm.","Utah agave"
"AGWR","Agastache wrightii (Greenm.) Woot. & Standl.","Sonoran giant hyssop"
"ALAE","Alopecurus aequalis Sobol.","shortawn foxtail"
"ALCA4","Alopecurus carolinianus Walter","Carolina foxtail"
"ALCE2","Allium cernuum Roth","New Mexico nodding onion"
"ALGE","Allium geyeri S. Watson","Geyer onion"
"ALGE2","Alopecurus geniculatus L.","water foxtail"
"ALGR","Alisma gramineum Lej.","narrowleaf water-plantain"
"ALGR2","Aloysia gratissima (Gillies & Hook.) Troncoso","bee blossom"
"ALHAG","Alhagi Gagnebin","Alhagi"
"ALIN","Allionia incarnata L.","trailing four o'clock"
"ALIN2","Alnus incana (L.) Moench","mountain alder"
"ALINT","Alnus incana (L.) Moench ssp. tenuifolia (Nutt.) Breitung","thinleaf mountain alder"
"ALISM","Alisma L.","Alisma"
"GILA2","Gilia latifolia S. Watson","broadleaf gilia"
"GILE3","Gilia leptomeria A. Gray","sand gilia"
"ALLEN","Allenrolfea Kuntze","Allenrolfea"
"ALLIO","Allionia L.","Allionia"
"ALLIU","Allium L.","Allium"
"ALMA12","Alhagi maurorum Medik.","camelthorn"
"ALMA4","Allium macropetalum Rydb.","largeflower onion"
"ALNUS","Alnus Mill.","Alnus"
"ALOB2","Alnus oblongifolia Torr.","Arizona alder"
"ALOC2","Allenrolfea occidentalis (S. Watson) Kuntze","iodinebush"
"ALOPE","Alopecurus L.","Alopecurus"
"ALOYS","Aloysia Juss.","Aloysia"
"ALSU","Alisma subcordatum Raf.","American water-plantain"
"GISU2","Gilia subacaulis Rydb.","pinyon gilia"
"GISU","Gilia subnuda Torr. ex A. Gray","coral gilia"
"ALTR7","Alisma triviale Pursh","northern water-plantain"
"ALWR","Aloysia wrightii (A. Gray) A. Heller","mintbush lippia"
"AMAL","Amaranthus albus L.","prostrate pigweed"
"AMAM2","Ambrosia ambrosioides (Cav.) Payne","canyon ragweed"
"AMAR2","Ambrosia artemisiifolia L.","common ragweed"
"AMARA","Amaranthus L.","Amaranthus"
"AMBL","Amaranthus blitoides S. Watson","mat pigweed"
"AMBRO","Ambrosia L.","Ambrosia"
"AMCA5","Amorpha californica Nutt.","California false indigobush"
"AMCO3","Ambrosia confertiflora DC.","slimleaf bursage"
"AMCR","Amaranthus crassipes Schltdl.","spreading pigweed"
"AMDE4","Ambrosia deltoidea (Torr.) Payne","triangle bursage"
"AMDU2","Ambrosia dumosa (A. Gray) Payne","white bursage"
"AMELA","Amelanchier Medik.","Amelanchier"
"AMFI","Amaranthus fimbriatus (Torr.) Benth. ex S. Watson","fringed pigweed"
"AMFR","Amorpha fruticosa L.","desert false indigobush"
"AMGO","Amoreuxia gonzalezii Sprague & Riley","Santa Rita throw-up weed"
"AMGR4","Amsonia grandiflora Alexander","Arizona bluestar"
"AMME","Amsinckia menziesii (Lehm.) A. Nelson & J.F. Macbr.","Menzies fiddleneck"
"AMORE","Amoreuxia Moc. & Sessé ex DC.","Amoreuxia"
"AMORP","Amorpha L.","Amorpha"
"AMPA","Amaranthus palmeri S. Watson","carelessweed"
"AMPA3","Amoreuxia palmatifida Moc. & Sessé ex DC.","throw-up weed"
"AMPA5","Amsonia palmeri A. Gray","Palmer bluestar"
"AMPS","Ambrosia psilostachya DC.","western ragweed"
"AMPU5","Amelanchier pumila (Torr. & A. Gray) Nutt. ex M. Roem.","dwarf serviceberry"
"AMSIN","Amsinckia Lehm.","Amsinckia"
"AMSON","Amsonia Walter","Amsonia"
"AMTE3","Amsinckia tessellata A. Gray","western fiddleneck"
"AMTO2","Amsonia tomentosa Torr. & Frém.","woolly bluestar"
"AMTR","Ambrosia trifida L.","giant ragweed"
"AMUT","Amelanchier utahensis Koehne","Utah serviceberry"
"ANAB","Anoda abutiloides A. Gray","Indian anoda"
"ANCA10","Anemopsis californica (Nutt.) Hook. & Arn.","yerba mansa"
"ANCR2","Anoda cristata (L.) Schltdl.","spurred anoda"
"ANCY","Anemone cylindrica A. Gray","candle anemone"
"ANDRO2","Andropogon L.","Andropogon"
"ANEMO","Anemone L.","Anemone"
"ANEMO3","Anemopsis Hook. & Arn.","Anemopsis"
"ANGE","Andropogon gerardii Vitman","big bluestem"
"ANGEL","Angelica L.","Angelica"
"ANHA","Andropogon hallii Hack.","sand bluestem"
"ANISA","Anisacanthus Nees","Anisacanthus"
"ANMU","Anemone multifida Poir.","red anemone"
"ANODA","Anoda Cav.","Anoda"
"ANPA4","Antennaria parvifolia Nutt.","small leaf pussytoes"
"ANPI2","Angelica pinnata S. Watson","wild celery"
"ANRO2","Antennaria rosea Greene","rosy pussytoes"
"ANRO3","Antennaria rosulata Rydb.","Kaibab pussytoes"
"ANTEN","Antennaria Gaertn.","Antennaria"
"ANTH2","Anisacanthus thurberi (Torr.) A. Gray","desert-honeysuckle"
"ANTU","Anemone tuberosa Rydb.","desert anemone"
"APAN2","Apocynum androsaemifolium L.","spreading dogbane"
"APCA","Apocynum cannabinum L.","Indianhemp dogbane"
"APGR2","Apium graveolens L.","wild celery"
"APIUM","Apium L.","Apium"
"APOCY","Apocynum L.","Apocynum"
"AQCH","Aquilegia chrysantha A. Gray","golden columbine"
"AQCA2","Aquilegia caerulea James, orth. var.","Colorado blue columbine"
"AQDE","Aquilegia desertorum (M.E. Jones) Cockerell ex A. Heller","desert columbine"
"AQEL","Aquilegia elegantula Greene","western red columbine"
"AQLO","Aquilegia longissima A. Gray","longspur columbine"
"AQTR","Aquilegia triternata Payson","red columbine"
"AQUIL","Aquilegia L.","Aquilegia"
"ARAD","Aristida adscensionis L.","sixweeks threeawn"
"ARAR2","Arbutus arizonica (A. Gray) Sarg.","Arizona madrone"
"ARAR4","Argemone arizonica G.B. Ownbey","Arizona pricklypoppy"
"ARBI3","Artemisia bigelovii A. Gray","Bigelow sagebrush"
"ARBUT","Arbutus L.","Arbutus"
"ARCA13","Artemisia cana Pursh","silver sagebrush"
"ARCA4","Arctomecon californica Torr. & Frém.","California bearpoppy"
"ARCAG","Aristida californica Thurb. ex S. Watson var. glabrata Vasey","Santa Rita threeawn"
"ARCEU","Arceuthobium M. Bieb.","Arceuthobium"
"ARCO6","Argemone corymbosa Greene","Mojave pricklypoppy"
"ARCTO","Arctomecon Torr. & Frém.","Arctomecon"
"ARCTO3","Arctostaphylos Adans.","Arctostaphylos"
"ARDI3","Arceuthobium divaricatum Engelm.","pinyon dwarf mistletoe"
"ARDI5","Aristida divaricata Humb. & Bonpl. ex Willd.","poverty threeawn"
"ARDO4","Arundo donax L.","giant reed"
"ARDR4","Artemisia dracunculus L.","tarragon"
"AREL3","Arrhenatherum elatius (L.) P. Beauv. ex J. Presl & C. Presl","tall oatgrass"
"ARENA","Arenaria L.","Arenaria"
"ARFE3","Arenaria fendleri A. Gray","Fendler sandwort"
"ARFI2","Artemisia filifolia Torr.","sand sagebrush"
"ARFR3","Artemisia franserioides Greene","ragweed sagewort"
"ARGEM","Argemone L.","Argemone"
"ARIST","Aristida L.","Aristida"
"ARLA4","Arenaria lanuginosa (Michx.) Rohrb.","spreading sandwort"
"ARLU","Artemisia ludoviciana Nutt.","Louisiana sagewort"
"ARMA3","Arenaria macradenia S. Watson","Mojave sandwort"
"ARMI8","Arceuthobium microcarpum (Engelm.) Hawksw. & Wiens","western spruce dwarf mistletoe"
"ARNO4","Artemisia nova A. Nelson","black sagebrush"
"ARPA6","Arctostaphylos patula Greene","greenleaf manzanita"
"ARPL3","Argemone pleiacantha Greene","bluestem pricklypoppy"
"ARPO2","Argemone polyanthemos (Fedde) G.B. Ownbey","crested pricklypoppy"
"ARPR","Arctostaphylos pringlei Parry","Pringle manzanita"
"ARPU5","Arctostaphylos pungens Kunth","pointleaf manzanita"
"ARPU9","Aristida purpurea Nutt.","purple threeawn"
"ARPUF","Aristida purpurea Nutt. var. fendleriana (Steud.) Vasey","Fendler threeawn"
"ARPUL","Aristida purpurea Nutt. var. longiseta (Steud.) Vasey","red threeawn"
"ARPUP5","Aristida purpurea Nutt. var. parishii (Hitchc.) Allred","Parish threeawn"
"ARPUP6","Aristida purpurea Nutt. var. purpurea","purple threeawn"
"ARPUP9","Aristida purpurea Nutt. var. perplexa Allred & Valdés-Reyna","purple threeawn"
"ARRHE","Arrhenatherum P. Beauv.","Arrhenatherum"
"ARTE3","Aristida ternipes Cav.","spidergrass"
"ARTEG","Aristida ternipes Cav. var. gentilis (Henr.) Allred","mesa threeawn"
"ARTEM","Artemisia L.","Artemisia"
"ARTET","Aristida ternipes Cav. var. ternipes","spidergrass"
"ARTR2","Artemisia tridentata Nutt.","big sagebrush"
"ARTRT","Artemisia tridentata Nutt. ssp. tridentata","basin big sagebrush"
"ARTRW8","Artemisia tridentata Nutt. ssp. wyomingensis Beetle & Young","Wyoming big sagebrush"
"ARUND4","Arundo L.","Arundo"
"ARVA","Arceuthobium vaginatum (Willd.) J. Presl","pineland dwarf mistletoe"
"ASAL6","Astragalus allochrous A. Gray","halfmoon milkvetch"
"ASAM5","Astragalus amphioxys A. Gray","crescent milkvetch"
"ASANT2","Asanthus King & H. Rob.","Asanthus"
"ASAR4","Astragalus argophyllus Nutt.","silverleaf milkvetch"
"ASAR6","Astragalus arizonicus A. Gray","Arizona milkvetch"
"ASAS","Asclepias asperula (Decne.) Woodson","spider milkweed"
"ASCLE","Asclepias L.","Asclepias"
"ASCO6","Astragalus coccineus Brandegee","scarlet milkvetch"
"ASDE3","Astragalus desperatus M.E. Jones","rimrock milkvetch"
"ASIN6","Astragalus insularis Kellogg","Cedros milkvetch"
"ASINH","Astragalus insularis Kellogg var. harwoodii Munz & McBurney","Harwood milkvetch"
"ASLA4","Asclepias latifolia (Torr.) Raf.","broadleaf milkweed"
"ASLE8","Astragalus lentiginosus Douglas ex Hook.","freckled milkvetch"
"ASLI6","Asclepias linaria Cav.","pineneedle milkweed"
"ASMO7","Astragalus mollissimus Torr.","woolly milkvetch"
"ASNO3","Astragalus nothoxys A. Gray","sheep milkvetch"
"ASNU4","Astragalus nuttallianus DC.","Nuttall milkvetch"
"ASOF","Asparagus officinalis L.","garden asparagus"
"ASPAR","Asparagus L.","Asparagus"
"ASSQ","Asanthus squamulosus (A. Gray) King & H. Rob.","Mule Mountain brickellbrush"
"ASSU","Asclepias subulata Decne.","rush milkweed"
"ASSU2","Asclepias subverticillata (A. Gray) Vail","horsetail milkweed"
"ASSU6","Astragalus subcinereus A. Gray","Silver milkvetch"
"ASTH","Astragalus thurberi A. Gray","Thurber milkvetch"
"ASTRA","Astragalus L.","Astralagus"
"ASTU","Asclepias tuberosa L.","butterfly milkweed"
"ASVE","Asclepias verticillata L.","whorled milkweed"
"ATAC","Atriplex acanthocarpa (Torr.) S. Watson","tubercled saltbush"
"ATACA","Atriplex acanthocarpa (Torr.) S. Watson ssp. acanthocarpa","tubercled saltbush"
"ATAR2","Atriplex argentea Nutt.","silverscale saltbush"
"ATAS2","Atriplex asterocarpa Stutz, G.L. Chu & S.C. Sand.","Chinle saltbush"
"ATCA2","Atriplex canescens (Pursh) Nutt.","fourwing saltbush"
"ATCAL4","Atriplex canescens (Pursh) Nutt. var. linearis (S. Watson) Munz","thinleaf fourwing saltbush"
"ATCO","Atriplex confertifolia (Torr. & Frém.) S. Watson","shadscale saltbush"
"ATCU","Atriplex cuneata A. Nelson","valley saltbush"
"ATEL","Atriplex elegans (Moq.) D. Dietr.","wheelscale saltbush"
"ATGR2","Atriplex griffithsii Standl.","Griffiths saltbush"
"ATHY","Atriplex hymenelytra (Torr.) S. Watson","desertholly saltbush"
"ATLE","Atriplex lentiformis (Torr.) S. Watson","quailbush"
"ATOB","Atriplex obovata Moq.","mound saltbush"
"ATPO","Atriplex polycarpa (Torr.) S. Watson","desert saltbush"
"ATRIP","Atriplex L.","Atriplex"
"ATTO","Atriplex torreyi (S. Watson) S. Watson","Torrey saltbush"
"ATWR","Atriplex wrightii S. Watson","Wright saltbush"
"AVENA","Avena L.","Avena"
"AVFA","Avena fatua L.","wild oats"
"AYAR","Ayenia ardua Cristobal","wingstem ayenia"
"AYCO","Ayenia compacta Rose","compact ayenia"
"AYENI","Ayenia L.","Ayenia"
"AYGL","Ayenia glabra S. Watson","smooth ayenia"
"AYMI","Ayenia microphylla A. Gray","shrubby ayenia"
"BAAB","Bahia absinthifolia Benth.","hairyseed bahia"
"KOAM","Kochia americana S. Watson","American kochia"
"BACCH","Baccharis L.","Baccharis"
"BAHIA","Bahia Lag.","Bahia"
"BAHO","Balsamorhiza hookeri (Hook.) Nutt.","Hooker balsamroot"
"BAHY","Bassia hyssopifolia (Pall.) Kuntz","smotherweed"
"BAILE","Baileya Harv. & A. Gray ex A. Gray","Baileya"
"BALSA","Balsamorhiza Nutt.","Balsamorhiza"
"BAMU","Baileya multiradiata Harv. & A. Gray ex A. Gray","desert marigold"
"KOPR80","Kochia prostrata (L.) Schrad.","prostrate kochia"
"BAPT","Baccharis pteronioides DC.","yerba de pasmo baccharis"
"BASA2","Baccharis sarothroides A. Gray","desert broom baccharis"
"BASA3","Balsamorhiza sagittata (Pursh) Nutt.","arrowleaf balsamroot"
"BASA4","Baccharis salicifolia (Ruiz & Pav.) Pers.","seepwillow baccharis"
"KOSC","Kochia scoparia (L.) Schrad.","Mexican fireweed kochia"
"BASSI","Bassia All.","Bassia"
"KOCHI","Kochia Roth","Kochia"
"BEBBI","Bebbia (Benth.) Greene","Bebbia"
"BEER","Berula erecta (Huds.) Coville","cutleaf waterparsnip"
"BEHA2","Berberis harrisoniana Kearney & Peebles","red barberry"
"BEJU","Bebbia juncea (Benth.) Greene","sweetbush bebbia"
"BEOC2","Betula occidentalis Hook.","water birch"
"BERBE","Berberis L.","Berberis"
"BERUL","Berula Besser ex W.D.J. Koch","Berula"
"BETUL","Betula L.","Betula"
"BEWI","Berberis wilcoxii Kearney","Wilcox hollygrape"
"BIAU","Bidens aurea (Aiton) Sherff","Arizona beggartick"
"BIBI","Bidens bigelovii A. Gray","stickseed beggartick"
"BIBI7","Bidens bipinnata L.","Spanish needles beggartick"
"BIDEN","Bidens L.","Bidens"
"BIFR","Bidens frondosa L.","devil's beggartick"
"BILA","Bidens laevis (L.) Britton, Sterns & Poggenb.","smooth beggartick"
"BIPI","Bidens pilosa L.","hairy beggartick"
"BITE","Bidens tenuisecta A. Gray","slimlobe beggartick"
"BLEPH4","Blepharoneuron Nash","Blepharoneuron"
"BLTR","Blepharoneuron tricholepis (Torr.) Nash","pine dropseed"
"BOAR","Bouteloua aristidoides (Kunth) Griseb.","sixweeks needle grama"
"BOBA2","Bouteloua barbata Lag.","sixweeks grama"
"BOBA3","Bothriochloa barbinodis (Lag.) Herter","cane beardgrass"
"BOCH","Bouteloua chondrosioides (Kunth) Benth. ex S. Watson","sprucetop grama"
"BOCO","Boerhavia coccinea Mill.","scarlet spiderling"
"BOCO2","Boerhavia coulteri (Hook. f.) S. Watson","Coulter spiderling"
"BOCU","Bouteloua curtipendula (Michx.) Torr.","sideoats grama"
"BUDA","Buchloe dactyloides (Nutt.) Engelm.","buffalograss"
"BOEL","Bouteloua eludens Griffiths","Santa Rita grama"
"BOER","Boerhavia erecta L.","erect spiderling"
"BOER4","Bouteloua eriopoda (Torr.) Torr.","black grama"
"BOERH2","Boerhavia L.","Boerhavia"
"BOGR2","Bouteloua gracilis (Willd. ex Kunth) Lag. ex Griffiths","blue grama"
"BOHI2","Bouteloua hirsuta Lag.","hairy grama"
"BOIN","Boerhavia intermedia M.E. Jones","fivewing spiderling"
