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Taxon author(s): S. Wats.

ITIS records 1 to 500 citing taxon author(s) "S. Wats."
 
 Kingdom Animalia
  Uperoleia altissima Davies, Watson, McDonald, Trenerry and Werren, 1993 -- valid
 
 Kingdom Plantae
  Abronia maritima Nutt. ex S. Wats. -- accepted -- red sand verbena
  Abronia nana S. Wats. -- accepted -- dwarf sand verbena, dwarf sandverbena
  Abronia nana var. nana S. Wats. -- accepted -- dwarf sand verbena, dwarf sandverbena
  Abronia turbinata Torr. ex S. Wats. -- accepted -- transmontane sand verbena, transmontane sandverbena
  Abronia villosa S. Wats. -- accepted -- desert sand verbena, desert sandverbena
  Abronia villosa var. villosa S. Wats. -- accepted -- desert sand verbena, desert sandverbena, wooly desert sand verbena
  Abutilon berlandieri Gray ex S. Wats. -- accepted -- Berlandier Indian mallow, Berlandier's Indian mallow
  Abutilon malacum S. Wats. -- accepted -- yellow Indian mallow
  Abutilon newberryi S. Wats. -- not accepted
  Abutilon parishii S. Wats. -- accepted -- Parish Indian mallow, Parish's Indian mallow
  Abutilon reventum S. Wats. -- accepted -- yellowflower Indian mallow
  Acacia millefolia S. Wats. -- accepted -- milfoil wattle, Santa Rita acacia
  Acacia schaffneri (S. Wats.) F.J. Herm. -- accepted -- Schaffner's wattle, twisted acacia
  Acacia schaffneri var. schaffneri (S. Wats.) F.J. Herm. -- accepted -- Schaffner's wattle
  Acalypha pringlei S. Wats. -- not accepted
  Achnatherum occidentale (Thurb. ex S. Wats.) Barkworth -- accepted -- western needlegrass
  Achnatherum occidentale ssp. occidentale (Thurb. ex S. Wats.) Barkworth -- accepted -- western needle grass, western needlegrass
  Acnida altissima var. subnuda (S. Wats.) Fern. -- not accepted
  Acnida floridana S. Wats. -- not accepted
  Acnida subnuda (S. Wats.) Standl. -- not accepted
  Acrolasia dispersa (S. Wats.) A. Davids. -- not accepted
  Adenostoma fasciculatum var. obtusifolium S. Wats. -- accepted -- chamise
  Adolphia californica S. Wats. -- accepted -- California adolphia, California prickbush
  Aletes bipinnata (S. Wats.) W.A. Weber -- not accepted
  Aletes nivalis (S. Wats.) W.A. Weber -- not accepted
  Aletes parryi (S. Wats.) W.A. Weber -- not accepted
  Allenrolfea occidentalis (S. Wats.) Kuntze -- accepted -- iodinebush
  Allionia glabra (S. Wats.) Kuntze -- not accepted
  Allium atrorubens S. Wats. -- accepted -- dark red onion, darkred onion, red onion
  Allium atrorubens var. atrorubens S. Wats. -- accepted -- darkred onion
  Allium atrorubens var. cristatum (S. Wats.) McNeal -- accepted -- darkred onion, Wild onion
  Allium bidwelliae S. Wats. -- not accepted
  Allium bigelovii S. Wats. -- accepted -- Bigelow onion, Bigelow's onion
  Allium bisceptrum S. Wats. -- accepted -- aspen onion, twincrest onion
  Allium bisceptrum var. bisceptrum S. Wats. -- accepted -- twincrest onion
  Allium bisceptrum var. palmeri (S. Wats.) Cronq. -- accepted -- aspen onion
  Allium bolanderi S. Wats. -- accepted -- Bolander's onion
  Allium bolanderi var. bolanderi S. Wats. -- accepted -- Bolander's onion
  Allium brandegeei S. Wats. -- accepted -- brandegee onion, Brandegee's onion
  Allium brevistylum S. Wats. -- accepted -- shortstyle onion
  Allium breweri S. Wats. -- not accepted
  Allium campanulatum S. Wats. -- accepted -- dusky onion, Sierra onion
  Allium campanulatum var. bidwelliae (S. Wats.) Jepson -- not accepted
  Allium collinum Dougl. ex S. Wats. -- not accepted
  Allium cristatum S. Wats. -- not accepted
  Allium cusickii S. Wats. -- not accepted
  Allium douglasii var. nevii (S. Wats.) Ownbey & Mingrone -- not accepted
  Allium fimbriatum S. Wats. -- accepted -- fringed onion
  Allium fimbriatum ssp. parryi (S. Wats.) Traub & Ownbey -- not accepted
  Allium fimbriatum var. fimbriatum S. Wats. -- accepted -- fringed onion
  Allium fimbriatum var. parryi (S. Wats.) Ownbey & Aase -- not accepted
  Allium geyeri S. Wats. -- accepted -- Geyer onion, Geyer's onion
  Allium geyeri var. geyeri S. Wats. -- accepted -- Geyer onion, Geyer's onion
  Allium haematochiton S. Wats. -- accepted -- redskin onion
  Allium lacunosum S. Wats. -- accepted -- pitted onion
  Allium lacunosum var. lacunosum S. Wats. -- accepted -- pitted onion
  Allium lemmonii S. Wats. -- accepted -- Lemmon onion, Lemmon's onion
  Allium macrum S. Wats. -- accepted -- rock onion
  Allium madidum S. Wats. -- accepted -- swamp onion
  Allium nevadense S. Wats. -- accepted -- Nevada onion
  Allium nevadense var. cristatum (S. Wats.) Ownbey -- not accepted
  Allium nevadense var. cristatum (S. Wats.) Ownbey -- not accepted
  Allium nevadense var. nevadense S. Wats. -- accepted -- Nevada onion
  Allium nevii S. Wats. -- accepted -- Nevius' garlic
  Allium nuttallii S. Wats. -- not accepted
  Allium palmeri S. Wats. -- not accepted
  Allium parishii S. Wats. -- accepted -- Parish's onion
  Allium parryi S. Wats. -- accepted -- Parry's fringed onion
  Allium platycaule S. Wats. -- accepted -- broadstem onion, broadstemmed onion
  Allium pleianthum S. Wats. -- accepted -- manyflower onion
  Allium plummerae S. Wats. -- accepted -- Tanners Canyon onion
  Allium scilloides Dougl. ex S. Wats. -- accepted -- fragile onion
  Allium serratum S. Wats. -- accepted -- pompom onion
  Allium tolmiei (Hook.) Baker ex S. Wats. -- accepted -- Tolm's onion, Tolmie onion, Tolmie's onion
  Allium tolmiei var. tolmiei (Hook.) Baker ex S. Wats. -- accepted -- Tolm's onion, Tolmie's onion
  Allium tribracteatum var. andersonii S. Wats. -- not accepted
  Allium validum S. Wats. -- accepted -- Pacific onion, swamp onion
  Alnus incana var. virescens S. Wats. -- not accepted
  Alternanthera palmeri S. Wats. -- accepted -- Palmer's joyweed
  Amaranthus blitoides S. Wats. -- accepted -- mat amaranth, prostrate amaranth, prostrate pigweed
  Amaranthus californicus (Moq.) S. Wats. -- accepted -- California amaranth, California pigweed
  Amaranthus chihuahuensis S. Wats. -- accepted -- Chihuahuan amaranth
  Amaranthus fimbriatus (Torr.) Benth. ex S. Wats. -- accepted -- fringed amaranth, fringed pigweed
  Amaranthus fimbriatus var. fimbriatus (Torr.) Benth. ex S. Wats. -- accepted -- fringed amaranth, fringed pigweed
  Amaranthus floridanus (S. Wats.) Sauer -- accepted -- Florida amaranth
  Amaranthus greggii S. Wats. -- accepted -- Gregg's amaranth
  Amaranthus leucocarpus S. Wats. -- not accepted
  Amaranthus palmeri S. Wats. -- accepted -- carelessweed, Palmer amaranth, Palmer's amaranth
  Amaranthus powellii S. Wats. -- accepted -- Powell amaranth, Powell pigweed, Powell's amaranth
  Amaranthus pringlei S. Wats. -- accepted -- Pringle's amaranth
  Amaranthus retroflexus var. powellii (S. Wats.) Boivin -- not accepted
  Amaranthus torreyi auct. non (Gray) Benth. ex S. Wats. -- not accepted
  Amaranthus torreyi (Gray) Benth. ex S. Wats. -- accepted -- Torrey's amaranthus
  Amaranthus tuberculatus var. subnudus S. Wats. -- not accepted
  Amaranthus wrightii S. Wats. -- accepted -- Wright's amaranth
  Amerosedum debile (S. Wats.) A.& D. Löve -- not accepted
  Amerosedum divergens (S. Wats.) A.& D. Löve -- not accepted
  Amerosedum radiatum (S. Wats.) A.& D. Löve -- not accepted
  Ammoselinum butleri (Engelm. ex S. Wats.) Coult. & Rose -- accepted -- Butler's sandparsley
  Amphiscirpus nevadensis (S. Wats.) Oteng Yeboah -- not accepted
  Amyris madrensis S. Wats. -- accepted -- mountain torchwood
  Androstephium breviflorum S. Wats. -- accepted -- pink funnel lily, pink funnellily, smallflower androstephium