"BOIN3","Bowlesia incana Ruiz & Pav.","hairy bowlesia"
"BOIS","Bothriochloa ischaemum (L.) Keng","yellow bluestem"
"BOISS","Bothriochloa ischaemum (L.) Keng var. songarica (Rupr. ex Fisch. & C.A. Mey.) Celarier & Harlan","yellow bluestem"
"BOLA2","Bothriochloa laguroides (DC.) Herter","silver beardgrass"
"BORE2","Bouteloua repens (Kunth) Scribn. & Merr.","slender grama"
"BORO2","Bouteloua rothrockii Vasey","Rothrock grama"
"BOSP","Boerhavia spicata Choisy","creeping spiderling"
"BOTE2","Bouvardia ternifolia (Cav.) Schltdl.","scarlet bouvardia"
"BOTHR","Bothriochloa Kuntze","Bothriochloa"
"BOTR2","Bouteloua trifida Thurb.","red grama"
"BOUTE","Bouteloua Lag.","Bouteloua"
"BOUVA","Bouvardia Salisb.","Bouvardia"
"BOWLE","Bowlesia Ruiz & Pav.","Bowlesia"
"BRAR4","Bromus arizonicus (Shear) Stebbins","Arizona brome"
"BRAR5","Bromus arvensis L.","field brome"
"BRJA","Bromus japonicus Thunb.","Japanese chess"
"BRASS2","Brassica L.","Brassica"
"BRCA3","Brickellia californica (Torr. & A. Gray) A. Gray","California brickellbush"
"BRCA6","Bromus catharticus Vahl","rescue brome"
"BRCI2","Bromus ciliatus L.","fringed brome"
"BRCO","Brickellia coulteri A. Gray","Coulter brickellbush"
"BRDE3","Brickellia desertorum Coville","desert brickellbush"
"BRDI3","Bromus diandrus Roth","ripgut brome"
"BRFL","Brickellia floribunda A. Gray","bigleaf brickellbush"
"BRFR","Brickellia frutescens A. Gray","shrubby brickellbush"
"BRFR2","Bromus frondosus (Shear) Woot. & Standl.","weeping brome"
"BRGR","Brickellia grandiflora (Hook.) Nutt.","tasselflower brickellbush"
"BRHO2","Bromus hordeaceus L.","soft brome"
"BRICK","Brickellia Elliot","Brickellia"
"BRIN","Brickellia incana A. Gray","white brickellbush"
"BRIN2","Bromus inermis Leyss.","smooth brome"
"BRJU","Brassica juncea (L.) Czern.","Chinese mustard"
"BRMA4","Bromus marginatus Nees ex Steud.","mountain brome"
"BRNI","Brassica nigra (L.) W.D.J. Koch","black mustard"
"BROMU","Bromus L.","Bromus"
"BRPO2","Bromus porteri (J.M. Coult.) Nash","nodding brome"
"BRRA","Brassica rapa L.","yellow field mustard"
"BRRAR","Brassica rapa L. var. rapa","yellow field mustard"
"BRRU2","Bromus rubens L.","red brome"
"BRSE","Bromus secalinus L.","chess brome"
"BRTE","Bromus tectorum L.","cheatgrass"
"BRTO","Brassica tournefortii Gouan","Asian mustard"
"BUDDL2","Buddleja L.","Buddleja"
"BUFA","Bursera fagaroides (Kunth) Engl.","copal"
"BUMI","Bursera microphylla A. Gray","elephant tree"
"BURSE","Bursera Jacq. ex L.","Bursera"
"BUSE","Buddleja sessiliflora Kunth","Rio Grande butterflybush"
"BUUT","Buddleja utahensis Coville","Utah butterflybush"
"CAAG","Carex agrostoides Mack.","grassleaf sedge"
"CAAN4","Capsicum annuum L.","cayenne pepper"
"CAAP4","Castilleja applegatei Fernald","wavyleaf Indian paintbrush"
"CAAR7","Carlowrightia arizonica A. Gray","Arizona carlowrightia"
"CAAT25","Castilleja attenuata (A. Gray) T.I. Chuang & Heckard","attenuate Indian paintbrush"
"CAAU3","Carex aurea Nutt.","golden sedge"
"CABE3","Carex bella L.H. Bailey","showy sedge"
"CABI8","Catalpa bignonioides Walter","southern catalpa"
"CABO7","Camissonia boothii (Douglas ex Lehm.) P.H. Raven","woody bottlewasher suncup"
"CABR23","Camissonia brevipes (A. Gray) P.H. Raven","golden suncup"
"CABU2","Capsella bursa-pastoris (L.) Medik.","shepherd's purse"
"CACA11","Carex canescens L.","silvery sedge"
"CACA32","Camissonia californica (Nutt. ex Torr. & A. Gray) P.H. Raven","California suncup"
"CACA4","Calamagrostis canadensis (Michx.) P. Beauv.","bluejoint reedgrass"
"CADO2","Carex douglasii Boott","Douglas sedge"
"CAEM4","Castela emoryi (A. Gray) Moran & Felger","crucifixion thorn"
"CAER","Calliandra eriophylla Benth.","false mesquite"
"CAER2","Cathestecum erectum Vasey & Hack.","false grama"
"CAESA","Caesalpinia L.","Caesalpinia"
"CAEX14","Castilleja exserta (A. Heller) T.I. Chuang & Heckard","owlclover Indian paintbrush"
"CAGI","Caesalpinia gilliesii (Wall. ex Hook.) Wall. ex D. Dietr.","yellow bird of paradise"
"CAGI7","Carnegia gigantea (Engelm.) Britton & Rose, orth. var.","saguaro"
"CAGI3","Calamovilfa gigantea (Nutt.) Scribn. & Merr.","giant sandreed"
"CAHA14","Calylophus hartwegii (Benth.) P.H. Raven","Hartweg sundrops"
"CAHO3","Canotia holacantha Torr.","Canotia"
"CAHU","Calliandra humilis Benth.","dwarf false mesquite"
"CAIN14","Castilleja integra A. Gray","grayleaf Indian paintbrush"
"CAKE","Calochortus kennedyi Porter","desert mariposa lily"
"CALA24","Castilleja lanata A. Gray","woolly Indian paintbrush"
"CALAM","Calamagrostis Adans.","Calamagrostis"
"CALAM2","Calamovilfa (A. Gray) Hack. ex Scribn. & Southworth","Calamovilfa"
"CALE8","Carex lenticularis Michx.","lakeshore sedge"
"CALI2","Carlowrightia linearifolia (Torr.) A. Gray","narrowleaf carlowrightia"
"CALI5","Castilleja lineata Greene","marshmeadow Indian paintbrush"
"CALLI","Calliandra Benth.","Calliandra"
"CALOC","Calochortus Pursh","Calochortus"
"CALYC4","Calycoseris A. Gray","Calycoseris"
"CALYL","Calylophus Spach","Calylophus"
"CAMI12","Castilleja miniata Douglas ex Hook.","giant red Indian paintbrush"
"CAMI13","Castilleja minor (A. Gray) A. Gray","alkali Indian paintbrush"
"CAMI7","Carex microptera Mack.","smallwing sedge"
"CAMIS","Camissonia Link","Camissonia"
"CANOT","Canotia Torr.","Canotia"
"CANU3","Calochortus nuttallii Torr. & A. Gray","sego lily"
"CANU4","Carduus nutans L.","musk thistle"
"CAPA7","Calycoseris parryi A. Gray","yellow tackstem"
"CAPR5","Carex praegracilis W. Boott","clustered field sedge"
"CAPSE","Capsella Medik.","Capsella"
"CAPSI","Capsicum L.","Capsicum"
"CARDU","Carduus L.","Carduus"
"CAREX","Carex L.","Carex"
"CARLO","Carlowrightia A. Gray","Carlowrightia"
"CARNE","Carnegia Britton & Rose, orth. var.","Carnegia"
"CASC","Calamagrostis scopulorum M.E. Jones","ditch reedgrass"
"CASC12","Carex scopulorum T. Holm","mountain sedge"
"CAST36","Calamagrostis stricta (Timm) Koeler","slimstem reedgrass"
"CASTE2","Castela Turp.","Castela"
"CASTI2","Castilleja Mutis ex L. f.","Castilleja"
"CATAL","Catalpa Scop.","Catalpa"
"CATHE","Cathestecum J. Presl","Cathestecum"
"CAVE6","Carex vesicaria L.","blister sedge"
"CAWR","Calycoseris wrightii A. Gray","white tackstem"
"CEANO","Ceanothus L.","Ceanothus"
"CEAR4","Cerastium arvense L.","field chickweed"
"CEBE2","Cerastium beeringianum Cham. & Schltdl.","Bering chickweed"
"CEDI3","Centaurea diffusa Lam.","diffuse knapweed"
"CEEC","Cenchrus echinatus L.","southern sandbur"
"CEPA8","Celtis pallida Torr.","desert hackberry"
"CEFE","Ceanothus fendleri A. Gray","Fendler ceanothus"
"CEFO2","Cerastium fontanum Baumg.","common chickweed"
"CEGR","Ceanothus greggii A. Gray","desert ceanothus"
"CEGR7","Cerastium gracile Dufour","slender chickweed"
"CEIN3","Ceanothus integerrimus Hook. & Arn.","deerbrush ceanothus"
"CEIN7","Cercocarpus intricatus S. Watson","littleleaf mountain-mahogany"
"CELA","Celtis laevigata Willd.","netleaf hackberry"
"CELE3","Cercocarpus ledifolius Nutt.","curlleaf mountain-mahogany"
"CELO3","Cenchrus longispinus (Hack.) Fernald","longspine sandbur"
"CELTI","Celtis L.","Celtis"
"CEME2","Centaurea melitensis L.","Maltese star thistle"
"CEMO2","Cercocarpus montanus Raf.","alderleaf mountain-mahogany"
"CEMOG","Cercocarpus montanus Raf. var. glaber (S. Watson) F.L. Martin","birchleaf mountain-mahogany"
"CENCH","Cenchrus L.","Cenchrus"
"CENTA","Centaurea L.","Centaurea"
"CENU2","Cerastium nutans Raf.","nodding chickweed"
"CEOC2","Cephalanthus occidentalis L.","buttonbush"
"CEOR9","Cercis orbiculata Greene","redbud"
"CEPHA","Cephalanthus L.","Cephalanthus"
"CERAS","Cerastium L.","Cerastium"
"CERCI2","Cercis L.","Cercis"
"CERCO","Cercocarpus Kunth","Cercocarpus"
"CESO3","Centaurea solstitialis L.","yellow star thistle"
"CEBI2","Centaurea biebersteinii DC.","spotted knapweed"
"CETE3","Cerastium texanum Britton","Texas chickweed"
"CHAEN","Chaenactis DC.","Chaenactis"
"CHAL11","Chamaesyce albomarginata (Torr. & A. Gray) Small","whitemargin spurge"
"CHAL7","Chenopodium album L.","common lambsquarters"
"CHAM","Chenopodium ambrosioides L.","Mexican tea goosefoot"
"CHAMA15","Chamaesyce Gray","Chamaesyce"
"CHAMA2","Chamaebatiaria (Porter) Maxim.","Chamaebatiaria"
"CHBA11","Chrysothamnus baileyi Woot. & Standl.","Bailey rabbitbrush"
"CHBR","Chorizanthe brevicornu Torr.","brittle spineflower"
"CHCA4","Chenopodium capitatum (L.) Asch.","strawberry blite goosefoot"
"CHCO6","Chorizanthe corrugata (Torr.) Torr. & A. Gray","wrinkled spineflower"
"CHDE","Chenopodium desiccatum A. Nelson","narrowleaf goosefoot"
"CHDO","Chaenactis douglasii (Hook.) Hook. & Arn.","Douglas pincushion flower"
"CHENO","Chenopodium L.","Chenopodium"
"CHFR","Chaenactis fremontii A. Gray","desert pincushion flower"
"CHFR3","Chenopodium fremontii S. Watson","Fremont goosefoot"
"CHGA2","Chloris gayana Kunth","Rhodes windmillgrass"
"CHGR17","Chamaesyce gracillima (S. Watson) Millsp.","Mexican spurge"
"CHGR6","Chrysothamnus greenei (A. Gray) Greene","Greene rabbitbrush"
"CHHY3","Chamaesyce hyssopifolia (L.) Small","leafy spurge"
"CHILO","Chilopsis D. Don","Chilopsis"
"CHIN2","Chenopodium incanum (S. Watson) A. Heller","mealy goosefoot"
"CHLE4","Chenopodium leptophyllum (Moq.) Nutt. ex S. Watson","narrowleaf goosefoot"
"CHLI2","Chilopsis linearis (Cav.) Sweet","desert-willow"
"CHLI3","Chrysothamnus linifolius Greene","spearleaf rabbitbrush"
"CHLOR","Chloris Sw.","Chloris"
"CHMA","Chaenactis macrantha D.C. Eaton","largehead pincushion flower"
"CHMA15","Chamaesyce maculata (L.) Small","spotted spurge"
"CHMI2","Chamaebatiaria millefolium (Torr.) Maxim.","fernbush"
"CHMU2","Chenopodium murale L.","nettleleaf goosefoot"
"CHNE3","Chenopodium neomexicanum Standl.","New Mexico goosefoot"
"CHORI2","Chorizanthe R. Br. ex Benth.","Chorizanthe"
"CHPO12","Chamaesyce polycarpa (Benth.) Millsp. ex Parish","smallseed spurge"
"CHPR5","Chenopodium pratericola Rydb.","desert goosefoot"
"CHPR6","Chamaesyce prostrata (Aiton) Small","prostrate spurge"
"CHRI","Chorizanthe rigida (Torr.) Torr. & A. Gray","turkshead"
"CHRU","Chenopodium rubrum L.","red goosefoot"
"CHRYS2","Chrysanthemum L.","Chrysanthemum"
"CHRYS9","Chrysothamnus Nutt.","Chrysothamnus"
"CHSE4","Chamaesyce serpens (Kunth) Small","matted spurge"
"CHSE6","Chamaesyce serpyllifolia (Pers.) Small","thymeleaf spurge"
"CHST8","Chamaesyce stictospora (Engelm.) Small","slimseed spurge"
"CHVE2","Chloris verticillata Nutt.","tumble windmillgrass"
"CHVI4","Chloris virgata Sw.","feather fingergrass"
"CHVI8","Chrysothamnus viscidiflorus (Hook.) Nutt.","Douglas rabbitbrush"
"CHWA","Chenopodium watsonii A. Nelson","Watson goosefoot"
"CHWA2","Chorizanthe watsonii Torr. & A. Gray","fivetooth spineflower"
"CIAR3","Cirsium arizonicum (A. Gray) Petr.","Arizona thistle"
"CIAR4","Cirsium arvense (L.) Scop.","Canada thistle"
"CICHO","Cichorium L.","Cichorium"
"CICUT","Cicuta L.","Cicuta"
"CIDR2","Cirsium drummondii Torr. & A. Gray","dwarf thistle"
"CIIN","Cichorium intybus L.","chicory"
"CIMA2","Cicuta maculata L.","spotted water hemlock"
"CINE","Cirsium neomexicanum A. Gray","New Mexico thistle"
"CIOC2","Cirsium ochrocentrum A. Gray","yellowspine thistle"
"CIPA","Cirsium parryi (A. Gray) Petr.","Parry thistle"
"CIRSI","Cirsium Mill.","Cirsium"
"CIUN","Cirsium undulatum (Nutt.) Spreng.","wavyleaf thistle"
"CIVU","Cirsium vulgare (Savi) Ten.","bull thistle"
"CIWH","Cirsium wheeleri (A. Gray) Petr.","Wheeler thistle"
"CLDR","Clematis drummondii Torr. & A. Gray","Drummond virginsbower"
"CLEMA","Clematis L.","Clematis"
"CLEOM","Cleome L.","Cleome"
"CLHI","Clematis hirsutissima Pursh","hairy virginsbower"
"CLIS","Cleome isomeris Greene","burrofat"
"CLITO","Clitoria L.","Clitoria"
"CLLI2","Clematis ligusticifolia Nutt.","western white virginsbower"
"CLLU2","Cleome lutea Hook.","yellow beeplant"
"CLMA4","Clitoria mariana L.","Atlantic pigeonwings"
"CLMU","Cleome multicaulis DC.","slender spiderflower"
"CLPA","Clematis palmeri Rose","Palmer virginsbower"
"CLSE","Cleome serrulata Pursh","Rocky Mountain beeplant"
"CNAN","Cnidoscolus angustidens Torr.","mala mujer"
"CNIDO","Cnidoscolus Pohl","Cnidoscolus"
"COAR4","Convolvulus arvensis L.","field bindweed"
"COAU2","Corydalis aurea Willd.","golden corydalis"
"COBO","Conyza bonariensis (L.) Cronquist","asthma horseweed"
"COCA31","Coursetia caribaea (Jacq.) Lavin","anil falso"
"COCA5","Conyza canadensis (L.) Cronquist","Canadian horseweed"
"COCA8","Coreopsis californica (Nutt.) H.K. Sharsmith","California tickseed"
"COCU2","Corydalis curvisiliqua Engelm.","curvepod corydalis"
"CODI4","Commelina dianthifolia Delile","birdbill dayflower"
"CODO2","Coreopsis douglasii (DC.) H.M. Hall","Douglas tickseed"
"COEQ","Convolvulus equitans Benth.","hoary bindweed"
"COER","Commelina erecta L.","whitemouth dayflower"
"COER5","Condalia ericoides (A. Gray) M.C. Johnst.","javelina bush"
"COGL","Condalia globosa I.M. Johnst.","bitter condalia"
"COGL7","Coursetia glabella (A. Gray) Lavin","smooth coursetia"
"COGL8","Coursetia glandulosa A. Gray","samota"
"COLEO","Coleogyne Torr.","Coleogyne"
"COMA2","Conium maculatum L.","poison hemlock"
"COMA4","Corallorrhiza maculata (Raf.) Raf., orth. var.","spotted coralroot"
"COMAN","Comandra Nutt.","Comandra"
"COME2","Conioselinum mexicanum J.M. Coult. & Rose","Mexican hemlock-parsley"
"COMME","Commelina L.","Commelina"
"CONDA","Condalia Cav.","Condalia"
"CONIO","Conioselinum Hoffm.","Conioselinum"
"CONIU","Conium L.","Conium"
"CONVO","Convolvulus L.","Convolvulus"
"CONYZ","Conyza Less.","Conyza"
"COPA13","Cottea pappophoroides Kunth","cotta grass"
"COPA16","Cordia parvifolia A. DC.","small leaf cordia"
"COPA9","Cordylanthus parviflorus (Ferris) Wiggins","purple birdsbeak"
"CORA","Coleogyne ramosissima Torr.","blackbrush"