  Anemone drummondii S. Wats. -- accepted -- Drummond anemone, Drummond's anemone
  Anemone drummondii ssp. drummondii S. Wats. -- accepted -- Drummond's anemone
  Anemone occidentalis S. Wats. -- not accepted
  Angelica dawsonii S. Wats. -- accepted -- Dawson's angelica
  Angelica kingii (S. Wats.) Coult. & Rose -- accepted -- King's angelica
  Angelica lyallii S. Wats. -- not accepted
  Angelica pinnata S. Wats. -- accepted -- small-leaf angelica, smallleaf angelica
  Angelica tomentosa S. Wats. -- accepted -- woolly angelica
  Angelica tomentosa var. tomentosa S. Wats. -- accepted -- woolly angelica
  Angelica wheeleri S. Wats. -- accepted -- Utah angelica
  Anoda reticulata S. Wats. -- accepted -- netted anoda
  Antigonon flavescens S. Wats. -- accepted -- lovechain
  Antirrhinum kingii S. Wats. -- not accepted
  Aphyllon dugesii S. Wats. -- not accepted
  Apium echinatum (Nutt. ex DC.) Benth. & Hook. f. ex S. Wats. -- not accepted
  Aquilegia flavescens S. Wats. -- accepted -- yellow columbine
  Aquilegia flavescens var. flavescens S. Wats. -- accepted -- yellow columbine
  Aquilegia formosa var. flavescens (S. Wats.) M.E. Peck -- not accepted
  Arabis arcuata var. perennans (S. Wats.) M.E. Jones -- not accepted
  Arabis arcuata var. subvillosa S. Wats. -- not accepted
  Arabis arenicola var. pubescens auct. non (S. Wats.) Gelert -- not accepted
  Arabis beckwithii S. Wats. -- accepted -- Beckwith's rockcress
  Arabis breweri S. Wats. -- accepted -- Brewer's rockcress
  Arabis breweri var. breweri S. Wats. -- accepted -- Brewer's rockcress
  Arabis confinis S. Wats. -- not accepted
  Arabis cusickii S. Wats. -- accepted -- Cusick's rockcress
  Arabis fendleri (S. Wats.) Greene -- accepted -- fendler rockcress, Fendler's rockcress
  Arabis fendleri var. fendleri (S. Wats.) Greene -- accepted -- Fendler's rockcress
  Arabis fernaldiana var. stylosa (S. Wats.) Rollins -- accepted -- park rockcress
  Arabis furcata S. Wats. -- accepted -- Columbia Gorge rockcress
  Arabis furcata var. furcata S. Wats. -- accepted -- Columbia Gorge rockcress
  Arabis holboellii var. fendleri S. Wats. -- not accepted
  Arabis howellii S. Wats. -- not accepted
  Arabis lemmonii S. Wats. -- accepted -- Lemmon rockcress, Lemmon's rockcress
  Arabis lemmonii var. lemmonii S. Wats. -- accepted -- Lemmon's rockcress
  Arabis lyallii S. Wats. -- accepted -- Lyall's rockcress
  Arabis lyallii var. lyallii S. Wats. -- accepted -- Lyall's rockcress
  Arabis macounii S. Wats. -- not accepted
  Arabis microphylla var. macounii (S. Wats.) Rollins -- accepted -- Macoun's rockcress
  Arabis parishii S. Wats. -- accepted -- dwarf rockcress
  Arabis perennans S. Wats. -- accepted -- perennial rockcress
  Arabis platysperma var. howellii (S. Wats.) Jepson -- accepted -- Howell's pioneer rockcress
  Arabis pulchra M.E. Jones ex S. Wats. -- accepted -- beautiful rockcress, beauty rockcress
  Arabis pulchra var. pulchra M.E. Jones ex S. Wats. -- accepted -- beautiful rockcress, desert rockcress
  Arabis repanda S. Wats. -- accepted -- Repand's rockcress, Yosemite rockcress
  Arabis repanda var. repanda S. Wats. -- accepted -- Yosemite rockcress
  Arabis sparsiflora var. subvillosa (S. Wats.) Rollins -- accepted -- hairystem rockcress
  Arabis subpinnatifida S. Wats. -- accepted -- Klamath rockcress
  Arabis suffrutescens S. Wats. -- accepted -- woody rockcress
  Arabis suffrutescens var. suffrutescens S. Wats. -- accepted -- woody rockcress
  Aralia californica S. Wats. -- accepted -- California spikenard
  Arenaria aculeata S. Wats. -- accepted -- prickly sandwort, spiny sandwort
  Arenaria congesta var. aculeata (S. Wats.) M.E. Jones -- not accepted
  Arenaria congesta var. kingii (S. Wats.) B.L. Robins. -- not accepted
  Arenaria congesta var. macradenia (S. Wats.) M.E. Jones -- not accepted
  Arenaria congesta var. subcongesta (S. Wats.) S. Wats. -- accepted -- ballhead sandwort, subcongesta sandwort
  Arenaria fendleri var. aculeata (S. Wats.) Welsh -- not accepted
  Arenaria fendleri var. glabrescens S. Wats. -- not accepted
  Arenaria fendleri var. subcongesta S. Wats. -- not accepted
  Arenaria howellii S. Wats. -- not accepted
  Arenaria kingii (S. Wats.) M.E. Jones -- accepted -- King's sandwort
  Arenaria kingii ssp. kingii (S. Wats.) M.E. Jones -- accepted -- King's sandwort
  Arenaria kingii var. glabrescens (S. Wats.) Maguire -- not accepted
  Arenaria macradenia S. Wats. -- accepted -- Mojave sandwort, shrubby sandwort
  Arenaria macradenia ssp. macradenia S. Wats. -- accepted -- Mojave sandwort
  Arenaria macradenia ssp. macradenia var. macradenia S. Wats. -- not accepted -- Mojave sandwort
  Arenaria macradenia var. macradenia S. Wats. -- accepted -- Mojave sandwort
  Arenaria pusilla S. Wats. -- not accepted
  Arenaria subcongesta (S. Wats.) Rydb. -- not accepted
  Arenaria verna var. rubella (Wahlenb.) S. Wats. -- not accepted
  Aristida basiramea var. curtissii (Gray ex S. Wats. & Coult.) Shinners -- not accepted
  Aristida californica Thurb. ex S. Wats. -- accepted -- California threeawn, Mojave threeawn
  Aristida californica var. californica Thurb. ex S. Wats. -- accepted -- California threeawn
  Aristida curtissii (Gray ex S. Wats. & Coult.) Nash -- not accepted
  Aristida dichotoma var. curtissii Gray ex S. Wats. & Coult. -- accepted -- Curtis' threeawn
  Aristolochia brevipes var. acuminata S. Wats. -- not accepted
  Artemisia dracunculoides var. dracunculina (S. Wats.) Blake -- not accepted
  Artemisia forwoodii S. Wats. -- not accepted
  Artemisia glauca var. dracunculina (S. Wats.) Fern. -- not accepted
  Asarum hartwegii S. Wats. -- accepted -- Hartweg's wildginger
  Asarum lemmonii S. Wats. -- accepted -- Lemmon's wildginger
  Asclepias albicans S. Wats. -- accepted -- whitestem milkweed
  Asclepias cryptoceras S. Wats. -- accepted -- Humboldt milkweed, Humboldt mountain milkweed, pallid milkweed
  Asclepias cryptoceras ssp. cryptoceras S. Wats. -- accepted -- Humboldt mountain milkweed, pallid milkweed
  Aster forwoodii S. Wats. -- not accepted
  Astragalus accidens S. Wats. -- accepted -- Rogue River milkvetch
  Astragalus accidens var. accidens S. Wats. -- accepted -- Rogue River milkvetch
  Astragalus acutirostris S. Wats. -- accepted -- sharpkeel milkvetch
  Astragalus ampullarius S. Wats. -- accepted -- gumbo milkvetch
  Astragalus antisellii Gray ex Brewer & S. Wats. -- not accepted
  Astragalus atratus S. Wats. -- accepted -- mourning milkvetch
  Astragalus atratus var. atratus S. Wats. -- accepted -- mourning milkvetch
  Astragalus austiniae Gray ex Brewer & S. Wats. -- accepted -- Austin's milkvetch
  Astragalus bigelovii var. thompsoniae (S. Wats.) M.E. Jones -- not accepted
  Astragalus calycosus Torr. ex S. Wats. -- accepted -- matted poison milkvetch, mattedmilkvetch, Torrey's milkvetch
  Astragalus calycosus var. calycosus Torr. ex S. Wats. -- accepted -- Torrey milkvetch, Torrey's milkvetch
  Astragalus canadensis var. mortonii (Nutt.) S. Wats. -- accepted -- Morton's Canadian milkvetch
  Astragalus casei Gray ex Brewer & S. Wats. -- accepted -- Case's milkvetch
  Astragalus castaneiformis S. Wats. -- accepted -- chestnut milk-vetch, chestnut milkvetch
  Astragalus congdonii S. Wats. -- accepted -- Congdon's milkvetch
  Astragalus conjunctus S. Wats. -- accepted -- Idaho milkvetch
  Astragalus conjunctus var. conjunctus S. Wats. -- accepted -- Idaho milkvetch
  Astragalus diaphanus var. diurnus (S. Wats.) Barneby ex M.E. Peck -- not accepted
  Astragalus diurnus S. Wats. -- not accepted
  Astragalus episcopus S. Wats. -- accepted -- bishop's milkvetch