"CORAL2","Corallorrhiza Gagnebin, orth. rej.","Corallorrhiza"
"CORDI","Cordia L.","Cordia"
"CORDY","Cordylanthus Nutt. ex Benth.","Cordylanthus"
"CORE3","Coryphantha recurvata (Engelm.) Britton & Rose","Santa Cruz beehive cactus"
"COREO2","Coreopsis L.","Coreopsis"
"CORNU","Cornus L.","Cornus"
"COSCR","Coryphantha scheeri (Muehlenpf.) L.D. Benson var. robustispina (Schott ex Engelm.) L.D. Benson","Pima pineapple cactus"
"COSC6","Coryphantha scheeri (Muehlenpf.) L.D. Benson","Pima pineapple cactus"
"CORYD","Corydalis DC.","Corydalis"
"CORYP","Coryphantha (Engelm.) Lem.","Coryphantha"
"COSC2","Conioselinum scopulorum (A. Gray) J.M. Coult. & Rose","Rocky Mountain hemlock-parsley"
"COSE16","Cornus sericea L.","redosier dogwood"
"COSP3","Condalia spathulata A. Gray","knifeleaf condalia"
"COST","Corallorrhiza striata Lindl., orth. var.","striped coralroot"
"COTI3","Coreopsis tinctoria Nutt.","golden tickseed"
"COTTE","Cottea Kunth","Cottea"
"COUM","Comandra umbellata (L.) Nutt.","bastard toadflax"
"COURS","Coursetia DC.","Coursetia"
"COWA","Condalia warnockii M.C. Johnst.","Mexican crucillo"
"COWI2","Corallorrhiza wisteriana Conrad, orth. var.","spring coralroot"
"COWR2","Cordylanthus wrightii A. Gray","Wright birdsbeak"
"CRAC2","Crepis acuminata Nutt.","tapertip hawksbeard"
"CRAC3","Cryptogramma acrostichoides R. Br.","American rockbrake"
"CRAL","Cryptantha albida (Kunth) I.M. Johnst.","New Mexico cryptantha"
"CRAN4","Cryptantha angustifolia (Torr.) Greene","popcornflower cryptantha"
"CRASS","Crassula L.","Crassula"
"CRATA","Crataegus L.","Crataegus"
"CRCA13","Cryptantha capitata (Eastw.) I.M. Johnst.","capitate cryptantha"
"CRCA5","Croton californicus Müll. Arg.","California croton"
"CRCI2","Cryptantha circumscissa (Hook. & Arn.) I.M. Johnst.","cushion cryptantha"
"CRCI3","Cryptantha cinerea (Greene) Cronquist","James cryptantha"
"CRCO34","Crassula connata (Ruiz & Pav.) A. Berger","sand pygmyweed"
"CRCR3","Cryptantha crassisepala (Torr. & A. Gray) Greene","thicksepal cryptantha"
"CREPI","Crepis L.","Crepis"
"CRER","Crataegus erythropoda Ashe","cerro hawthorn"
"CRFE3","Cryptantha fendleri (A. Gray) Greene","sand dune cryptantha"
"CRGA2","Cryptantha ganderi I.M. Johnst.","Gander cryptantha"
"CRHO3","Cryptantha holoptera (A. Gray) J.F. Macbr.","winged cryptantha"
"CRIN4","Crepis intermedia A. Gray","limestone hawksbeard"
"CRLI2","Croton lindheimerianus Scheele","threeseed croton"
"CRMA7","Cryptantha maritima (Greene) Greene","Guadalupe cryptantha"
"CRMI","Cryptantha micrantha (Torr.) I.M. Johnst.","redroot cryptantha"
"CRMU2","Cryptantha muricata (Hook. & Arn.) A. Nelson & J.F. Macbr.","pointed cryptantha"
"CRNE2","Cryptantha nevadensis A. Nelson & Kennedy","Nevada cryptantha"
"CROC","Crepis occidentalis Nutt.","largeflower hawksbeard"
"CROTA","Crotalaria L.","Crotalaria"
"CROTO","Croton L.","Croton"
"CRPT","Cryptantha pterocarya (Torr.) Greene","wingnut cryptantha"
"CRPU4","Crotalaria pumila Ortega","low rattlebox"
"CRRA2","Cryptantha racemosa (S. Watson) Greene","bushy cryptantha"
"CRRI","Crataegus rivularis Nutt.","river hawthorn"
"CRRU3","Crepis runcinata (James) Torr. & A. Gray","fiddleleaf hawksbeard"
"CRSA4","Crotalaria sagittalis L.","arrowhead rattlebox"
"CRSE11","Croton setigerus Hook.","doveweed croton"
"CRSE5","Cryptantha setosissima (A. Gray) Payson","bristly cryptantha"
"CRSO","Croton sonorae Torr.","Sonoran croton"
"CRTE4","Croton texensis (Klotzsch) Müll. Arg.","Texas croton"
"CRVI6","Crassula viridis (S. Watson) Bywater & Wickens","pricklyseed pygmyweed"
"CRWI2","Croton wigginsii L.C. Wheeler","Wiggins croton"
"CRWO","Crataegus wootoniana Eggl.","Wooton hawthorn"
"CRYPT","Cryptantha Lehm. ex G. Don","Cryptantha"
"CRYPT3","Cryptogramma R. Br.","Cryptogramma"
"CUAP","Cuscuta applanata Engelm.","Gila River dodder"
"CUAR","Cupressus arizonica Greene","Arizona cypress"
"CUCO3","Cuscuta coryli Engelm.","hazel dodder"
"CUCUR","Cucurbita L.","Cucurbita"
"CUDE2","Cuscuta denticulata Engelm.","smalltooth dodder"
"CUDI","Cucurbita digitata A. Gray","fingerleaf gourd"
"CUER","Cuscuta erosa Yunck.","Sonoran dodder"
"CUFO","Cucurbita foetidissima Kunth","buffalo gourd"
"CUGR","Cuscuta gronovii Willd. ex Schult.","love dodder"
"CUIN","Cuscuta indecora Choisy","largeseed dodder"
"CUOD","Cuscuta odontolepis Engelm.","Santa Rita dodder"
"CUPA","Cucurbita palmata S. Watson","coyote melon"
"CUPO2","Cuscuta potosina Schaffn.","globe dodder"
"CUPRE","Cupressus L.","Cupressus"
"CUSA","Cuscuta salina Engelm.","saltmarsh dodder"
"CUSCU","Cuscuta L.","Cuscuta"
"CUTU","Cuscuta tuberculata Brandegee","tuber dodder"
"CUUM","Cuscuta umbellata Kunth","flatglobe dodder"
"CYAC2","Cyperus acuminatus Torr. & Hook. ex Torr.","taperleaf flatsedge"
"OPAC","Opuntia acanthocarpa Engelm. & Bigelow","buckhorn cholla"
"CYAM","Cyperus amabilis Vahl","foothill flatsedge"
"OPAR2","Opuntia arbuscula Engelm.","pencil cholla"
"CYDA","Cynodon dactylon (L.) Pers.","Bermuda grass"
"CYDI4","Cyperus difformis L.","variable flatsedge"
"OPEC","Opuntia echinocarpa Engelm. & Bigelow","silver cholla"
"CYES","Cyperus esculentus L.","yellow nutsedge"
"CYFE2","Cyperus fendlerianus Boeckeler","Fendler flatsedge"
"OPFU","Opuntia fulgida Engelm.","jumping cholla"
"OPIM","Opuntia imbricata (Haw.) DC.","tree cholla"
"CYLA2","Cyperus laevigatus L.","smooth flatsedge"
"OPLE","Opuntia leptocaulis DC.","Christmas cholla"
"CYMA4","Cyperus manimae Kunth","smoothstem flatsedge"
"CYNI2","Cyperus niger Ruiz & Pav.","black flatsedge"
"CYNOD","Cynodon Rich.","Cynodon"
"CYOD","Cyperus odoratus L.","fragrant flatsedge"
"CYPER","Cyperus L.","Cyperus"
"OPRA","Opuntia ramosissima Engelm.","diamond cholla"
"CYRO","Cyperus rotundus L.","purple nutsedge"
"CYSP2","Cyperus spectabilis Link","spectacular flatsedge"
"OPSP2","Opuntia spinosior (Engelm.) Toumey","cane cholla"
"OPVE","Opuntia versicolor Engelm. ex J.M. Coult.","staghorn cholla"
"OPWH","Opuntia whipplei Engelm. & Bigelow","Whipple cholla"
"DAAL","Dalea albiflora A. Gray","whiteflower dalea"
"DACA3","Danthonia californica Bol.","California oatgrass"
"DACTY","Dactylis L.","Dactylis"
"DADI2","Datura discolor Bernh.","desert thornapple"
"DAFO","Dalea formosa Torr.","feathery dalea"
"DAFL3","Dasiphora floribunda (Pursh) Raf.","shrubby-cinquefoil"
"DAGL","Dactylis glomerata L.","orchardgrass"
"DAGR","Dalea grayi (Vail) L.O. Williams","Gray dalea"
"DALA3","Dalea lanata Spreng.","woolly dalea"
"DALE3","Dalea leporina (Aiton) Bullock","foxtail dalea"
"DALEA","Dalea L.","Dalea"
"DAMO","Dalea mollis Benth.","soft dalea"
"DAMO2","Dalea mollissima (Rydb.) Munz","hairy dalea"
"DANE","Dalea neomexicana (A. Gray) Cory","New Mexico dalea"
"DANTH","Danthonia DC.","Danthonia"
"DAPR","Dalea pringlei A. Gray","Pringle dalea"
"DAPU4","Dalea pulchra Gentry","Santa Catalina dalea"
"DAPU5","Dalea purpurea Vent.","violet dalea"
"DAPU7","Dasyochloa pulchella (Kunth) Willd. ex Rydb.","fluffgrass"
"DASIP","Dasiphora Raf.","Dasiphora"
"DAST","Datura stramonium L.","jimsonweed"
"DASYL","Dasylirion Zucc.","Dasylirion"
"DASYO","Dasyochloa Willd. ex Rydb.","Dasyochloa"
"DATUR","Datura L.","Datura"
"DAVE","Dalea versicolor Zucc.","oakwoods dalea"
"DAWH2","Dasylirion wheeleri S. Watson","sotol"
"DAWR","Dalea wrightii A. Gray","Wright dalea"
"DAWR2","Datura wrightii Regel","sacred datura"
"DEAR2","Desmodium arizonicum S. Watson","Arizona tickclover"
"DEBA3","Desmodium batocaulon A. Gray","bushy tickclover"
"DECA6","Descurainia californica (A. Gray) O.E. Schulz","Sierran tansymustard"
"DECA18","Deschampsia caespitosa (L.) P. Beauv., orth. var.","tufted hairgrass"
"DECI2","Desmodium cinerascens A. Gray","spiked tickclover"
"DECO4","Desmanthus covillei (Britton & Rose) Wiggins ex B.L. Turner","Coville bundleflower"
"DEGL8","Desmanthus glandulosus (B.L. Turner) Luckow","glandular bundleflower"
"DEGR2","Desmodium grahamii A. Gray","Graham tickclover"
"DEIN5","Descurainia incana (Bernh. ex Fisch. & C.A. Mey.) Dorn","mountain tansymustard"
"DELPH","Delphinium L.","Delphinium"
"DENE","Desmodium neomexicanum A. Gray","New Mexico tickclover"
"DENU2","Delphinium nuttallianum Pritz. ex Walp.","twolobe larkspur"
"DEOB","Descurainia obtusa (Greene) O.E. Schulz","blunt tansymustard"
"DEPA","Delphinium parishii A. Gray","desert larkspur"
"DEPI","Descurainia pinnata (Walter) Britton","western tansymustard"
"DEPS","Desmodium psilocarpum A. Gray","Santa Cruz Island tickclover"
"DEPS2","Desmodium psilophyllum Schltdl.","simpleleaf tickclover"
"DERE4","Desmodium retinens Schltdl.","Santa Rita tickclover"
"DESC","Delphinium scaposum Greene","barestem larkspur"
"DESC2","Delphinium scopulorum A. Gray","Rocky Mountain larkspur"
"DESCH","Deschampsia P. Beauv.","Deschampsia"
"DESCU","Descurainia Webb & Bethel.","Descurainia"
"DESMA","Desmanthus Willd.","Desmanthus"
"DESMO","Desmodium Desv.","Desmodium"
"DEVI3","Desmanthus virgatus (L.) Willd.","wild bundleflower"
"DEWO","Delphinium wootonii Rydb.","Organ Mountain larkspur"
"DICA14","Dichelostemma capitatum (Benth.) Alph. Wood","bluedicks"
"DICA7","Dithyrea californica Harv.","California spectaclepod"
"DICA8","Digitaria californica (Benth.) Henr.","Arizona cottontop"
"DICHE2","Dichelostemma Kunth","Dichelostemma"
"DIFU2","Dipsacus fullonum L.","common teasel"
"DIGIT2","Digitaria Haller","Digitaria"
"DIIS","Digitaria ischaemum (Schreb.) Schreb. ex Muhl.","smooth crabgrass"
"DIMOR","Dimorphocarpa Rollins","Dimorphocarpa"
"DIODI","Diodia L.","Diodia"
"DIPI2","Dimorphocarpa pinnatifida Rollins","tansy spectaclepod"
"DIPSA","Dipsacus L.","Dipsacus"
"DISA","Digitaria sanguinalis (L.) Scop.","large crabgrass"
"DISP","Distichlis spicata (L.) Greene","desert saltgrass"
"DISTI","Distichlis Raf.","Distichlis"
"DITE2","Diodia teres Walter","buttonweed"
"DITHY","Dithyrea Harv.","Dithyrea"
"DIWI2","Dimorphocarpa wislizeni (Engelm.) Rollins","touristplant spectaclepod"
"DODEC","Dodecatheon L.","Dodecatheon"
"DODON","Dodonaea Mill.","Dodonaea"
"DOPU","Dodecatheon pulchellum (Raf.) Merr.","darkthroat shootingstar"
"DOVI","Dodonaea viscosa (L.) Jacq.","hopseed bush"
"DRABA","Draba L.","Draba"
"DRAL4","Draba albertina Greene","slender draba"
"DRAR3","Dryopteris arguta (Kaulf.) Watt","coastal woodfern"
"DRAS","Draba asprella Greene","rough draba"
"DRAU","Draba aurea Vahl ex Hornem.","golden draba"
"DRBR","Draba brachycarpa Nutt. ex Torr. & A. Gray","shortpod draba"
"DRCU","Draba cuneifolia Nutt. ex Torr. & A. Gray","wedgeleaf draba"
"DRRU2","Dryopetalon runcinatum A. Gray","rock mustard"
"DRSP","Draba spectabilis Greene","showy draba"
"DRYOP","Dryopteris Adans.","Dryopteris"
"DRYOP2","Dryopetalon A. Gray","Dryopetalon"
"DUCO","Dudleya collomiae Rose ex Morton","echeveria"
"DUDLE","Dudleya Britton & Rose","Dudleya"
"DUER","Duranta erecta L.","golden dewdrops"
"DUPU","Dudleya pulverulenta (Nutt.) Britton & Rose","chalk echeveria"
"DURAN","Duranta L.","Duranta"
"DYPA","Dyssodia papposa (Vent.) Hitchc.","dogbane dyssodia"
"DYSSO","Dyssodia Cav.","Dyssodia"
"ECCO2","Echinochloa colona (L.) Link","junglerice grass"
"ECCO5","Echinocereus coccineus Engelm.","scarlet hedgehog cactus"
"ECCOA","Echinocereus coccineus Engelm. var. arizonicus (Rose ex Orcutt) D.J. Ferguson","Arizona hedgehog cactus"
"ECCR","Echinochloa crus-galli (L.) P. Beauv.","barnyard grass"
"ECDA","Echinocereus dasyacanthus Engelm.","spiny hedgehog cactus"
"ECEN","Echinocereus engelmannii (Parry ex Engelm.) Lem.","Engelmann hedgehog cactus"
"ECFE","Echinocereus fendleri (Engelm.) Sencke ex J.N. Haage","Fendler hedgehog cactus"
"ECHIN2","Echinocactus Link & Otto","Echinocactus"
"ECHIN3","Echinocereus Engelm.","Echinocereus"
"ECHIN4","Echinochloa P. Beauv.","Echinochloa"
"ECHO","Echinocactus horizonthalonius Lem.","turkshead barrel cactus"
"ECNI","Echinocereus nicholii (L.D. Benson) Parfitt","Nichol hedgehog cactus"
"ECPE","Echinocereus pectinatus (Scheidw.) Engelm.","rainbow cactus"
"ECPO2","Echinocactus polycephalus Engelm. & Bigelow","many-headed barrel cactus"
"ECPO6","Echinocereus polyacanthus Engelm.","Mojave mound hedgehog cactus"
"ECRI3","Echinocereus rigidissimus (Engelm.) hort ex F. Haage","rainbow hedgehog cactus"
"ECTR","Echinocereus triglochidiatus Engelm.","claretcup hedgehog cactus"
"ELAC","Eleocharis acicularis (L.) Roem. & Schult.","needle spikerush"
"ELAEA","Elaeagnus L.","Elaeagnus"
"ELAN","Elaeagnus angustifolia L.","Russian-olive"
"ELBA","Elionurus barbiculmis Hack.","woolly bunchgrass"
"ELCA4","Elymus canadensis L.","Canada wildrye"
"ELEL5","Elymus elymoides (Raf.) Swezey","bottlebrush squirreltail"
"ELEOC","Eleocharis R. Br.","Eleocharis"
"ELFL","Eleocharis flavescens (Poir.) Urb.","yellow spikerush"
"ELGE","Eleocharis geniculata (L.) Roem. & Schult.","Canada spikerush"
"ELGL","Elymus glaucus Buckley","blue wildrye"
"ELION","Elionurus Humb. & Bonpl. ex Willd.","Elionurus"
"ELLA3","Elymus lanceolatus (Scribn. & J.G. Sm.) Gould","streambank wheatgrass"
"ELLAL","Elymus lanceolatus (Scribn. & J.G. Sm.) Gould ssp. lanceolatus","thickspike wheatgrass"
"ELMO","Eleocharis montana (Kunth) Roem. & Schult.","mountain spikerush"
"ELMO2","Eleocharis montevidensis Kunth","sand spikerush"
"ELPA3","Eleocharis palustris (L.) Roem. & Schult.","common spikerush"
"ELPA4","Eleocharis parishii Britton","Parish spikerush"
"ELPS","Elymus ×pseudorepens (Scribn. & J.G. Sm.) Barkworth & D.R. Dewey [lanceolatus × trachycaulus]","creeping wildrye"
"ELRE4","Elymus repens (L.) Gould","quackgrass"
"ELRO2","Eleocharis rostellata (Torr.) Torr.","beaked spikerush"
"ELTR7","Elymus trachycaulus (Link) Gould ex Shinners","slender wheatgrass"
"ELVI3","Elymus virginicus L.","Virginia wildrye"
"ELYMU","Elymus L.","Elymus"