  Astragalus episcopus var. episcopus S. Wats. -- accepted -- Bishop milkvetch, bishop's milkvetch
  Astragalus forwoodii S. Wats. -- not accepted
  Astragalus frigidus var. americanus (Hook.) S. Wats. -- not accepted
  Astragalus giganteus S. Wats. -- accepted -- giant loco, giant milkvetch
  Astragalus grayi Parry ex S. Wats. -- accepted -- Gray's milkvetch
  Astragalus hypoxylus S. Wats. -- accepted -- Huachuca Mountain milkvetch
  Astragalus iodanthus S. Wats. -- accepted -- Humboldt River milkvetch
  Astragalus iodanthus var. iodanthus S. Wats. -- accepted -- Humboldt River milkvetch
  Astragalus jejunus S. Wats. -- accepted -- starveling milkvetch
  Astragalus jejunus var. jejunus S. Wats. -- accepted -- starveling milkvetch
  Astragalus kentrophyta ssp. elatus (S. Wats.) W.A. Weber -- not accepted
  Astragalus kentrophyta var. elatus S. Wats. -- accepted -- tall spiny milkvetch
  Astragalus kentrophyta var. tegetarius (S. Wats.) Dorn -- accepted -- mat milkvetch
  Astragalus lectulus S. Wats. -- not accepted
  Astragalus lentiformis Gray ex Brewer & S. Wats. -- accepted -- lens pod milkvetch
  Astragalus lentiginosus var. fremontii (Gray ex Torr.) S. Wats. -- accepted -- Fremont's milkvetch
  Astragalus leucolobus S. Wats. ex M.E. Jones -- accepted -- Bear Valley milkvetch
  Astragalus matthewsii S. Wats. -- not accepted
  Astragalus megacarpus var. parryi Gray ex S. Wats. -- not accepted
  Astragalus menziesii ssp. virgatus (Gray ex Brewer & S. Wats.) Abrams -- not accepted
  Astragalus misellus S. Wats. -- accepted -- pauper milkvetch
  Astragalus misellus var. misellus S. Wats. -- accepted -- pauper milkvetch
  Astragalus mohavensis S. Wats. -- accepted -- Mojave milkvetch
  Astragalus mohavensis var. mohavensis S. Wats. -- accepted -- Mojave milkvetch
  Astragalus mollissimus var. matthewsii (S. Wats.) Barneby -- accepted -- Matthews' woolly milkvetch, woolly locoweed
  Astragalus mollissimus var. thompsoniae (S. Wats.) Barneby -- accepted -- Thompson woolly milkvetch, Thompson's woolly milkvetch, woolly locoweed
  Astragalus nuttallii var. virgatus (Gray ex Brewer & S. Wats.) Barneby -- accepted -- Nuttall's milkvetch
  Astragalus obscurus S. Wats. -- accepted -- arcane milkvetch
  Astragalus occidentalis (S. Wats.) M.E. Jones -- not accepted
  Astragalus oophorus S. Wats. -- accepted -- egg milkvetch
  Astragalus oophorus var. oophorus S. Wats. -- accepted -- egg milkvetch
  Astragalus porrectus S. Wats. -- accepted -- Lahontan milkvetch
  Astragalus pterocarpus S. Wats. -- accepted -- wing milkvetch, winged milkvetch
  Astragalus purshii var. lectulus (S. Wats.) M.E. Jones -- accepted -- woollypod milkvetch
  Astragalus reventus var. conjunctus (S. Wats.) M.E. Jones -- not accepted
  Astragalus robbinsii var. occidentalis S. Wats. -- accepted -- Lamoille Canyon milkvetch, western milkvetch
  Astragalus sesquiflorus S. Wats. -- accepted -- sandstone milkvetch
  Astragalus tegetarius S. Wats. -- not accepted
  Astragalus terminalis S. Wats. -- accepted -- railhead milkvetch
  Astragalus thompsoniae S. Wats. -- not accepted
  Astragalus trichopodus ssp. antisellii (Gray ex Brewer & S. Wats.) Thorne -- not accepted
  Astragalus troglodytus S. Wats. -- accepted -- creeping milkvetch
  Astragalus vaseyi S. Wats. -- not accepted
  Astragalus webberi Gray ex Brewer & S. Wats. -- accepted -- Webber's milkvetch
  Astragalus wingatanus S. Wats. -- accepted -- Fort Wingate milkvetch
  Atamosco treatiae (S. Wats.) Greene -- not accepted
  Athysanus pusillus var. glabrior S. Wats. -- not accepted
  Atriplex acanthocarpa (Torr.) S. Wats. -- accepted -- tubercled saltbush
  Atriplex acanthocarpa ssp. acanthocarpa (Torr.) S. Wats. -- accepted -- tubercled saltbush, tuburcled saltbush