"ENAR","Enceliopsis argophylla (D.C. Eaton) A. Nelson","silverleaf sunray"
"ENCEL","Encelia Adans.","Encelia"
"ENCEL2","Enceliopsis (A. Gray) A. Nelson","Enceliopsis"
"ENDE","Enneapogon desvauxii Desv. ex P. Beauv.","spike pappusgrass"
"ENFA","Encelia farinosa A. Gray ex Torr.","white brittlebush"
"ENFR","Encelia frutescens (A. Gray) A. Gray","rayless brittlebush"
"ENGEL","Engelmannia A. Gray ex Nutt.","Engelmannia"
"ENNEA","Enneapogon Desv. ex P. Beauv.","Enneapogon"
"ENPE4","Engelmannia peristenia (Raf.) Goodman & C.A. Lawson","Engelmann daisy"
"EPAS","Ephedra aspera Engelm. ex S. Watson","rough Mormon tea"
"EPHED","Ephedra L.","Ephedra"
"EPNE","Ephedra nevadensis S. Watson","Nevada Mormon tea"
"EPTO","Ephedra torreyana S. Watson","Torrey Mormon tea"
"EPTR","Ephedra trifurca Torr. ex S. Watson","longleaf Mormon tea"
"EPVI","Ephedra viridis Coville","green Mormon tea"
"EQAR","Equisetum arvense L.","field horsetail"
"EQHY","Equisetum hyemale L.","scouringrush horsetail"
"EQLA","Equisetum laevigatum A. Braun","smooth horsetail"
"EQUIS","Equisetum L.","Equisetum"
"ERAC4","Eriochloa acuminata (J. Presl) Kunth","southwestern cupgrass"
"ERAGR","Eragrostis von Wolf","Eragrostis"
"ERAL4","Eriogonum alatum Torr.","winged buckwheat"
"ERAN2","Eriodictyon angustifolium Nutt.","yerba santa"
"ERAR5","Eriochloa aristata Vasey","bearded cupgrass"
"ERCA14","Erysimum capitatum (Douglas ex Hook.) Greene","western wallflower"
"ERCA2","Erigeron caespitosus Nutt.","tufted fleabane"
"ERCA4","Erigeron canus A. Gray","hoary fleabane"
"ERCE3","Ericameria cervina (S. Watson) Rydb.","deer goldenbush"
"ERCI","Eragrostis cilianensis (All.) Vign. ex Janchen","stinkgrass"
"ERCI6","Erodium cicutarium (L.) L'Hér. ex Aiton","redstem filaree"
"ERCO14","Eriogonum corymbosum Benth.","crispleaf buckwheat"
"ERCO27","Erigeron concinnus (Hook. & Arn.) Torr. & A. Gray","Navajo fleabane"
"ERCO8","Eriochloa contracta Hitchc.","prairie cupgrass"
"ERCU2","Eragrostis curvula (Schrad.) Nees","weeping lovegrass"
"ERCU7","Ericameria cuneata (A. Gray) McClatchie","cliff goldenbush"
"ERDE6","Eriogonum deflexum Torr.","skeletonweed buckwheat"
"ERDE9","Eriogonum deserticola S. Watson","dune buckwheat"
"ERDI2","Eriastrum diffusum (A. Gray) H. Mason","miniature woollystar"
"ERDI4","Erigeron divergens Torr. & A. Gray","spreading fleabane"
"ERDI5","Eriogonum divaricatum Hook.","divergent buckwheat"
"EREA","Erigeron eatonii A. Gray","Eaton fleabane"
"ERER2","Eriastrum eremicum (Jeps.) H. Mason","desert eriastrum"
"ERFA2","Eriogonum fasciculatum Benth.","flattop buckwheat"
"ERFL","Erigeron flagellaris A. Gray","trailing fleabane"
"ERFL7","Erythrina flabelliformis Kearney","coralbean"
"ERFO3","Erigeron formosissimus Greene","beautiful fleabane"
"ERIAS","Eriastrum Woot. & Standl.","Eriastrum"
"ERICA2","Ericameria Nutt.","Ericameria"
"ERIGE2","Erigeron L.","Erigeron"
"ERIN","Eragrostis intermedia Hitchc.","plains lovegrass"
"ERIN4","Eriogonum inflatum Torr. & Frém.","desert trumpet buckwheat"
"ERIOC2","Eriochloa Kunth","Eriochloa"
"ERIOD","Eriodictyon Benth.","Eriodictyon"
"ERIOG","Eriogonum Michx.","Eriogonum"
"ERION","Erioneuron Nash","Erioneuron"
"ERIOP2","Eriophyllum Lag.","Eriophyllum"
"ERJA","Eriogonum jamesii Benth.","James buckwheat"
"ERLA12","Ericameria laricifolia (A. Gray) Shinners","turpentine bush"
"ERLE","Eragrostis lehmanniana Nees","Lehmann lovegrass"
"ERLE14","Erigeron lemmonii A. Gray","Lemmon fleabane"
"ERLE7","Eriochloa lemmonii Vasey & Scribn.","canyon cupgrass"
"ERLI6","Ericameria linearifolia (DC.) Urbatsch & Wussow","narrowleaf goldenbush"
"ERME","Eragrostis mexicana (Hornem.) Link","Mexican lovegrass"
"ERMU6","Eriophyllum multicaule (DC.) A. Gray","manystem woolly-sunflower"
"ERNA10","Ericameria nauseosa (Pall. ex Pursh) G.L. Nesom & Baird","rubber rabbitbrush"
"ERNE3","Erigeron neomexicanus A. Gray","oakbelt fleabane"
"ERODI","Erodium L'Hér. ex Aiton","Erodium"
"EROR5","Erigeron oreophilus Greenm.","chaparral fleabane"
"ERPA29","Ericameria paniculata (A. Gray) Rydb.","Mojave rabbitbrush"
"ERPA30","Ericameria parryi (A. Gray) G.L. Nesom & Baird","Parry rabbitbrush"
"ERPI5","Erioneuron pilosum (Buckley) Nash","hairy tridens"
"ERPR4","Eriophyllum pringlei A. Gray","Pringle woolly-sunflower"
"ERRA3","Eriogonum racemosum Nutt.","redroot buckwheat"
"ERSU","Eragrostis superba Peyr.","Wilman lovegrass"
"ERTE13","Erodium texanum A. Gray","bull filaree"
"ERTR8","Eriogonum trichopes Torr.","little desert trumpet buckwheat"
"ERUM","Eriogonum umbellatum Torr.","sulphurflower buckwheat"
"ERUT","Erigeron utahensis A. Gray","Utah fleabane"
"ERWR","Eriogonum wrightii Torr. ex Benth.","shrubby buckwheat"
"ERYSI","Erysimum L.","Erysimum"
"ERYTH","Erythrina L.","Erythrina"
"ESCA2","Eschscholzia californica Cham.","California poppy"
"ESCAM","Eschscholzia californica Cham. ssp. mexicana (Greene) C. Clark","Mexican gold poppy"
"ESCHS","Eschscholzia Cham.","Eschscholzia"
"ESCOB","Escobaria Britton & Rose","Escobaria"
"ESGL","Eschscholzia glyptosperma Greene","desert gold poppy"
"ESMI","Eschscholzia minutiflora S. Watson","little gold poppy"
"ESVI2","Escobaria vivipara (Nutt.) Buxbaum","spinystar cactus"
"EUBI4","Euphorbia bilobata Engelm.","blackseed spurge"
"EUCH2","Euphorbia chamaesula Boiss.","mountain spurge"
"EUCNI","Eucnide Zucc.","Eucnide"
"EUDE4","Euphorbia dentata Michx.","toothed spurge"
"EUER2","Euphorbia eriantha Benth.","Mexican poinsettia spurge"
"EUES","Euphorbia esula L.","leafy spurge"
"EUEX5","Eustoma exaltatum (L.) Salisb. ex G. Don","catchfly prairie gentian"
"EUMU","Euryops multifidus (Thunb.) DC.","sweet resinbush"
"EUPA4","Euphorbia palmeri Engelm. ex S. Watson","woodland spurge"
"EUPHO","Euphorbia L.","Euphorbia"
"EURA2","Euphorbia radians Benth.","sun spurge"
"EURU5","Eucnide rupestris (Baill.) H.J. Thomp. & Ernst","rocknettle"
"EURYO","Euryops (Cass.) Cass.","Euryops"
"EUIN2","Euphorbia incisa Engelm.","Mojave spurge"
"EUSP","Euphorbia spathulata Lam.","warty spurge"
"EUSTO","Eustoma Salisb. ex G. Don","Eustoma"
"EUUR","Eucnide urens (Parry ex A. Gray) Parry","desert rocknettle"
"EVAL","Evolvulus alsinoides (L.) L.","slender evolvulus"
"EVAR","Evolvulus arizonicus A. Gray","hairy evolvulus"
"EVNU","Evolvulus nuttallianus Schult.","prostrate evolvulus"
"EVOLV","Evolvulus L.","Evolvulus"
"EVSE","Evolvulus sericeus Sw.","silver evolvulus"
"EYPO","Eysenhardtia polystachya auct. non (Ortega) Sarg.","kidneywood"
"EYSEN","Eysenhardtia Kunth","Eysenhardtia"
"FAGON","Fagonia L.","Fagonia"
"FALA","Fagonia laevis Standl.","California fagonia"
"FALLU","Fallugia Endl.","Fallugia"
"FAPA","Fallugia paradoxa (D. Don) Endl. ex Torr.","Apache plume"
"FEAR2","Festuca arizonica Vasey","Arizona fescue"
"FECY","Ferocactus cylindraceus (Engelm.) Orcutt","California barrel cactus"
"FEEM","Ferocactus emoryi (Engelm.) Orcutt","Emory barrel cactus"
"FEID","Festuca idahoensis Elmer","Idaho fescue"
"FENDL","Fendlera Engelm. & A. Gray","Fendlera"
"FEROC","Ferocactus Britton & Rose","Ferocactus"
"FERU","Fendlera rupicola A. Gray","cliff fendlerbush"
"FESTU","Festuca L.","Festuca"
"FEWI","Ferocactus wislizeni (Engelm.) Britton & Rose","fishhook barrel cactus"
"FEWR","Fendlera wrightii (A. Gray) A. Heller","Wright fendlerbush"
"FLCE","Flourensia cernua DC.","tarbush"
"FLOUR","Flourensia DC.","Flourensia"
"FOPUP","Forestiera pubescens Nutt. var. pubescens","New Mexico forestiera"
"FORES","Forestiera Poir.","Forestiera"
"FOSH","Forestiera shrevei Standl.","desert olive"
"FOSP2","Fouquieria splendens Engelm.","ocotillo"
"FOUQU","Fouquieria Kunth","Fouquieria"
"FRAGA","Fragaria L.","Fragaria"
"FRAN2","Fraxinus anomala Torr. ex S. Watson","singleleaf ash"
"FRANG","Frangula Mill.","Frangula"
"FRAXI","Fraxinus L.","Fraxinus"
"FRBE2","Frangula betulifolia (Greene) V. Grub.","birchleaf buckthorn"
"FRCA12","Frangula californica (Eschsch.) A. Gray","California buckthorn"
"FRCA6","Fremontodendron californicum (Torr.) Coville","flannelbush"
"FRCU","Fraxinus cuspidata Torr.","fragrant ash"
"FREMO2","Fremontodendron Coville","Fremontodendron"
"FRGO","Fraxinus gooddingii Little","Goodding ash"
"FRVE","Fragaria vesca L.","woodland strawberry"
"FRVE2","Fraxinus velutina Torr.","velvet ash"
"FRVI","Fragaria virginiana Duchesne","Virginia strawberry"
"FUCR","Funastrum crispum (Benth.) Schltr.","wavyleaf climbing milkweed"
"FUCY","Funastrum cynanchoides (Decne.) Schltr.","fringed climbing milkweed"
"FUHI","Funastrum hirtellum (A. Gray) Schltr.","hairy climbing milkweed"
"FUNAS","Funastrum Fourn.","Funastrum"
"GAAP2","Galium aparine L.","catchweed bedstraw"
"GAAR2","Gaillardia arizonica A. Gray","Arizona blanketflower"
"GAARP2","Gaillardia arizonica A. Gray var. pringlei (Rydb.) S.F. Blake","Pringle blanketflower"
"GABO2","Galium boreale L.","northern bedstraw"
"GACO5","Gaura coccinea Nutt. ex Pursh","scarlet gaura"
"GAFL2","Garrya flavescens S. Watson","yellowleaf silktassel"
"GAILL","Gaillardia Foug.","Gaillardia"
"GALIU","Galium L.","Galium"
"GAMO5","Gaura mollis James","velvetweed"
"GAPA","Gaillardia parryi Greene","Parry blanketflower"
"GAPI","Gaillardia pinnatifida Torr.","red dome blanketflower"
"GAPU","Gaillardia pulchella Foug.","firewheel blanketflower"
"GARRY","Garrya Douglas ex Lindl.","Garrya"
"GAST","Galium stellatum Kellogg","starry bedstraw"
"GAURA","Gaura L.","Gaura"
"GAWR3","Garrya wrightii Torr.","Wright silktassel"
"GEAF","Gentiana affinis Griseb.","pleated gentian"
"GEAM3","Gentianella amarella (L.) Böerner","autumn dwarf gentian"
"GEAMA","Gentianella amarella (L.) Böerner ssp. acuta (Michx.) J.M. Gillett","autumn dwarf gentian"
"GEAMH","Gentianella amarella (L.) Böerner ssp. heterosepala (Engelm.) J.M. Gillett","autumn dwarf gentian"
"GEAT2","Geranium atropurpureum A. Heller","western geranium"
"GEBA2","Gentianopsis barbellata (Engelm.) Iltis","bearded fringed gentian"
"GECA2","Geraea canescens Torr. & A. Gray","hairy desert-sunflower"
"GECA3","Geranium caespitosum James","purple cluster geranium"
"GECA5","Geranium carolinianum L.","Carolina geranium"
"GEFR","Gentiana fremontii Torr.","moss gentian"
"GEMA4","Geum macrophyllum Willd.","largeleaf avens"
"GEMA6","Gentianopsis macrantha (D. Don ex G. Don) Iltis","grand fringed gentian"
"GENTI","Gentiana L.","Gentiana"
"GENTI2","Gentianella Moench","Gentianella"
"GENTI3","Gentianopsis Ma","Gentianopsis"
"GERAE","Geraea Torr. & A. Gray","Geraea"
"GERAN","Geranium L.","Geranium"
"GERI","Geranium richardsonii Fisch. & Trautv.","Richardson geranium"
"GETR","Geum triflorum Pursh","prairie smoke avens"
"GETRC2","Geum triflorum Pursh var. ciliatum (Pursh) Fassett","old man's whiskers avens"
"GEUM","Geum L.","Geum"
"GILIA","Gilia Ruiz & Pav.","Gilia"
"GIRI","Gilia rigidula Benth.","bluebowls gilia"
"GISC","Gilia scopulorum M.E. Jones","rock gilia"
"GISI","Gilia sinuata Douglas ex Benth.","rosy gilia"
"GLAND","Glandularia J.F. Gmel.","Glandularia"
"GLBI2","Glandularia bipinnatifida (Nutt.) Nutt.","Dakota mock verbena"
"CHCO7","Chrysanthemum coronarium L.","crowndaisy"
"GLGO","Glandularia gooddingii (Briq.) Solbrig","Gooding mock verbena"
"GLOSS","Glossopetalon A. Gray","Glossopetalon"
"GLSP","Glossopetalon spinescens A. Gray","spiny greasebush"
"GOSSY","Gossypium L.","Gossypium"
"GOTH","Gossypium thurberi Todaro","desert wild cotton"
"GRAR2","Grindelia arizonica A. Gray","Arizona gumweed"
"GRAYI","Grayia Hook. & Arn.","Grayia"
"GRIND","Grindelia Willd.","Grindelia"
"OPKU","Opuntia kunzei Rose","dogturd cholla"
"GRLA","Grindelia laciniata Rydb.","cutleaf gumweed"
"GRNU","Grindelia nuda Alph. Wood","curlytop gumweed"
"GRSP","Grayia spinosa (Hook.) Moq.","spiny hopsage"
"GRSQ","Grindelia squarrosa (Pursh) Dunal","curlycup gumweed"
"GUMI","Gutierrezia microcephala (DC.) A. Gray","threadleaf snakeweed"
"GUSA2","Gutierrezia sarothrae (Pursh) Britton & Rusby","broom snakeweed"
"GUTIE","Gutierrezia Lag.","Gutierrezia"
"HABE3","Hackelia besseyi (Rydb.) J.L. Gentry","Bessey stickseed"
"HACKE","Hackelia Opiz","Hackelia"
"HAFL2","Hackelia floribunda (Lehm.) I.M. Johnst.","manyflower stickseed"
"HAGL","Halogeton glomeratus (M. Bieb.) C.A. Mey.","Halogeton"
"HALEN","Halenia Borkh.","Halenia"
"HALOG","Halogeton C.A. Mey.","Halogeton"
"HAPI2","Hackelia pinetorum (Greene ex A. Gray) I.M. Johnst.","pine stickseed"
"HARE2","Halenia recurva (Sm.) Allen","Mt. Graham spurred gentian"
"HEAN3","Helianthus annuus L.","common sunflower"
"HEAR2","Helenium arizonicum S.F. Blake","Arizona sneezeweed"
"HEAU","Helenium autumnale L.","fall sneezeweed"
"HEBO","Hedysarum boreale Nutt.","northern sweetvetch"
"HECO10","Heteropogon contortus (L.) P. Beauv. ex Roem. & Schult.","tanglehead"
"HECO26","Hesperostipa comata (Trin. & Rupr.) Barkworth","needle and thread"
"HECO5","Heliotropium convolvulaceum (Nutt.) A. Gray","phlox heliotrope"
"HECR3","Herissantia crispa (L.) Briz.","bladder mallow"
"HECU3","Heliotropium curassavicum L.","salt heliotrope"
"HEDEO","Hedeoma Pers.","Hedeoma"
"HEDI","Hedeoma diffusa Greene","spreading false pennyroyal"
"HEDR","Hedeoma drummondii Benth.","Drummond false pennyroyal"
"HEDYS","Hedysarum L.","Hedysarum"
"HEEA","Heuchera eastwoodiae Rosend., Butters & Lakela","Senator Mine alumroot"
"HEFU3","Heterotheca fulcrata (Greene) Shinners","green camphorweed"
"HEGR7","Heterotheca grandiflora Nutt.","telegraphweed"
"HEHY","Hedeoma hyssopifolia A. Gray","aromatic false pennyroyal"
"HELEN","Helenium L.","Helenium"
"HELIA","Helianthella Torr. & A. Gray","Helianthella"
"HELIA3","Helianthus L.","Helianthus"
"HELIO3","Heliotropium L.","Heliotropium"
"HELIO4","Heliomeris Nutt.","Heliomeris"
"HELO6","Heliomeris longifolia (B.L. Rob. & Greenm.) Cockerell","longleaf goldeneye"
"HEME","Heteropogon melanocarpus (Elliot) Elliot ex Benth.","sweet tanglehead"