  Atriplex alaskensis S. Wats. -- accepted -- Alaska orache
  Atriplex argentea ssp. expansa (S. Wats.) Hall & Clements -- accepted -- silverscale, silverscale saltbush
  Atriplex breweri S. Wats. -- not accepted
  Atriplex canescens ssp. linearis (S. Wats.) Hall & Clements -- not accepted
  Atriplex canescens var. angustifolia (Torr.) S. Wats. -- accepted -- fourwing saltbush
  Atriplex canescens var. linearis (S. Wats.) Munz -- accepted -- thinleaf fourwing saltbush
  Atriplex confertifolia (Torr. & Frém.) S. Wats. -- accepted -- shadscale, shadscale saltbush, spiny saltbush
  Atriplex coronata S. Wats. -- accepted -- crownscale
  Atriplex coronata var. coronata S. Wats. -- accepted -- crownscale
  Atriplex corrugata S. Wats. -- accepted -- mat saltbush
  Atriplex elegans ssp. fasciculata (S. Wats.) Hall & Clements -- not accepted
  Atriplex elegans var. fasciculata (S. Wats.) M.E. Jones -- accepted -- wheelscale, wheelscale saltbush
  Atriplex expansa S. Wats. -- not accepted
  Atriplex fasciculata S. Wats. -- not accepted
  Atriplex hymenelytra (Torr.) S. Wats. -- accepted -- desert holly, desertholly, Yuma desert holly
  Atriplex lentiformis (Torr.) S. Wats. -- accepted -- big saltbush, quailbush
  Atriplex lentiformis ssp. breweri (S. Wats.) Hall & Clements -- accepted -- quailbush
  Atriplex lentiformis ssp. lentiformis (Torr.) S. Wats. -- accepted -- big saltbush
  Atriplex lentiformis ssp. torreyi (S. Wats.) Hall & Clements -- not accepted
  Atriplex lentiformis var. breweri (S. Wats.) McMinn -- not accepted
  Atriplex lentiformis var. torreyi (S. Wats.) McMinn -- not accepted
  Atriplex linearis S. Wats. -- not accepted -- thinleaf fourwing saltbush
  Atriplex nuttallii S. Wats. -- accepted -- Nuttall's saltbush
  Atriplex nuttallii auct. non S. Wats. p.p. -- not accepted -- Nuttall's saltbush
  Atriplex parishii S. Wats. -- accepted -- Parish's saltbush
  Atriplex parryi S. Wats. -- accepted -- Parry's saltbush
  Atriplex patula ssp. spicata (S. Wats.) Hall & Clements -- not accepted
  Atriplex patula var. alaskensis (S. Wats.) Welsh -- not accepted
  Atriplex patula var. subspicata (Nutt.) S. Wats. -- not accepted
  Atriplex phyllostegia (Torr. ex S. Wats.) S. Wats. -- accepted -- arrow saltbush, arrow saltweed, leafcover saltweed
  Atriplex polycarpa (Torr.) S. Wats. -- accepted -- cattle saltbush, desert saltbush
  Atriplex powellii S. Wats. -- accepted -- Powell saltbush, Powell's orache, Powell's saltweed
  Atriplex pusilla (Torr. ex S. Wats.) S. Wats. -- accepted -- smallscale, smooth saltbush
  Atriplex saccaria S. Wats. -- accepted -- sack saltbush, sack saltweed, stalked orache
  Atriplex texana S. Wats. -- accepted -- Texas saltbush
  Atriplex torreyi (S. Wats.) S. Wats. -- accepted -- Torrey saltbush, Torrey's quailbush, Torrey's saltbush
  Atriplex truncata (Torr. ex S. Wats.) Gray -- accepted -- wedgescale saltbush
  Atriplex wolfii S. Wats. -- accepted -- Wolf's saltweed
  Atriplex wrightii S. Wats. -- accepted -- Wright saltbush, Wright's saltbush
  Ayenia filiformis S. Wats. -- accepted -- Trans-Pecos ayenia, TransPecos ayenia
  Ayenia glabra S. Wats. -- accepted -- smooth ayenia
  Bahia schaffneri S. Wats. -- accepted -- Schaffner's bahia
  Bauhinia lunarioides Gray ex S. Wats. -- accepted -- Texasplume
  Bernardia myricifolia (Scheele) S. Wats. -- accepted -- mouse's eye, southwest bernardia
  Betula papyrifera var. minor (Tuckerman) S. Wats. & Coult. -- not accepted
  Bidens connata var. pinnata S. Wats. -- not accepted
  Bifora americana Benth. & Hook. f. ex S. Wats. -- accepted -- prairie bishop
  Blepharidachne bigelovii (S. Wats.) Hack. -- accepted -- bigelow desertgrass, Bigelow's desertgrass
  Blepharidachne kingii (S. Wats.) Hack. -- accepted -- King's desertgrass, King's eyelashgrass