"HEMU3","Heliomeris multiflora Nutt.","showy goldeneye"
"HENA","Hedeoma nana (Torr.) Briq.","dwarf false pennyroyal"
"HENE5","Hesperostipa neomexicana (Thurb. ex J.M. Coult.) Barkworth","New Mexico feathergrass"
"HENO","Heuchera novomexicana Wheelock","range alumroot"
"HEOB","Hedeoma oblongifolia (A. Gray) A. Heller","oblongleaf false pennyroyal"
"HEPA","Helianthella parryi A. Gray","Parry dwarf-sunflower"
"HEPE","Helianthus petiolaris Nutt.","prairie sunflower"
"HEQU2","Helianthella quinquenervis (Hook.) A. Gray","aspen dwarf-sunflower"
"HERIS","Herissantia Medik.","Herissantia"
"HERU","Heuchera rubescens Torr.","pink alumroot"
"HESA3","Heuchera sanguinea Engelm.","coralbells alumroot"
"HESPE11","Hesperostipa (Elias) Barkworth","Hesperostipa"
"HESPE3","Hesperocallis A. Gray","Hesperocallis"
"HESU3","Heterotheca subaxillaris (Lam.) Britton & Rusby","camphorweed"
"HETER6","Heteropogon Pers.","Heteropogon"
"HETER8","Heterotheca Cass.","Heterotheca"
"HEUCH","Heuchera L.","Heuchera"
"HEUN2","Hesperocallis undulata A. Gray","desert ajo lily"
"HEVI4","Heterotheca villosa (Pursh) Shinners","hairy false goldenaster"
"HIBE","Hilaria belangeri (Steud.) Nash","curly mesquite"
"HIBIS2","Hibiscus L.","Hibiscus"
"HICO","Hibiscus coulteri Harv. ex A. Gray","Coulter hibiscus"
"HIDE","Hibiscus denudatus Benth.","rock hibiscus"
"HIERA","Hieracium L.","Hieracium"
"HIFE","Hieracium fendleri Sch. Bip.","yellow hawkweed"
"HILAR","Hilaria Kunth","Hilaria"
"HIPR2","Hieracium pringlei A. Gray","Pringle hawkweed"
"HOAR","Hordeum arizonicum Covas","Arizona barley"
"HOBR2","Hordeum brachyantherum Nevski","meadow barley"
"HOFFM","Hoffmannseggia Cav.","Hoffmannseggia"
"HOGL2","Hoffmannseggia glauca (Ortega) Eifert","hogpotato"
"HOJU","Hordeum jubatum L.","foxtail barley"
"HORDE","Hordeum L.","Hordeum"
"HOUST","Houstonia L.","Houstonia"
"HOVU","Hordeum vulgare L."," common barley"
"HYAN2","Hypericum anagalloides Cham. & Schltdl.","tinker penny"
"HYBI2","Hymenoxys bigelovii (A. Gray) K.F. Parker","Bigelow rubberweed"
"HYCO2","Hymenoxys cooperi (A. Gray) Cockerell","Cooper rubberweed"
"HYEM","Hyptis emoryi Torr.","desert lavender"
"HYFI","Hymenopappus filifolius Hook.","yellow cutleaf"
"HYME","Hymenopappus mexicanus A. Gray","Mexican woollywhite"
"HYMEN3","Hymenoclea Torr. & A. Gray ex A. Gray","Hymenoclea"
"HYMEN4","Hymenopappus L'Hér.","Hymenopappus"
"HYMEN6","Hymenothrix A. Gray","Hymenothrix"
"HYMEN7","Hymenoxys Cass.","Hymenoxys"
"HYOD","Hymenoxys odorata DC.","poison rubberweed"
"HYPER","Hypericum L.","Hypericum"
"HYPTI","Hyptis Jacq.","Hyptis"
"HYRI","Hymenoxys richardsonii (Hook.) Cockerell","pingue rubberweed"
"HYSA","Hymenoclea salsola Torr. & A. Gray","white burrobrush"
"HYSC5","Hypericum scouleri Hook.","Scouler St. Johnswort"
"HYWR","Hymenothrix wrightii A. Gray","Wright thimblehead"
"INDIG","Indigofera L.","Indigofera"
"INSP","Indigofera sphaerocarpa A. Gray","Sonoran indigobush"
"IPAG","Ipomopsis aggregata (Pursh) V.E. Grant","scarlet skyrocket"
"IPAR2","Ipomopsis arizonica (Greene) Wherry","Arizona skyrocket"
"IPCR","Ipomoea cristulata Hallier f.","scarlet creeper morning glory"
"IPLO","Ipomoea longifolia Benth.","pinkthroat morning glory"
"IPLO2","Ipomopsis longiflora (Torr.) V.E. Grant","flaxflower skyrocket"
"IPMU3","Ipomopsis multiflora (Nutt.) V.E. Grant","manyflower skyrocket"
"IPOMO","Ipomoea L.","Ipomoea"
"IPOMO2","Ipomopsis Michx.","Ipomopsis"
"IPPL","Ipomoea plummerae A. Gray","Huachuca morning glory"
"IPPU2","Ipomoea purpurea (L.) Roth","tall morning glory"
"IRIS","Iris L.","Iris"
"IRMI","Iris missouriensis Nutt.","Rocky Mountain iris"
"ISOCO","Isocoma Nutt.","Isocoma"
"ISPL","Isocoma pluriflora (Torr. & A. Gray) Greene","jimmyweed"
"ISTE2","Isocoma tenuisecta Greene","burroweed"
"JACA2","Jatropha cardiophylla (Torr.) Müll. Arg.","sangre de cristo"
"JACU","Jatropha cuneata Wiggins & Rollins","limberbush"
"JAGR","Janusia gracilis A. Gray","slender janusia"
"JANUS","Janusia A. Juss.","Janusia"
"JATRO","Jatropha L.","Jatropha"
"JUAC2","Juncus acutus L.","spiny rush"
"JUAR4","Juncus articulatus L.","jointed rush"
"JUBA","Juncus balticus Willd.","Baltic rush"
"JUCA7","Juniperus californica Carričre","California juniper"
"JUCA8","Justicia californica (Benth.) D. Gibson","chuparosa"
"JUCA9","Justicia candicans (Nees) L.D. Benson","Jacobina"
"JUCO6","Juniperus communis L.","common juniper"
"JUDE2","Juniperus deppeana Steud.","alligator juniper"
"JUDR","Juncus drummondii E. Mey.","Drummond rush"
"JUEF","Juncus effusus L.","lamp rush"
"JUGLA","Juglans L.","Juglans"
"JUMA","Juglans major (Torr.) A. Heller","Arizona black walnut"
"JUMA4","Juncus marginatus Rostk.","grassleaf rush"
"JUME3","Juncus mertensianus Bong.","Mertens rush"
"JUMO","Juniperus monosperma (Engelm.) Sarg.","oneseed juniper"
"JUNCU","Juncus L.","Juncus"
"JUNE","Juncus nevadensis S. Watson","Nevada rush"
"JUNIP","Juniperus L.","Juniperus"
"JUOS","Juniperus osteosperma (Torr.) Little","Utah juniper"
"JUSC2","Juniperus scopulorum Sarg.","Rocky Mountain juniper"
"JUSTI","Justicia L.","Justicia"
"KACA","Kallstroemia californica (S. Watson) Vail","California caltrop"
"KAGR","Kallstroemia grandiflora Torr. ex A. Gray","orange caltrop"
"KALLS","Kallstroemia Scop.","Kallstroemia"
"KEAN","Keckiella antirrhinoides (Benth.) Straw","bush-penstemon"
"KECKI","Keckiella Straw","Keckiella"
"KOEBE","Koeberlinia Zucc.","Koeberlinia"
"KOELE","Koeleria Pers.","Koeleria"
"KOMA","Koeleria macrantha (Ledeb.) Schult.","prairie Junegrass"
"KOSP","Koeberlinia spinosa Zucc.","crown of thorns"
"KRAME","Krameria L.","Krameria"
"KRASC","Krascheninnikovia Guldenstaedt","Krascheninnikovia"
"KRER","Krameria erecta Willd. ex Schult.","range ratany"
"KRGR","Krameria grayi Rose & Painter","white ratany"
"KRLA","Krameria lanceolata Torr.","spreading ratany"
"KRLA2","Krascheninnikovia lanata (Pursh) A. Meeuse & Smit","winterfat"
"LAAC","Lantana achyranthifolia Desf.","brush lantana"
"LACTU","Lactuca L.","Lactuca"
"LAEU","Lathyrus eucosmus Butters & H. St. John","bush peavine"
"LAGL5","Layia glandulosa (Hook.) Hook. & Arn.","white tidytips"
"LAGR","Lactuca graminifolia Michx.","grassleaf lettuce"
"LAGR3","Lathyrus graminifolius (S. Watson) T.G. White","grassleaf peavine"
"LALA6","Lathyrus laetivirens Greene ex Rydb.","aspen peavine"
"LALU","Lactuca ludoviciana (Nutt.) Riddell","wild lettuce"
"LANTA","Lantana L.","Lantana"
"LAOC3","Lappula occidentalis (S. Watson) Greene","western sticktight"
"LAPPU","Lappula Moench","Lappula"
"LARRE","Larrea Cav.","Larrea"
"LASE","Lactuca serriola L.","prickly lettuce"
"LASQ","Lappula squarrosa (Retz.) Dumort.","bristly sticktight"
"LATHY","Lathyrus L.","Lathyrus"
"LATR2","Larrea tridentata (DC.) Coville","creosotebush"
"LAUR2","Lantana urticoides Hayek","western lantana"
"LAYIA","Layia Hook. & Arn. ex DC.","Layia"
"LEAR4","Lesquerella arizonica S. Watson","Arizona bladderpod"
"LIAU","Linanthus aureus (Nutt.) Greene","golden desert trumpets"
"LEBR","Lewisia brachycalyx Engelm. ex A. Gray","shortsepal bitterroot"
"LECI4","Leymus cinereus (Scribn. & Merr.) A. Löve","basin wildrye"
"LEDE","Lepidium densiflorum Schrad.","common pepperweed"
"LEDU","Leptochloa dubia (Kunth) Nees","green sprangletop"
"LEFE","Lesquerella fendleri (A. Gray) S. Watson","Fendler bladderpod"
"LEFR2","Lepidium fremontii S. Watson","desert pepperweed"
"LEFU21","Leptochloa fusca (L.) Kunth","Mexican sprangletop"
"LEGO","Lesquerella gordonii (A. Gray) S. Watson","Gordon bladderpod"
"LEGO2","Lesquerella gooddingii Rollins & Shaw","Goodding bladderpod"
"LELA2","Lepidium latifolium L.","broadleaf pepperweed"
"LELE10","Leucaena leucocephala (Lam.) de Wit","white leadtree"
"LEMO2","Lepidium montanum Nutt.","narrowleaf pepperweed"
"LINU3","Linanthus nuttallii (A. Gray) Greene ex Milliken","Nuttall desert trumpets"
"LEPA6","Leptochloa panicea (Retz.) Ohwi","red sprangletop"
"LEPID","Lepidium L.","Lepidium"
"LEPTO","Leptochloa P. Beauv.","Leptochloa"
"LEPU2","Lesquerella purpurea (A. Gray) S. Watson","purple bladderpod"
"LEPY2","Lewisia pygmaea (A. Gray) B.L. Rob.","alpine bitterroot"
"LESQU","Lesquerella S. Watson","Lesquerella"
"LETH2","Lepidium thurberi Woot.","Thurber pepperweed"
"LETR5","Leymus triticoides (Buckley) Pilg.","beardless wildrye"
"LEUCA","Leucaena Benth.","Leucaena"
"LEUCA4","Leucanthemum Mill.","Leucanthemum"
"LEVI3","Lepidium virginicum L.","poorman pepperweed"
"LEVU","Leucanthemum vulgare Lam.","oxeye daisy"
"LEWIS","Lewisia Pursh","Lewisia"
"LEYMU","Leymus Hochst.","Leymus"
"LIBO3","Linnaea borealis L.","twinflower"
"LICO7","Lithospermum cobrense Greene","smooth puccoon"
"LIDA","Linaria dalmatica (L.) Mill.","Dalmatian toadflax"
"LIDE2","Linanthus demissus (A. Gray) Greene","desert snow"
"GIFI2","Gilia filiformis Parry ex A. Gray","yellow gilia"
"LIGUS","Ligusticum L.","Ligusticum"
"LIIN2","Lithospermum incisum Lehm.","narrowleaf puccoon"
"LILE3","Linum lewisii Pursh","Lewis blue flax"
"LIMU3","Lithospermum multiflorum Torr. ex A. Gray","manyflower puccoon"
"LINAN2","Linanthus Benth.","Linanthus"
"LINAR","Linaria Mill.","Linaria"
"LINE","Linum neomexicanum Greene","New Mexico yellow flax"
"LINNA","Linnaea L.","Linnaea"
"LINUM","Linum L.","Linum"
"LIPO","Ligusticum porteri J.M. Coult. & Rose","Porter licoriceroot"
"LIPU4","Linum puberulum (Engelm.) A. Heller","orange flax"
"LITHO3","Lithospermum L.","Lithospermum"
"LIVU2","Linaria vulgaris Mill.","yellow toadflax"
"LOAN","Lobelia anatina E. Wimm.","Apache lobelia"
"LOAR","Lonicera arizonica Rehder","Arizona honeysuckle"
"LOBEL","Lobelia L.","Lobelia"
"LOBUL","Lobularia Desv.","Lobularia"
"LOCA2","Lobelia cardinalis L.","cardinal flower lobelia"
"LOCO6","Lotus corniculatus L.","garden deervetch"
"LODI","Lomatium dissectum (Nutt.) Mathias & Constance","carrotleaf desertparsley"
"LOFO","Lomatium foeniculaceum (Nutt.) J.M. Coult. & Rose","desert desertparsley"
"LOGR4","Lotus greenei Ottley ex Kearney & Peebles","Greene deervetch"
"LOIN4","Lonicera interrupta Benth.","chaparral honeysuckle"
"LOIN5","Lonicera involucrata (Richardson) Banks ex Spreng.","black twinberry honeysuckle"
"LOLIU","Lolium L.","Lolium"
"LOMA","Lobularia maritima (L.) Desv.","sweet alyssum"
"LOMAT","Lomatium Raf.","Lomatium"
"LONE","Lomatium nevadense (S. Watson) J.M. Coult. & Rose","Nevada desertparsley"
"LONIC","Lonicera L.","Lonicera"
"LOPE","Lolium perenne L.","perennial ryegrass"
"LORI3","Lotus rigidus (Benth.) Greene","red and yellow deervetch"
"LOSA","Lotus salsuginosus Greene","maresfat"
"LOST4","Lotus strigosus (Nutt.) Greene","hairy deervetch"
"LOTUS","Lotus L.","Lotus"
"LOUN","Lotus unifoliolatus (Hook.) Benth.","American deervetch"
"LOUT2","Lonicera utahensis S. Watson","Utah honeysuckle"
"LOWR","Lotus wrightii (A. Gray) Greene","Wright deervetch"
"LUAR3","Lupinus argenteus Pursh","silvery lupine"
"LUAR4","Lupinus arizonicus (S. Watson) S. Watson","Arizona lupine"
"LUAR7","Lupinus aridus Douglas","desert lupine"
"LUCA","Lupinus caudatus Kellogg","tailcup lupine"
"LUCO","Lupinus concinnus J. Agardh","bajada lupine"
"LUHI2","Lupinus hillii Greene","Hill lupine"
"LULA4","Lupinus latifolius Lindl. ex J. Agardh","broadleaf lupine"
"LUPA3","Lupinus palmeri S. Watson","Palmer lupine"
"LUPIN","Lupinus L.","Lupinus"
"LUSE4","Lupinus sericeus Pursh","silky lupine"
"LUSP2","Lupinus sparsiflorus Benth.","Mojave lupine"
"LYAN","Lycium andersonii A. Gray","Anderson wolfberry"
"LYAN2","Lycopodium annotinum L.","stiff clubmoss"
"LYBE","Lycium berlandieri Dunal","Berlandier wolfberry"
"LYCIU","Lycium L.","Lycium"
"LYCOP2","Lycopodium L.","Lycopodium"
"LYCUR","Lycurus Kunth","Lycurus"
"LYFR","Lycium fremontii A. Gray","Fremont wolfberry"
"LYGOD","Lygodesmia D. Don","Lygodesmia"
"LYGR","Lygodesmia grandiflora (Nutt.) Torr. & A. Gray","largeflower skeletonplant"
"LYMA","Lycium macrodon A. Gray","desert wolfberry"
"LYPA","Lycium pallidum Miers","pale wolfberry"
"LYSE3","Lycurus setosus (Nutt.) C.G. Reeder","bristly wolftail"
"LYSIL","Lysiloma Benth.","Lysiloma"
"LYWA","Lysiloma watsonii Rose","Watson lysiloma"
"MABI2","Malvastrum bicuspidatum (S. Watson) Rose","shrubby false mallow"
"MACA2","Machaeranthera canescens (Pursh) A. Gray","purple tansyaster"
"MACHA","Machaeranthera Nees","Machaeranthera"
"MACO3","Malacothrix coulteri Harv. & A. Gray","snakehead desert-dandelion"
"MACRO","Macromeria D. Don","Macromeria"
"MAFE","Malacothrix fendleri A. Gray","Fendler desert-dandelion"
"MAFR3","Mahonia fremontii (Torr.) Fedde","Fremont barberry"
"MAGL3","Malacothrix glabrata (A. Gray ex D.C. Eaton) A. Gray","smooth desert-dandelion"
"MAGR10","Machaeranthera gracilis (Nutt.) Shinners","slender tansyaster"
"MAGR2","Machaeranthera grindelioides (Nutt.) Shinners","rayless tansyaster"
"MAGR9","Mammillaria grahamii Engelm.","fishhook pincushion cactus"
"MAHON","Mahonia Nutt.","Mahonia"
"MALAC3","Malacothrix DC.","Malacothrix"
"MALVA","Malva L.","Malva"
"MALVA2","Malvastrum A. Gray","Malvastrum"
"MAMMI","Mammillaria Haw.","Mammillaria"
"MANE","Malva neglecta Wallr.","common mallow"
"MAPA5","Malva parviflora L.","cheeseweed mallow"
"MAPI","Machaeranthera pinnatifida (Hook.) Shinners","spiny tansyaster"
"MARRU","Marrubium L.","Marrubium"
"MASO","Malacothrix sonchoides (Nutt.) Torr. & A. Gray","yellow desert-dandelion"
"MASO6","Malacothrix sonorae W.S. Davis & P.H. Raven","Sonoran desert-dandelion"
"MATA2","Machaeranthera tanacetifolia (Kunth) Nees","Tahoka tansyaster"
"MATH","Mammillaria thornberi Orcutt","little fishhook cactus"
"MATO2","Malacothrix torreyi A. Gray","Mojave desert-dandelion"
"MATR3","Mahonia trifoliolata (Moric.) Fedde","algerita barberry"
"MAVI","Macromeria viridiflora DC.","giant trumpets"
"MAVU","Marrubium vulgare L.","white horehound"
"MAWR2","Mammillaria wrightii Engelm.","largefruit fishhook cactus"
"MEAL6","Mentzelia albicaulis (Hook.) Torr. & A. Gray","whitestem stickleaf"
"MEAS","Mentzelia aspera L.","tropical stickleaf"
"MEAZ","Melia azedarach L.","Chinaberry tree"
"MEDE5","Mentzelia desertorum (Davidson) H.J. Thomp. & Roberts","desert stickleaf"
"MEDIC","Medicago L.","Medicago"
"MEFR","Melica frutescens Scribn.","woody melicgrass"
"MEFR2","Mertensia franciscana A. Heller","Franciscan bluebells"
"MEIN2","Melilotus indicus (L.) All.","Indian sweetclover"
"MEIN5","Mentzelia involucrata S. Watson","whitebract stickleaf"
"MELAM","Melampodium L.","Melampodium"
"MELE2","Melampodium leucanthum Torr. & A. Gray","plains blackfoot daisy"
"MELIA","Melia L.","Melia"
"MELIC","Melica L.","Melica"
"MELIL","Melilotus Mill.","Melilotus"
"MELIN","Melinis P. Beauv.","Melinis"
"MELU","Medicago lupulina L.","black medic"
"MEMA2","Mertensia macdougalii A. Heller","Macdougal bluebells"
"MEMI","Medicago minima (L.) L.","bur medic"
"MEMU3","Mentzelia multiflora (Nutt.) A. Gray","Adonis stickleaf"
"MENI2","Mentzelia nitens Greene","shining stickleaf"
"MENOD","Menodora Bonpl.","Menodora"
"MENTZ","Mentzelia L.","Mentzelia"
"MENU","Mentzelia nuda (Pursh) Torr. & A. Gray","bractless stickleaf"
"MEOF","Melilotus officinalis (L.) Lam.","yellow sweetclover"
"MEPO","Melica porteri Scribn.","Porter melicgrass"
"MEPO3","Medicago polymorpha L.","burclover"
"MEPU3","Mentzelia pumila Nutt. ex Torr. & A. Gray","golden stickleaf"
"MERE9","Melinis repens (Willd.) Zizka","natal grass"
"MERTE","Mertensia Roth","Mertensia"
"MESA","Medicago sativa L.","alfalfa"
"MESC","Menodora scabra A. Gray","rough menodora"
"MESP2","Menodora spinescens A. Gray","spiny menodora"
"MIAC3","Mimosa aculeaticarpa Ortega","wait-a-bit"
"MIACB","Mimosa aculeaticarpa Ortega var. biuncifera (Benth.) Barneby","wait-a-bit"
"MIBI6","Mimulus bigelovii (A. Gray) A. Gray","yellowthroat monkeyflower"
"MICA3","Mimulus cardinalis Douglas ex Benth.","crimson monkeyflower"
"MICO15","Mirabilis comata (Small) Standl.","tufted four o'clock"
"MICO7","Mirabilis coccinea (Torr.) Benth. & Hook. f.","scarlet four o'clock"
"MIDE4","Mimulus dentilobus B.L. Rob. & Fernald","toothpetal monkeyflower"
"MIDY","Mimosa dysocarpa Benth.","velvetpod mimosa"
"MIGL","Mimulus glabratus Kunth","roundleaf monkeyflower"
"PHGR16","Phlox gracilis (Hook.) Greene","slender phlox"
"MIGU","Mimulus guttatus DC.","seep yellow monkeyflower"
"MIBI8","Mirabilis bigelovii A. Gray","wishbone four o'clock"
"MILI3","Mirabilis linearis (Pursh) Heimerl","narrowleaf four o'clock"
"MILO2","Mirabilis longiflora L.","longtube four o'clock"
"MIMOS","Mimosa L.","Mimosa"
"MIMU","Mirabilis multiflora (Torr.) A. Gray","Colorado four o'clock"
"MIMUL","Mimulus L.","Mimulus"
"MIOX","Mirabilis oxybaphoides (A. Gray) A. Gray","smooth spreading four o'clock"
"MIPR","Mimulus primuloides Benth.","primrose monkeyflower"
"MIRAB","Mirabilis L.","Mirabilis"
"MOBE","Monoptilon bellidiforme Torr. & A. Gray ex A. Gray","daisy desertstar"
"MOBE2","Monoptilon bellioides (A. Gray) H.M. Hall","Mojave desertstar"
"MOCH","Montia chamissoi (Ledeb. ex Spreng.) Greene","water miner's-lettuce"
"MOCO","Mohavea confertiflora (A. DC.) A. Heller","ghost flower"
"MOHAV","Mohavea A. Gray","Mohavea"
"MOMI","Morus microphylla Buckley","Texas mulberry"
"MONAR","Monarda L.","Monarda"
"MONOL","Monolepis Schrad.","Monolepis"
"MONOP","Monoptilon Torr. & A. Gray","Monoptilon"
"MONRO","Monroa Torr.","Monroa"
"MONTI","Montia L.","Montia"
"MONU","Monolepis nuttalliana (Schult.) Greene","patota"
"MOPE","Monarda pectinata Nutt.","pony beebalm"
"MORTO","Mortonia A. Gray","Mortonia"
"MORUS","Morus L.","Morus"
"MOSC","Mortonia scabrella A. Gray","saddlebush"
"MOSQ","Monroa squarrosa (Nutt.) Torr.","false buffalograss"
"MUAS","Muhlenbergia asperifolia (Nees & Meyen ex Trin.) Parodi","alkali muhly"
"MUDU3","Muhlenbergia dumosa Scribn. ex Vasey","bamboo muhly"
"MUEM","Muhlenbergia emersleyi Vasey","bullgrass"
"MUHLE","Muhlenbergia Schreb.","Muhlenbergia"
"MUMO","Muhlenbergia montana (Nutt.) Hitchc.","mountain muhly"
"MUPA2","Muhlenbergia pauciflora Buckley","New Mexico muhly"
"MUPO2","Muhlenbergia porteri Scribn. ex Beal","bush muhly"
"MUPU2","Muhlenbergia pungens Thurb.","sandhill muhly"
"MURE","Muhlenbergia repens (J. Presl) Hitchc.","creeping muhly"
"MURI","Muhlenbergia richardsonis (Trin.) Rydb.","mat muhly"
"MURI2","Muhlenbergia rigens (Benth.) Hitchc.","deergrass"
"MUTE4","Muhlenbergia tenuifolia (Kunth) Trin.","mesa muhly"
"MUTO2","Muhlenbergia torreyi (Kunth) Hitchc. ex Bush","ring muhly"
"MUUT","Muhlenbergia utilis (Torr.) Hitchc.","aparejo muhly"
"MUWR","Muhlenbergia wrightii Vasey ex J.M. Coult.","spike muhly"
"NADE","Nama demissum A. Gray","purplemat nama"
"NAHI","Nama hispidum A. Gray","purple nama"
"NAMA4","Nama L.","Nama"
"NASSE","Nassella (Trin.) Desv.","Nassella"
"NAVI4","Nassella viridula (Trin.) Barkworth","green needlegrass"
"NEGL","Nemacladus glanduliferus Jeps.","glandular threadplant"
"NEMAC2","Nemacladus Nutt.","Nemacladus"
"NERU","Nemacladus rubescens Greene","desert threadplant"
"NICOT","Nicotiana L.","Nicotiana"
"NIGL","Nicotiana glauca Graham","tree tobacco"
"NIOB","Nicotiana obtusifolia M. Martens & Galeotti","desert tobacco"
"NOBI","Nolina bigelovii (Torr.) S. Watson","Bigelow sacahuista"
"NOLIN","Nolina Michx.","Nolina"
"NOMI","Nolina microcarpa S. Watson","sacahuista"
"THMO5","Thlaspi montanum L.","wild candytuft"
"NOPA","Nolina parryi S. Watson","Parry sacahuista"
"NOTE","Nolina texana S. Watson","Texas sacahuista"
"OEAL","Oenothera albicaulis Pursh","whitestem evening-primrose"
"OECA10","Oenothera caespitosa Nutt.","tufted evening-primrose"
"OEDE2","Oenothera deltoides Torr. & Frém.","dune evening-primrose"
"OEEL","Oenothera elata Kunth","Hooker evening-primrose"
"OENE","Oenothera neomexicana (Small) Munz","New Mexico evening-primrose"
"OENOT","Oenothera L.","Oenothera"
"OEPA","Oenothera pallida Lindl.","pale evening-primrose"
"OEPR","Oenothera primiveris A. Gray","spring evening-primrose"
"OLNEY","Olneya A. Gray","Olneya"
"OLTE","Olneya tesota A. Gray","ironwood"
"ONAC","Onopordum acanthium L.","Scotch thistle"
"ONOPO","Onopordum L.","Onopordum"
"OPEN3","Opuntia engelmannii Salm-Dyck ex Engelm.","Engelmann pricklypear"
"OPFI","Opuntia ficus-indica (L.) Mill.","Indian-fig pricklypear"
"OPFR","Opuntia fragilis (Nutt.) Haw.","brittle pricklypear"
"OPGO","Opuntia gosseliniana F.A.C. Weber","violet pricklypear"
"OPMA8","Opuntia macrocentra Engelm.","purple pricklypear"
"OPPH","Opuntia phaeacantha Engelm.","tulip pricklypear"
"OPPO","Opuntia polyacantha Haw.","plains pricklypear"
"OPSA","Opuntia santa-rita (Griffiths & Hare) Rose","Santa Rita pricklypear"
"OPUNT","Opuntia Mill.","Opuntia"
"ORCO4","Orobanche cooperi (A. Gray) A. Heller","desert broomrape"
"ORFA","Orobanche fasciculata Nutt.","clustered broomrape"
"ORLU","Orobanche ludoviciana Nutt.","sand broomrape"
"ORLU2","Orthocarpus luteus Nutt.","yellow owlclover"
"OROBA","Orobanche L.","Orobanche"
"ORPU2","Orthocarpus purpureoalbus A. Gray ex S. Watson","purple-white owlclover"
"ORTHO","Orthocarpus Nutt.","Orthocarpus"
"OXAL","Oxalis albicans Kunth","radish root woodsorrel"
"OXALI","Oxalis L.","Oxalis"
"OXCO","Oxalis corniculata L.","creeping woodsorrel"
"OXDE4","Oxalis decaphylla Kunth","tenleaf woodsorrel"
"OXDI3","Oxyria digyna (L.) Hill","mountain sorrel"
"OXLA3","Oxytropis lambertii Pursh","purple locoweed"
"OXOR2","Oxytropis oreophila A. Gray","mountain locoweed"
"OXYRI","Oxyria Hill","Oxyria"
"OXYTR","Oxytropis DC.","Oxytropis"
"PAAC3","Parkinsonia aculeata L.","Mexican palo verde"
"PAAN4","Panicum antidotale Retz.","blue panicgrass"
"PAAR8","Palafoxia arida B.L. Turner & Morris","desert needles"
"PABI2","Pappophorum bicolor Fourn.","pink pappusgrass"
"PABU","Panicum bulbosum Kunth","bulb panicgrass"
"PACHY4","Pachycereus (A. Berger) Britton & Rose","Pachycereus"
"PACO11","Parthenium confertum A. Gray","Gray mariola"
"PADI3","Paspalum dilatatum Poir.","dallis grass"
"PADI6","Paspalum distichum L.","knotroot paspalum"
"PAFI4","Parryella filifolia Torr. & A. Gray ex A. Gray","dune broom"
"PAFL6","Parkinsonia florida (Benth. ex A. Gray) S. Watson","blue palo verde"
"PAHA","Panicum hallii Vasey","Hall panicgrass"
"PAHI5","Panicum hirticaule J. Presl","Mexican panicgrass"
"PAIN2","Parthenium incanum Kunth","mariola"
"PALAF","Palafoxia Lag.","Palafoxia"
"PAME2","Passiflora mexicana Juss.","Mexican passionflower"
"PAMI5","Parkinsonia microphylla Torr.","foothill palo verde"
"PANIC","Panicum L.","Panicum"
"PAOB","Panicum obtusum Kunth","vine mesquite"
"PAPPO","Pappophorum Schreb.","Pappophorum"
"PARKI2","Parkinsonia L.","Parkinsonia"
"PARRY2","Parryella Torr. & A. Gray ex A. Gray","Parryella"
"PARTH2","Parthenium L.","Parthenium"
"PARTH3","Parthenocissus Planch.","Parthenocissus"
"PASC14","Pachycereus schottii (Engelm.) D.R. Hunt","senita cactus"
"PASCO","Pascopyrum A. Löve","Pascopyrum"
"PASM","Pascopyrum smithii (Rydb.) A. Löve","western wheatgrass"
"PASPA2","Paspalum L.","Paspalum"
"PASSI","Passiflora L.","Passiflora"
"PAVA2","Pappophorum vaginatum Buckley","Pima pappusgrass"
"PAVI2","Panicum virgatum L.","switchgrass"
"PAVI5","Parthenocissus vitacea (Knerr) Hitchc.","Virginia creeper"
"PEAM","Penstemon ambiguus Torr.","gilia penstemon"
"PEAN","Pectis angustifolia Torr.","lemon cinchweed"
"PEBA2","Penstemon barbatus (Cav.) Roth","beardlip penstemon"
"PECA12","Petrophytum caespitosum (Nutt.) Rydb.","mat rockspirea"
"PECI","Pennisetum ciliare (L.) Link","buffelgrass"
"PECTI","Pectis L.","Pectis"
"PECTO","Pectocarya DC. ex Meisn.","Pectocarya"
"PECY","Pectis cylindrica (Fernald) Rydb.","Sonoran cinchweed"
"PEDI10","Penstemon distans N.H. Holmgren","Mt. Tumbull penstemon"
"PEDI6","Penstemon discolor D.D. Keck","Cataiina penstemon"
"PEDIO","Pediocactus Britton & Rose","Pediocactus"
"PEEA","Penstemon eatonii A. Gray","Eaton penstemon"
"PEEM","Perityle emoryi Torr.","Emory rockdaisy"
"PEGA3","Perideridia gairdneri (Hook. & Arn.) Mathias","common yampah"
"PEGAN","Peganum L.","Peganum"
"PEGR3","Peniocereus greggii (Engelm.) Britton & Rose","Gregg nightblooming cereus"
"PEHA","Peganum harmala L.","African rue"
"PEHE","Pectocarya heterocarpa (I.M. Johnst.) I.M. Johnst.","chuckwalla combbur"
"PEIN4","Pentzia incana (Thunb.) Kuntze","karoobush"
"PELE11","Perityle lemmonii (A. Gray) J.F. Macbr.","Lemmon rockdaisy"
"PELI2","Penstemon linarioides A. Gray","narrowleaf penstemon"
"PELO","Pectis longipes A. Gray","mat cinchweed"
"PENIO","Peniocereus (A. Berger) Britton & Rose","Peniocereus"
"PENNI","Pennisetum Rich. ex Pers.","Pennisetum"
"PENST","Penstemon Schmidel","Penstemon"
"PENTZ","Pentzia Thunb.","Pentzia"
"PEPA13","Petalonyx parryi A. Gray","Parry sandpaper plant"
"PEPA2","Pectis papposa Harv. & A. Gray","manybristle cinchweed"
"PEPA21","Perideridia parishii (J.M. Coult. & Rose) A. Nelson & J.F. Macbr.","Parish yampah"
"PEPA24","Penstemon parryi (A. Gray) A. Gray","Parry penstemon"
"PEPA5","Pediocactus paradinei B.W. Benson","Kaibab pediocactus"
"PEPA8","Penstemon palmeri A. Gray","Palmer penstemon"
"PEPE8","Pediocactus peeblesianus (Croizat) L.D. Benson","Peebles pediocactus"
"PEPL","Pectocarya platycarpa (Munz & I.M. Johnst.) Munz & I.M. Johnst.","broadnut combbur"
"PEPR","Pectis prostrata Cav.","spreading cinchweed"
"PEPS","Penstemon pseudospectabilis M.E. Jones","desert penstemon"
"PERE","Pectocarya recurvata I.M. Johnst.","desert combbur"
"PERID","Perideridia Rchb.","Perideridia"
"PERIT","Perityle Benth.","Perityle"
"PESC4","Peucephyllum schottii A. Gray","pygmy-cedar"
"PESE3","Pennisetum setaceum (Forssk.) Chiov.","fountain grass"
"PESI","Pediocactus simpsonii (Engelm.) Britton & Rose","snowball pediocactus"
"PEST2","Penstemon strictus Benth.","Rocky Mountain penstemon"
"PESU8","Penstemon superbus A. Nelson","superb penstemon"
"PETAL","Petalonyx A. Gray","Petalonyx"
"PETH4","Petalonyx thurberi A. Gray","Thurber sandpaper plant"
"PETRO2","Petrophyton Rydb., orth. var.","Petrophyton"
"PEUCE2","Peucephyllum A. Gray","Peucephyllum"
"PEVI4","Penstemon virgatus A. Gray","upright blue penstemon"
"PEWH","Penstemon whippleanus A. Gray","dark purple penstemon"
"PHAC6","Physalis acutifolia (Miers) Sandw.","Wright groundcherry"
"PHACE","Phacelia Juss.","Phacelia"
"PHALA2","Phalaris L.","Phalaris"
"PHAM4","Phytolacca americana L.","American pokeweed"
"PHAN3","Phaseolus angustissimus A. Gray","narrowleaf bean"
"PHAR3","Phalaris arundinacea L.","reed canarygrass"
"PHASE","Phaseolus L.","Phaseolus"
"TAAU","Talinum aurantiacum Engelm.","orange talinum"
"PHAU3","Phlox austromontana Coville","desert mountain phlox"
"PHAU7","Phragmites australis (Cav.) Trin. ex Steud.","common reed"
"TABR","Talinum brevifolium Torr.","pygmy talinum"
"PHCA12","Phoradendron capitellatum Torr. ex Trel.","woolly mistletoe"
"PHCA17","Physalis caudella Standl.","southwestern groundcherry"
"PHCA6","Phalaris caroliniana Walter","Carolina canarygrass"
"PHCA8","Phoradendron californicum Nutt.","mesquite mistletoe"
"PHCA43","Phacelia caerulea Greene, orth. var.","sky blue scorpionweed"
"PHCO14","Phoradendron coryae Trel.","Cory mistletoe"
"PHCR","Phacelia crenulata Torr. ex S. Watson","notchleaf scorpionweed"
"PHCR4","Physalis crassifolia Benth.","thickleaf groundcherry"
"PHDI","Phacelia distans Benth.","blue scorpionweed"
"PHHE2","Phacelia heterophylla Pursh","varileaf scorpionweed"
"PHJU","Phoradendron juniperinum Engelm. ex A. Gray","juniper mistletoe"
"PHLEU","Phleum L.","Phleum"
"PHLO4","Physalis longifolia Nutt.","longleaf groundcherry"
"PHLOX","Phlox L.","Phlox"