  Bloomeria clevelandii S. Wats. -- not accepted
  Boechera fendleri (S. Wats.) W.A. Weber -- not accepted
  Boechera lemmonii (S. Wats.) W.A. Weber -- not accepted
  Boechera perennans (S. Wats.) W.A. Weber -- not accepted
  Boechera pulchra (M.E. Jones ex S. Wats.) W.A. Weber -- not accepted
  Boerhavia coulteri (Hook. f.) S. Wats. -- accepted -- Coulter spiderling, Coulter's spiderling
  Boerhavia pterocarpa S. Wats. -- accepted -- Apache Pass spiderling
  Boerhavia torreyana (S. Wats.) Standl. -- not accepted
  Boerhavia triquetra S. Wats. -- accepted -- slender spiderling
  Boisduvalia densiflora (Lindl.) S. Wats. -- not accepted
  Bolandra oregana S. Wats. -- accepted -- northern false coolwort
  Bouteloua chondrosioides (Kunth) Benth. ex S. Wats. -- accepted -- sprucetop grama
  Bouteloua trifida var. burkii (Scribn. ex S. Wats.) Vasey ex L.H. Dewey -- accepted -- red grama
  Brahea filifera hort. ex S. Wats. -- not accepted
  Brandegea bigelovii (S. Wats.) Cogn. -- accepted -- desert starvine
  Braya alpina var. americana (Hook.) S. Wats. -- not accepted
  Braya alpina var. glabella (Richards.) S. Wats. -- not accepted
  Brickellia longifolia S. Wats. -- accepted -- long leaf brickellbush, longleaf brickellbush
  Brickellia longifolia var. longifolia S. Wats. -- accepted -- longleaf brickellbush
  Brodiaea bridgesii S. Wats. -- not accepted
  Brodiaea crocea (Wood) S. Wats. -- not accepted
  Brodiaea douglasii S. Wats. -- not accepted
  Brodiaea douglasii var. howellii (S. Wats.) M.E. Peck -- not accepted
  Brodiaea filifolia S. Wats. -- accepted -- Thread-leaved brodiaea, threadleaf brodiaea
  Brodiaea gracilis S. Wats. -- not accepted
  Brodiaea hendersonii (Greene) S. Wats. -- not accepted
  Brodiaea howellii S. Wats. -- not accepted
  Brodiaea laxa (Benth.) S. Wats. -- not accepted
  Brodiaea lemmoniae S. Wats. -- not accepted
  Brodiaea minor (Benth.) S. Wats. -- accepted -- vernalpool brodiaea
  Brodiaea palmeri S. Wats. -- not accepted
  Brodiaea peduncularis (Lindl.) S. Wats. -- not accepted
  Brodiaea stellaris S. Wats. -- accepted -- starflower brodiaea
  Brongniartia minutifolia S. Wats. -- accepted -- littleleaf greentwig
  Caiandra schottii Torr. Ex S. Wats. -- accepted
  Calandrinia ambigua (S. Wats.) T.J. Howell -- not accepted
  Calandrinia breweri S. Wats. -- accepted -- Brewer's redmaids
  Calandrinia cotyledon S. Wats. -- not accepted
  Calandrinia howellii S. Wats. -- not accepted
  Calandrinia oppositifolia S. Wats. -- not accepted
  Calathea crotalifera S. Wats. -- accepted -- rattlesnake plant
  Calliandra coulteri S. Wats. -- accepted -- Coulter's stickpea
  Calliandra schottii Torr. ex S. Wats. -- accepted -- Schott false mesquite, Schott's stickpea
  Callitriche sepulta S. Wats. -- not accepted
  Calochortus aureus S. Wats. -- accepted -- golden mariposa lily
  Calochortus caeruleus (Kellogg) S. Wats. -- accepted -- beavertail grass
  Calochortus catalinae S. Wats. -- accepted -- Santa Catalina mariposa lily
  Calochortus clavatus S. Wats. -- accepted -- clubhair mariposa lily
  Calochortus clavatus var. clavatus S. Wats. -- accepted -- clubhair mariposa lily
  Calochortus coeruleus (Kellogg) S. Wats. -- not accepted -- beavertail grass
  Calochortus coeruleus var. coeruleus (Kellogg) S. Wats. -- accepted -- beavertail grass
  Calochortus eurycarpus S. Wats. -- accepted -- bigpod mariposa lily, white mariposa lily
  Calochortus flexuosus S. Wats. -- accepted -- straggling mariposa lily, weakstem mariposa lily, winding mariposa lily
  Calochortus greenei S. Wats. -- accepted -- Greene's mariposa lily
  Calochortus gunnisonii S. Wats. -- accepted -- Gunnison mariposa lily, Gunnison's mariposa lily
  Calochortus gunnisonii var. gunnisonii S. Wats. -- accepted -- Gunnison mariposa lily, Gunnison's mariposa lily