"PHNE","Phacelia neglecta M.E. Jones","alkali scorpionweed"
"PHORA","Phoradendron Nutt.","Phoradendron"
"PHPA3","Phacelia parryi Torr.","Parry scorpionweed"
"PHPH2","Physalis philadelphica Lam.","Mexican groundcherry"
"PHPR3","Phleum pratense L.","timothy"
"PHPU","Phacelia pulchella A. Gray","beautiful scorpionweed"
"PHPU7","Physalis pubescens L.","hairy groundcherry"
"PHRA2","Phacelia ramosissima Douglas ex Lehm.","branched scorpionweed"
"PHRAG","Phragmites Adans.","Phragmites"
"PHSP","Phlox speciosa Pursh","showy phlox"
"PHTE6","Phlox tenuifolia E.E. Nelson","vine phlox"
"PHVI10","Phlox viridis E.E. Nelson","green phlox"
"PHYSA","Physalis L.","Physalis"
"PHYTO","Phytolacca L.","Phytolacca"
"PICA14","Pisonia capitata (S. Watson) Standl.","Mexican devilsclaws"
"PICEA","Picea A. Dietr.","Picea"
"PIDI3","Pinus discolor D.K. Bailey & Hawksw.","border pinyon"
"PIED","Pinus edulis Engelm.","Colorado pinyon"
"PIEN","Picea engelmannii Parry ex Engelm.","Engelmann spruce"
"PIEN2","Pinus engelmannii Carričre","Apache pine"
"PIFI","Piptochaetium fimbriatum (Kunth) Hitchc.","pinyon ricegrass"
"PIFL2","Pinus flexilis James","limber pine"
"PILEC","Pinus leiophylla Schiede & Deppe var. chihuahuana (Engelm.) Shaw","Chihuahuan pine"
"PIMI7","Piptatherum micranthum (Trin. & Rupr.) Barkworth","littleseed ricegrass"
"PIMO","Pinus monophylla Torr. & Frém.","singleleaf pinyon"
"PINUS","Pinus L.","Pinus"
"PIPO","Pinus ponderosa C. Lawson","ponderosa pine"
"PIPTA2","Piptatherum P. Beauv.","Piptatherum"
"PIPTO","Piptochaetium J. Presl","Piptochaetium"
"PIPU","Picea pungens Engelm.","blue spruce"
"PISON","Pisonia L.","Pisonia"
"PIST3","Pinus strobiformis Engelm.","southwestern white pine"
"PLAGI","Plagiobothrys Fisch. & C.A. Mey.","Plagiobothrys"
"PLANT","Plantago L.","Plantago"
"PLAR","Plagiobothrys arizonicus (A. Gray) Greene ex A. Gray","lipstick plant"
"PLATA","Platanus L.","Platanus"
"PLCO13","Plagiobothrys collinus (Phil.) I.M. Johnst.","Cooper popcornflower"
"PLEUR12","Pleuraphis Torr.","Pleuraphis"
"PLJA","Pleuraphis jamesii Torr.","galleta"
"PLJO","Plagiobothrys jonesii A. Gray","Mojave popcornflower"
"PLMA2","Plantago major L.","great Indianwheat"
"PLMU3","Pleuraphis mutica Buckley","tobosa"
"PLOD","Pluchea odorata (L.) Cass.","sweetscent"
"PLOV","Plantago ovata Forssk.","desert Indianwheat"
"PLPA2","Plantago patagonica Jacq.","woolly Indianwheat"
"PLPR3","Plagiobothrys pringlei Greene","Pringle popcornflower"
"PLRI3","Pleuraphis rigida Thurb.","big galleta"
"PLSE","Pluchea sericea (Nutt.) Coville","arrowweed"
"PLUCH","Pluchea Cass.","Pluchea"
"PLWR2","Platanus wrightii S. Watson","Arizona sycamore"
"POA","Poa L.","Poa"
"POAM8","Polygonum amphibium L.","water knotweed"
"POAN3","Populus angustifolia James","narrowleaf cottonwood"
"POAR5","Polygonum argyrocoleon Steud. ex Kunze","silversheath knotweed"
"POAR7","Potentilla arguta Pursh","tall cinquefoil"
"POBI6","Polygonum bistortoides Pursh","American knotweed"
"POBU","Poa bulbosa L.","bulbous bluegrass"
"PODI2","Potentilla diversifolia Lehm.","varileaf cinquefoil"
"PODO3","Polanisia dodecandra (L.) DC.","roughseed clammyweed"
"POFE","Poa fendleriana (Steud.) Vasey","muttongrass"
"POFEF","Poa fendleriana (Steud.) Vasey ssp. fendleriana","longtongue muttongrass"
"POFO","Polemonium foliosissimum A. Gray","towering Jacob's-ladder"
"POFR2","Populus fremontii S. Watson","Fremont cottonwood"
"POGL9","Potentilla glandulosa Lindl.","sticky cinquefoil"
"POGR5","Porophyllum gracile Benth.","yerba de venado"
"POIN3","Poliomintha incana (Torr.) A. Gray","rosemary mint"
"POIN7","Polypogon interruptus Kunth","ditch rabbitsfoot grass"
"POLAN","Polanisia Raf.","Polanisia"
"POLEM","Polemonium L.","Polemonium"
"POLIO","Poliomintha A. Gray","Poliomintha"
"POLYG4","Polygonum L.","Polygonum"
"POLYP2","Polypogon Desf.","Polypogon"
"POMO5","Polypogon monspeliensis (L.) Desf.","annual rabbitsfoot grass"
"POOL","Portulaca oleracea L.","common purslane"
"POPA20","Polemonium pauciflorum S. Watson","fewflower Jacob's-ladder"
"POPE3","Polygonum persicaria L.","ladysthumb knotweed"
"POPO4","Polygonum polygaloides Wall. ex Meisn.","whitemargin knotweed"
"POPR","Poa pratensis L.","Kentucky bluegrass"
"POPU5","Polygonum punctatum Elliot","dotted knotweed"
"POPU9","Potentilla pulcherrima Lehm.","soft cinquefoil"
"POPUL","Populus L.","Populus"
"PORA3","Polygonum ramosissimum Michx.","yellowflower knotweed"
"POROP","Porophyllum Adans.","Porophyllum"
"PORTU","Portulaca L.","Portulaca"
"POSE","Poa secunda J. Presl","Sandberg bluegrass"
"POSU6","Potentilla subviscosa Greene","clubleaf cinquefoil"
"POTEN","Potentilla L.","Potentilla"
"POTH2","Potentilla thurberi A. Gray","scarlet cinquefoil"
"POTR5","Populus tremuloides Michx.","quaking aspen"
"PRAL4","Proboscidea althaeifolia (Benth.) Decne.","straighttube devilsclaw"
"PRFA","Prunus fasciculata (Torr.) A. Gray","desert almond"
"PRGL2","Prosopis glandulosa Torr.","honey mesquite"
"PRIMU","Primula L.","Primula"
"PROBO","Proboscidea Schmidel","Proboscidea"
"PROSO","Prosopis L.","Prosopis"
"PRPA","Primula parryi A. Gray","brook primrose"
"PRPA2","Proboscidea parviflora (Woot.) Woot. & Standl.","annual devilsclaw"
"PRPU","Prosopis pubescens Benth.","screwbean mesquite"
"PRSE2","Prunus serotina Ehrh.","southwestern chokecherry"
"PRUNU","Prunus L.","Prunus"
"PRVE","Prosopis velutina Woot.","velvet mesquite"
"PRVI","Prunus virginiana L.","common chokecherry"
"PSAR12","Pseudognaphalium arizonicum (A. Gray) Anderb.","Arizona cudweed"
"PSAR4","Psorothamnus arborescens (Torr. ex A. Gray) Barneby","Mojave indigobush"
"PSAS2","Psilactis asteroides A. Gray","New Mexico tansyaster"
"PSATH2","Psathyrostachys Nevski","Psathyrostachys"
"PSCO2","Psilostrophe cooperi (A. Gray) Greene","whitestem paperflower"
"PSEUD22","Pseudoroegneria (Nevski) A. Löve","Pseudoroegneria"
"PSEUD43","Pseudognaphalium Kirp.","Pseudognaphalium"
"PSEUD7","Pseudotsuga Carričre","Pseudotsuga"
"PSFR","Psorothamnus fremontii (Torr. ex A. Gray) Barneby","Fremont indigobush"
"PSGE","Psilactis gentryi (Standl.) D. Morgan","Mexican tansyaster"
"PSILA2","Psilactis A. Gray","Psilactis"
"PSILO3","Psilostrophe DC.","Psilostrophe"
"PSJU3","Psathyrostachys juncea (Fisch.) Nevski","Russian wildrye"
"PSME","Pseudotsuga menziesii (Mirb.) Franco","Douglas-fir"
"PSORO","Psorothamnus Rydb.","Psorothamnus"
"PSSP3","Psorothamnus spinosus (A. Gray) Barneby","smoketree"
"PSSP6","Pseudoroegneria spicata (Pursh) A. Löve","bluebunch wheatgrass"
"PTAN2","Pterospora andromedea Nutt.","woodland pinedrops"
"PTAQ","Pteridium aquilinum (L.) Kuhn","western brackenfern"
"PTELE","Ptelea L.","Ptelea"
"PTERI","Pteridium Gleditsch ex Scop.","Pteridium"
"PTERO3","Pterospora Nutt.","Pterospora"
"PTTR","Ptelea trifoliata L.","common hoptree"
"PUCCI","Puccinellia Parl.","Puccinellia"
"PUDI","Puccinellia distans (Jacq.) Parl.","weeping alkaligrass"
"PUNU2","Puccinellia nuttalliana (Schult.) Hitchc.","Nuttall alkaligrass"
"PURSH","Purshia DC. ex Poir.","Purshia"
"PUSU2","Purshia ×subintegra (Kearney) Henrickson [pinkavae × stansburiana]","Arizona cliffrose"
"PUTR2","Purshia tridentata (Pursh) DC.","antelope bitterbrush"
"PYCR2","Pyrrocoma crocea (A. Gray) Greene","curlyhead goldenweed"
"PYRRO","Pyrrocoma Hook.","Pyrrocoma"
"QUAR","Quercus arizonica Sarg.","Arizona white oak"
"QUCH2","Quercus chrysolepis Liebm.","canyon live oak"
"QUEM","Quercus emoryi Torr.","Emory oak"
"QUERC","Quercus L.","Quercus"
"QUGA","Quercus gambelii Nutt.","Gambel oak"
"QUHY","Quercus hypoleucoides A. Camus","silverleaf oak"
"QUOB","Quercus oblongifolia Torr.","Mexican blue oak"
"QURU4","Quercus rugosa Née","netleaf oak"
"QUTU2","Quercus turbinella Greene","turbinella oak"
"RAAN","Ranunculus andersonii A. Gray","pink buttercup"
"RAAR2","Ranunculus arizonicus Lemmon ex A. Gray","Arizona buttercup"
"RACA4","Ranunculus cardiophyllus Hook.","heartleaf buttercup"
"RACO3","Ratibida columnifera (Nutt.) Woot. & Standl.","redspike Mexican-hat"
"RAFIN","Rafinesquia Nutt.","Rafinesquia"
"RAHY","Ranunculus hydrocharoides A. Gray","aquatic buttercup"
"RAMA2","Ranunculus macounii Britton","Macoun buttercup"
"RANE","Rafinesquia neomexicana A. Gray","desert-chicory"
"RANUN","Ranunculus L.","Ranunculus"
"RATA","Ratibida tagetes (James) Barnhart","green Mexican-hat"
"RATIB","Ratibida Raf.","Ratibida"
"REDFI","Redfieldia Vasey","Redfieldia"
"REFL","Redfieldia flexuosa (Thurb.) Vasey","blowout grass"
"RHAMN","Rhamnus L.","Rhamnus"
"RHCR","Rhamnus crocea Nutt.","redberry buckthorn"
"RHGL","Rhus glabra L.","smooth sumac"
"RHIL","Rhamnus ilicifolia Kellogg","hollyleaf buckthorn"
"RHMI3","Rhus microphylla Engelm. ex A. Gray","littleleaf desert sumac"
"RHOV","Rhus ovata S. Watson","sugar sumac"
"RHTR","Rhus trilobata Nutt.","skunkbush sumac"
"RHUS","Rhus L.","Rhus"
"RIAU","Ribes aureum Pursh","golden currant"
"RIBES","Ribes L.","Ribes"
"RICE","Ribes cereum Douglas","wax currant"
"RICIN","Ricinus L.","Ricinus"
"RICO3","Ricinus communis L.","castor bean"
"RIIN2","Ribes inerme Rydb.","whitestem gooseberry"
"RILE","Ribes leptanthum A. Gray","trumpet gooseberry"
"RIPI","Ribes pinetorum Greene","orange gooseberry"
"RIWO","Ribes wolfii Rothr.","black currant"
"ROBIN","Robinia L.","Robinia"
"RONE","Robinia neomexicana A. Gray","New Mexico locust"
"ROSA5","Rosa L.","Rosa"
"ROST","Rosa stellata Woot.","desert rose"
"ROWO","Rosa woodsii Lindl.","Woods rose"
"RUAC3","Rumex acetosella L.","common sheep sorrel"
"RUBUS","Rubus L.","Rubus"
"RUCR","Rumex crispus L.","curly dock"
"RUDBE","Rudbeckia L.","Rudbeckia"
"RUHY","Rumex hymenosepalus Torr.","canaigre"
"RUID","Rubus idaeus L.","wild red raspberry"
"RULA3","Rudbeckia laciniata L.","cutleaf coneflower"
"RULE","Rubus leucodermis Douglas ex Torr. & A. Gray","western raspberry"
"RUMEX","Rumex L.","Rumex"
"RUNE","Rubus neomexicanus A. Gray","New Mexico raspberry"
"RUPA","Rubus parviflorus Nutt.","thimbleberry"
"SAAE","Salvia aethiopis L.","Mediterranean sage"
"SAAM2","Salix amygdaloides Andersson","peachleaf willow"
"SAAN2","Sanguisorba annua (Nutt. ex Hook.) Nutt. ex Torr. & A. Gray","prairie burnet"
"SABE2","Salix bebbiana Sarg.","Bebb willow"
"SACO6","Salvia columbariae Benth.","chia"
"SADO4","Salvia dorrii (Kellogg) Abrams","purple sage"
"SAEX","Salix exigua Nutt.","coyote willow"
"SAGER","Sageretia Brongn.","Sageretia"
"SAGO","Salix gooddingii C.R. Ball","Goodding willow"
"SALA6","Salix lasiolepis Benth.","arroyo willow"
"SALAZ","Salazaria Torr.","Salazaria"
"SALIX","Salix L.","Salix"
"SALSO","Salsola L.","Salsola"
"SALVI","Salvia L.","Salvia"
"SAMBU","Sambucus L.","Sambucus"
"SAME","Salazaria mexicana Torr.","Mexican bladdersage"
"SAMI3","Sanguisorba minor Scop.","salad burnet"
"SAMO3","Salvia mohavensis Greene","Mojave sage"
"SANGU2","Sanguisorba L.","Sanguisorba"
"SANI4","Sambucus nigra L.","Mexican elderberry"
"SANIC5","Sambucus nigra L. ssp. cerulea (Raf.) R. Bolli","blue elderberry"
"SAPIN","Sapindus L.","Sapindus"
"SARCO","Sarcobatus Nees","Sarcobatus"
"SARE3","Salvia reflexa Hornem.","lanceleaf sage"
"SASA4","Sapindus saponaria L.","western soapberry"
"SASC","Salix scouleriana Barratt ex Hook.","Scouler willow"
"SATA","Salix taxifolia Kunth","yewleaf willow"
"SATR12","Salsola tragus L.","prickly Russian thistle"
"SAVE4","Sarcobatus vermiculatus (Hook.) Torr.","black greasewood"
"SAWR","Sageretia wrightii S. Watson","mock buckthorn"
"SCAC3","Schoenoplectus acutus (Muhl. ex Bigelow) A. Löve & D. Löve","hardstem bulrush"
"SCAM6","Schoenoplectus americanus (Pers.) Volkart ex Schinz & R. Keller","chairmaker bulrush"
"SCAR","Schismus arabicus Nees","Arabian schismus"
"SCBA","Schismus barbatus (Loefl. ex L.) Thell.","Mediterranean grass"
"SCBR2","Scleropogon brevifolius Phil.","burrograss"
"SCCI2","Schizachyrium cirratum (Hack.) Woot. & Standl.","Texas bluestem"
"SCDR2","Scutellaria drummondii Benth.","Drummond skullcap"
"SCGA","Scutellaria galericulata L.","marsh skullcap"
"SCHED","Schedonnardus Steud.","Schedonnardus"
"SCHIS","Schismus P. Beauv.","Schismus"
"SCHIZ4","Schizachyrium Nees","Schizachyrium"
"SCHOE6","Schoenoplectus (Rchb.) Palla","Schoenoplectus"
"SCIRP","Scirpus L.","Scirpus"
"SCLER10","Sclerocactus Britton & Rose","Sclerocactus"
"SCLER7","Scleropogon Phil.","Scleropogon"
"SCMI2","Scirpus microcarpus J. Presl & C. Presl","smallfruit bulrush"
"SCPA","Schedonnardus paniculatus (Nutt.) Trel.","tumblegrass"
"SCPA9","Sclerocactus parviflorus Clover & Jotter","smallflower pineapple cactus"
"LOAR10","Lolium arundinaceum (Schreb.) S.J. Darbyshire","tall fescue"
"SCPU10","Schoenoplectus pungens (Vahl) Palla","common threesquare bulrush"
"SCSA","Schizachyrium sanguineum (Retz.) Alston","crimson bluestem"
"SCSC","Schizachyrium scoparium (Michx.) Nash","little bluestem"
"WYSC","Wyethia scabra Hook.","sandpaper mulesears"
"SCSP2","Sclerocactus spinosior (Engelm.) Woodruff & L.D. Benson","desert pineapple cactus"
"SCTA2","Schoenoplectus tabernaemontani (C.C. Gmel.) Palla","softstem bulrush"
"SCUTE","Scutellaria L.","Scutellaria"
"SCWH","Sclerocactus whipplei (Engelm. & Bigelow) Britton & Rose","Whipple pineapple cactus"
"SEAR8","Senna armata (S. Watson) Irwin & Barneby","spiny senna"
"SEBA3","Senna bauhinioides (A. Gray) Irwin & Barneby","twinleaf senna"
"SEBI2","Senecio bigelovii A. Gray","nodding groundsel"
"SECAL","Secale L.","Secale"
"SECE","Secale cereale L.","cereal rye"
"SECO","Sedum cockerellii Britton","Cockerell stonecrop"
"SECO10","Senna covesii (A. Gray) Irwin & Barneby","desert senna"
"SEDUM","Sedum L.","Sedum"
"SEER2","Senecio eremophilus Richardson","desert groundsel"
"SEFL3","Senecio flaccidus Less.","threadleaf groundsel"
"SEIT","Setaria italica (L.) P. Beauv.","foxtail bristlegrass"
"SELA","Sedum lanceolatum Torr.","lanceleaf stonecrop"
"SELE6","Setaria leucopila (Scribn. & Merr.) K. Schum.","yellow bristlegrass"
"SELI4","Senna lindheimeriana (Scheele) Irwin & Barneby","showy senna"
"SEMO3","Senecio mohavensis A. Gray","Mojave groundsel"
"SENEC","Senecio L.","Senecio"
"SENNA","Senna Mill.","Senna"
"SESP3","Senecio spartioides Torr. & A. Gray","broom groundsel"
"SETAR","Setaria P. Beauv.","Setaria"
"SEVI4","Setaria viridis (L.) P. Beauv.","green bristlegrass"
"SEVU2","Setaria vulpiseta (Lam.) Roem. & Schult.","plains bristlegrass"
"SEWI3","Senna wislizeni (A. Gray) Irwin & Barneby","shrubby senna"
"SEWO","Senecio wootonii Greene","Wooton groundsel"
"SHCA","Shepherdia canadensis (L.) Nutt.","russet buffaloberry"
"SHEPH","Shepherdia Nutt.","Shepherdia"
"SHRO","Shepherdia rotundifolia Parry","roundleaf buffaloberry"
"SIAB","Sida abutifolia Mill.","prostrate sida"
"SIAN2","Silene antirrhina L.","sleepy catchfly"
"SICH","Simmondsia chinensis (Link) C.K. Schneid.","jojoba"
"SIDA","Sida L.","Sida"
"SIDAL","Sidalcea A. Gray","Sidalcea"
"SIDER2","Sideroxylon L.","Sideoxylon"
"SIIR","Sisymbrium irio L.","London rocket hedgemustard"
"SILA11","Simsia lagasceiformis DC.","annual bush-sunflower"
"SILA2","Silene laciniata Cav.","Mexican catchfly"
"SILA20","Sideroxylon lanuginosum Michx.","chittamwood"
"SILEN","Silene L.","Silene"
"SIMMO","Simmondsia Nutt.","Simmondsia"
"SIMSI","Simsia Pers.","Simsia"
"SINE","Sida neomexicana A. Gray","New Mexico sida"
"SINE3","Sidalcea neomexicana A. Gray","New Mexico checkermallow"
"SISC7","Silene scouleri Hook.","Scouler catchfly"
"SISP","Sida spinosa L.","prickly sida"
"SISU2","Sium suave Walter","hemlock waterparsnip"
"SISYM","Sisymbrium L.","Sisymbrium"
"SIUM","Sium L.","Sium"
"SOAR3","Sophora arizonica S. Watson","Arizona sophora"
"SOAS","Sonchus asper (L.) Hill","spinyleaf sowthistle"
"SOCA6","Solidago canadensis L.","creek goldenrod"
"SODU2","Sorbus dumosa Greene","Arizona mountainash"
"SOEL","Solanum elaeagnifolium Cav.","silverleaf nightshade"
"SOHA","Sorghum halepense (L.) Pers.","Johnson grass"
"SOJA","Solanum jamesii Torr.","wild potato"
"SOLAN","Solanum L.","Solanum"
"SOLID","Solidago L.","Solidago"
"SOMI2","Solidago missouriensis Nutt.","Missouri goldenrod"
"SOMU","Solidago multiradiata Aiton","mountain goldenrod"
"SONCH","Sonchus L.","Sonchus"
"SONU2","Sorghastrum nutans (L.) Nash","Indiangrass"
"SOOL","Sonchus oleraceus L.","common sowthistle"
"SOPHO","Sophora L.","Sophora"
"SORBU","Sorbus L.","Sorbus"
"SORGH","Sorghastrum Nash","Sorghastrum"
"SORGH2","Sorghum Moench","Sorghum"
"SORO","Solanum rostratum Dunal","buffalobur nightshade"
"SOSP3","Solidago spectabilis (D.C. Eaton) A. Gray","Nevada goldenrod"
"SOXA","Solanum xanti A. Gray","purple nightshade"
"SPAI","Sporobolus airoides (Torr.) Torr.","alkali sacaton"
"SPAM2","Sphaeralcea ambigua A. Gray","desert globemallow"
"SPAN3","Sphaeralcea angustifolia (Cav.) G. Don","narrowleaf globemallow"
"SPART","Spartina Schreb.","Spartina"
"SPCO","Sphaeralcea coccinea (Nutt.) Rydb.","scarlet globemallow"
"SPCO2","Sphaeralcea coulteri (S. Watson) A. Gray","Coulter globemallow"
"SPCO4","Sporobolus contractus Hitchc.","spike dropseed"
"SPCR","Sporobolus cryptandrus (Torr.) A. Gray","sand dropseed"
"SPEM","Sphaeralcea emoryi Torr. ex A. Gray","Emory globemallow"
"SPFL2","Sporobolus flexuosus (Thurb. ex Vasey) Rydb.","mesa dropseed"
"SPGI","Sporobolus giganteus Nash","giant dropseed"
"SPGR","Spartina gracilis Trin.","alkali cordgrass"
"SPGR2","Sphaeralcea grossulariifolia (Hook. & Arn.) Rydb.","gooseberryleaf globemallow"
"SPHAE","Sphaeralcea A. St.-Hil.","Sphaeralcea"
"SPIN2","Sphaeralcea incana Torr. ex A. Gray","soft globemallow"
"SPIN5","Sporobolus interruptus Vasey","black dropseed"
"SPLA","Sphaeralcea laxa Woot. & Standl.","caliche globemallow"
"SPNE","Sporobolus nealleyi Vasey","gyp dropseed"
"SPORO","Sporobolus R. Br.","Sporobolus"
"SPPA2","Sphaeralcea parvifolia A. Nelson","littleleaf globemallow"
"SPWR2","Sporobolus wrightii Munro ex Scribn.","big sacaton"
"STACH","Stachys L.","Stachys"
"STANL","Stanleya Nutt.","Stanleya"
"STCA5","Streptanthus carinatus C. Wright ex A. Gray","Arizona twistflower"
"STCO","Stachys coccinea Ortega","scarlet hedgenettle"
"STELL","Stellaria L.","Stellaria"
"STENO8","Stenocereus (A. Berger) Riccob.","Stenocereus"
"STEPH","Stephanomeria Nutt.","Stephanomeria"
"STEVI","Stevia Cav.","Stevia"
"STEX","Stephanomeria exigua Nutt.","small wirelettuce"
"STLE","Stevia lemmonii (A. Gray) A. Gray","Lemmon candyleaf"
"STLO2","Stellaria longipes Goldie","longstalk starwort"
"STMI13","Stephanomeria minor (Hook.) Nutt.","narrowleaf wirelettuce"
"STPA4","Stephanomeria pauciflora (Torr.) A. Nelson","brownplume wirelettuce"
"STPI","Stanleya pinnata (Pursh) Britton","desert princesplume"
"STPI6","Stachys pilosa Nutt.","hairy hedgenettle"
"STREP2","Streptanthus Nutt.","Streptanthus"
"STTH","Stephanomeria thurberi A. Gray","Thurber wirelettuce"
"STTH3","Stenocereus thurberi (Engelm.) Buxbaum","organpipe cactus"
"SUAED","Suaeda Forssk. ex J.F. Gmel.","Suaeda"
"SUMO","Suaeda moquinii (Torr.) Greene","Torrey seepweed"
"SUSU","Suaeda suffrutescens S. Watson","desert seepweed"
"SYAS3","Symphyotrichum ascendens (Lindl.) G.L. Nesom","western aster"
"SYEA2","Symphyotrichum eatonii (A. Gray) G.L. Nesom","Eaton aster"
"SYER","Symphyotrichum ericoides (L.) G.L. Nesom","white heath aster"
"SYFR2","Symphyotrichum frondosum (Nutt.) G.L. Nesom","shortray alkali aster"
"SYLA6","Symphyotrichum lanceolatum (Willd.) G.L. Nesom","white panicle aster"
"SYLO","Symphoricarpos longiflorus A. Gray","longflower snowberry"
"SYMPH","Symphoricarpos Duham.","Symphoricarpos"
"SYMPH4","Symphyotrichum Nees","Symphyotrichum"
"SYOR2","Symphoricarpos oreophilus A. Gray","mountain snowberry"
"SYRO","Symphoricarpos rotundifolius A. Gray","roundleaf snowberry"
"TAAP","Tamarix aphylla (L.) Karst.","Athel tamarisk"
"TAGET","Tagetes L.","Tagetes"
"TALE","Tagetes lemmonii A. Gray","Lemmon marigold"
"TALIN2","Talinum Adans.","Talinum"
"TAMAR2","Tamarix L.","Tamarix"
"TAMI","Tagetes micrantha Cav.","bitterball"
"TAOF","Taraxacum officinale F.H. Wigg.","common dandelion"
"TAPA2","Talinum paniculatum (Jacq.) Gaertn.","big talinum"
"TAPA4","Tamarix parviflora DC.","smallflower tamarisk"
"TARA","Tamarix ramosissima Ledeb.","saltcedar tamarisk"
"TARAX","Taraxacum F.H. Wigg.","Taraxacum"
"TEAX","Tetradymia axillaris A. Nelson","longspine horsebrush"
"TECA2","Tetradymia canescens DC.","gray horsebrush"
"TECOM","Tecoma Juss.","Tecoma"
"TEST","Tecoma stans (L.) Juss. ex Kunth","yellow trumpetbush"
"TETRA3","Tetradymia DC.","Tetradymia"
"THALI2","Thalictrum L.","Thalictrum"
"THAMN","Thamnosma Torr. & Frém.","Thamnosma"
"THAR5","Thlaspi arvense L.","field candytuft"
"THDA","Thalictrum dasycarpum Fisch. & Avé-Lall.","purple meadowrue"
"THELE","Thelesperma Less.","Thelesperma"
"THERM","Thermopsis R. Br.","Thermopsis"
"THFE","Thalictrum fendleri Engelm. ex A. Gray","Fendler meadowrue"
"THIN6","Thinopyrum intermedium (Host) Barkworth & D.R. Dewey","intermediate wheatgrass"
"THINO","Thinopyrum A. Löve","Thinopyrum"
"THLAS","Thlaspi L.","Thlaspi"
"THME","Thelesperma megapotamicum (Spreng.) Kuntze","Hopi tea greenthread"
"THMO","Thamnosma montana Torr. & Frém.","turpentine broom"
"THMO6","Thermopsis montana Nutt.","mountain goldenpea"
"THSU","Thelesperma subnudum A. Gray","Navajo tea greenthread"
"TICA3","Tiquilia canescens (DC.) A.T. Richardson","ratear crinklemat"
"TIDES","Tidestromia Standl.","Tidestromia"
"TILA2","Tidestromia lanuginosa (Nutt.) Standl.","woolly tidestromia"
"TIOB","Tidestromia oblongifolia (S. Watson) Standl.","honeysweet tidestromia"
"TIPL2","Tiquilia plicata (Torr.) A.T. Richardson","fanleaf crinklemat"
"TIQUI","Tiquilia Pers.","Tiquilia"
"TOEX2","Townsendia exscapa (Richardson) Porter","stemless Townsend daisy"
"TOFO","Townsendia formosa Greene","smooth Townsend daisy"
"TOPA6","Torreyochloa pallida (Torr.) Church","false mannagrass"
"TORA2","Toxicodendron radicans (L.) Kuntze","eastern poison ivy"
"TORRE2","Torreyochloa Church","Torreyochloa"
"TORY","Toxicodendron rydbergii (Small ex Rydb.) Greene","western poison ivy"
"TOWNS","Townsendia Hook.","Townsendia"
"TOXIC","Toxicodendron Mill.","Toxicodendron"
"TRACH2","Trachypogon Nees","Trachypogon"
"TRADE","Tradescantia L.","Tradescantia"
"TRAGI","Tragia L.","Tragia"
"TRAGO","Tragopogon L.","Tragopogon"
"TRAL5","Trifolium albopurpureum Torr. & A. Gray","rancheria clover"
"TRAM9","Tragia amblyodonta (Müll. Arg.) Pax & K. Hoffm.","dogtooth noseburn"
"TRCA8","Trixis californica Kellogg","California trixis"
"CHCR","Chloris crinita Lag.","twoflower chloris"
"TRDU","Tragopogon dubius Scop.","yellow salsify"
"TRGR2","Trifolium gracilentum Torr. & A. Gray","pinpoint clover"
"TRIBU","Tribulus L.","Tribulus"
"TRIDE","Tridens Roem. & Schult.","Tridens"
"TRIFO","Trifolium L.","Trifolium"
"TRIPS","Tripsacum L.","Tripsacum"
"TRISE","Trisetum Pers.","Trisetum"
"TRIXI","Trixis P. Br.","Trixis"
"TRLA11","Tripsacum lanceolatum Rupr. ex Fourn.","Mexican gamagrass"
"TRLO","Trifolium longipes Nutt.","longstalk clover"
"TRMU","Tridens muticus (Torr.) Nash","slim tridens"
"TRMUE","Tridens muticus (Torr.) Nash var. elongatus (Buckley) Shinners","rough tridens"
"TROC","Tradescantia occidentalis (Britton) Smyth","prairie spiderwort"
"TRPI3","Trifolium pinetorum Greene","pinewoods clover"
"TRPR2","Trifolium pratense L.","red clover"
"TRRA5","Tragia ramosa Torr.","branched noseburn"
"TRRE3","Trifolium repens L.","white clover"
"TRSP12","Trachypogon spicatus (L. f.) Kuntze","crinkleawn"
"TRSP2","Trisetum spicatum (L.) K. Richt.","spike trisetum"
"TRTE","Tribulus terrestris L.","puncture vine"
"TUMA","Tumamoca macdougalii Rose","Tumamoc globeberry"
"TUMAM","Tumamoca Rose","Tumamoca"
"TYDO","Typha domingensis Pers.","narrowleaf cattail"
"TYLA","Typha latifolia L.","broadleaf cattail"
"TYPHA","Typha L.","Typha"
"ULMUS","Ulmus L.","Ulmus"
"ULPU","Ulmus pumila L.","Siberian elm"
"URDI","Urtica dioica L.","stinging nettle"
"URTIC","Urtica L.","Urtica"
"VAAR3","Valeriana arizonica A. Gray","Arizona valerian"
"VACA5","Vauquelinia californica (Torr.) Sarg.","Arizona rosewood"
"VACCI","Vaccinium L.","Vaccinium"
"VAED","Valeriana edulis Nutt. ex Torr. & A. Gray","common tobacco root"
"VAGE","Vaccinium geminiflorum Kunth","Mexican blueberry"
"VALER","Valeriana L.","Valeriana"
"VAMY2","Vaccinium myrtillus L.","Rocky Mountain blueberry"
"VAUQU","Vauquelinia Corręa ex Bonpl.","Vauquelinia"
"VEAM2","Veronica americana Schwein. ex Benth.","American speedwell"
"VEBR","Verbena bracteata Cav. ex Lag. & Rodr.","carpet verbena"
"VECA2","Veratrum californicum Durand","western false hellebore"
"VEEN","Verbesina encelioides (Cav.) Benth. & Hook. f. ex A. Gray","golden crownbeard"
"VEMA","Verbena macdougalii A. Heller","New Mexico verbena"
"VENE","Verbena neomexicana (A. Gray) Small","hillside verbena"
"VERAT","Veratrum L.","Veratrum"
"VERBA","Verbascum L.","Verbascum"
"VERON","Veronica L.","Veronica"
"VESE","Veronica serpyllifolia L.","thymeleaf speedwell"
"VETH","Verbascum thapsus L.","common mullein"
"VIAD","Viola adunca Sm.","hookedspur violet"
"VIAG","Vitex agnus-castus L.","lilac chastetree"
"VIAM","Vicia americana Muhl. ex Willd.","American vetch"
"VIAR2","Vitis arizonica Engelm.","canyon grape"
"VICA4","Viola canadensis L.","Canadian white violet"
"VICIA","Vicia L.","Vicia"
"VIDE3","Viguiera dentata (Cav.) Spreng.","toothleaf goldeneye"
"VIGUI","Viguiera Kunth","Viguiera"
"VIMA","Vinca major L.","greater periwinkle"
"VINCA","Vinca L.","Vinca"
"VIOLA","Viola L.","Viola"
"VITEX","Vitex L.","Vitex"
"VITIS","Vitis L.","Vitis"
"VULPI","Vulpia C.C. Gmel.","Vulpia"
"VUMY","Vulpia myuros (L.) C.C. Gmel.","foxtail fescue"
"VUOC","Vulpia octoflora (Walter) Rydb.","sixweeks fescue"
"WAFI","Washingtonia filifera (Linden ex André) H. Wendl.","California desert fan palm"
"WASHI","Washingtonia H. Wendl.","Washingtonia"
"WIRE","Wislizenia refracta Engelm.","jackass-clover"
"WISLI","Wislizenia Engelm.","Wislizenia"
"WOODS","Woodsia R. Br.","Woodsia"
"WOPL","Woodsia plummerae Lemmon","Plummer cliff fern"
"WYAR","Wyethia arizonica A. Gray","Arizona mulesears"
"WYETH","Wyethia Nutt.","Wyethia"
"XANTH2","Xanthium L.","Xanthium"
"XASP2","Xanthium spinosum L.","spiny cocklebur"
"XAST","Xanthium strumarium L.","common cocklebur"
"YUAN2","Yucca angustissima Engelm. ex Trel.","narrowleaf yucca"
"YUBA","Yucca baccata Torr.","banana yucca"
"YUBAV","Yucca baccata Torr. var. vespertina McKelvey","banana yucca"
"YUBA2","Yucca baileyi Woot. & Standl.","Navajo yucca"
"YUBR","Yucca brevifolia Engelm.","Joshua tree"
"YUCCA","Yucca L.","Yucca"
"YUEL","Yucca elata (Engelm.) Engelm.","soaptree yucca"
"YUHA","Yucca harrimaniae Trel.","Spanish bayonet"
"YUSC","Yucca ×schottii Engelm. (pro sp.) [baccata × elata]","Schott yucca"
"YUSC2","Yucca schidigera Roezl ex Ortgies","Mojave yucca"
"ZIAC","Zinnia acerosa (DC.) A. Gray","desert zinnia"
"ZIEL2","Zigadenus elegans Pursh","white deathcamas"
"ZIGAD","Zigadenus Michx.","Zigadenus"
"ZIGR","Zinnia grandiflora Nutt.","Texas zinnia"
"ZINNI","Zinnia L.","Zinnia"
"ZIOB","Ziziphus obtusifolia (Hook. ex Torr. & A. Gray) A. Gray","graythorn"
"ZIPE","Zinnia peruviana (L.) L.","Peruvian zinnia"
"ZIVI","Zigadenus virescens (Kunth) J.F. Macbr.","green deathcamas"
"ZIZIP","Ziziphus Mill.","Ziziphus"
"ZOGE","Zornia gemella Vogel","dos-hojas-zazabacoa-de-dos-hojas"
"ZOLE","Zornia leptophylla (Benth.) Pittier","horsekiller"
"ZORNI","Zornia J.F. Gmel.","Zornia"
"ZUBR","Zuckia brandegeei (A. Gray) S.L. Welsh & Stutz ex S.L. Welsh","spiny hopsage"
"ZUCKI","Zuckia Standl.","Zuckia"