  Calochortus howellii S. Wats. -- accepted -- Howell's mariposa lily
  Calochortus longebarbatus S. Wats. -- accepted -- longbeard mariposa lily
  Calochortus longebarbatus var. longebarbatus S. Wats. -- accepted -- longbeard mariposa lily
  Calochortus luteus var. citrinus S. Wats. -- not accepted
  Calochortus luteus var. oculatus S. Wats. -- not accepted
  Calochortus nudus S. Wats. -- accepted -- naked mariposa lily
  Calochortus nuttallii var. aureus (S. Wats.) Ownbey -- not accepted
  Calochortus palmeri S. Wats. -- accepted -- Palmer's mariposa lily
  Calochortus palmeri var. palmeri S. Wats. -- accepted -- Palmer's mariposa lily
  Calochortus venustus var. purpurascens S. Wats. -- not accepted
  Calyptridium quadripetalum S. Wats. -- not accepted
  Calyptridium roseum S. Wats. -- not accepted
  Calystegia longipes (S. Wats.) Brummitt -- accepted -- Paiute false bindweed, plateau morningglory
  Camassia cusickii S. Wats. -- accepted -- Cusick's camas
  Camassia howellii S. Wats. -- accepted -- Howell's camas
  Camassia leichtlinii (Baker) S. Wats. -- accepted -- camas, great camas, large camas
  Camassia leichtlinii ssp. leichtlinii (Baker) S. Wats. -- accepted -- large camas
  Camissonia boothii var. villosa (S. Wats.) Cronq. -- not accepted
  Camissonia cheiranthifolia ssp. suffruticosa (S. Wats.) Raven -- accepted -- beach suncup
  Camissonia claviformis var. purpurascens (S. Wats.) Cronq. -- not accepted
  Camissonia guadalupensis (S. Wats.) Raven -- accepted -- Guadalupe suncup
  Camissonia guadalupensis (S. Wats.) Raven -- accepted -- Guadalupe suncup
  Camissonia heterochroma (S. Wats.) Raven -- accepted -- Shockley's evening-primrose, Shockley's suncup
  Camissonia multijuga (S. Wats.) Raven -- accepted -- frost-stem suncup, froststem suncup
  Camissonia palmeri (S. Wats.) Raven -- accepted -- Palmer evening-primrose, Palmer's suncup, sagebrush suncup
  Camissonia parryi (S. Wats.) Raven -- accepted -- Parry's suncup, red-clay suncup, redclay suncup
  Camissonia pterosperma (S. Wats.) Raven -- accepted -- wing-fruit suncup, wingfruit suncup, wingseed suncup
  Camissonia pubens (S. Wats.) Raven -- accepted -- hairy suncup
  Camissonia refracta (S. Wats.) Raven -- accepted -- narrow-leaf suncup, narrowleaf suncup
  Campanula floridana S. Wats. ex Gray -- accepted -- Florida bellflower
  Canbya aurea S. Wats. -- accepted -- golden pygmypoppy, yellow canbya
  Cardamine breweri S. Wats. -- accepted -- Brewer bittercress, Brewer's bittercress
  Cardamine breweri var. breweri S. Wats. -- accepted -- Brewer's bittercress
  Cardamine californica var. pachystigma (S. Wats.) O.E. Schulz -- not accepted
  Cardamine cordifolia var. lyallii (S. Wats.) A. Nels. & J.F. Macbr. -- accepted -- heartleaf bittercress, Lyall's bittercress
  Cardamine gambelii S. Wats. -- not accepted
  Cardamine lyallii S. Wats. -- not accepted
  Cardamine occidentalis (S. Wats. ex B.L. Robins.) T.J. Howell -- accepted -- big western bittercress
  Cardamine pachystigma (S. Wats.) Rollins -- accepted -- serpentine bittercress
  Cardamine pachystigma var. pachystigma (S. Wats.) Rollins -- accepted -- serpentine bittercress
  Cardamine pratensis var. occidentalis S. Wats. ex B.L. Robins. -- not accepted
  Cardiospermum dissectum (S. Wats.) Radlk. -- accepted -- Chihuahuan balloonvine
  Cassia armata S. Wats. -- not accepted
  Castilleja exserta ssp. latifolia (S. Wats.) Chuang & Heckard -- accepted -- wideleaf Indian paintbrush
  Castilleja flava S. Wats. -- accepted -- yellow Indian paintbrush, yellow paintbrush
  Castilleja flava var. flava S. Wats. -- accepted -- yellow Indian paintbrush
  Castilleja pilosa (S. Wats.) Rydb. -- accepted -- hairy paintbrush, parrothead Indian paintbrush
  Castilleja pilosa var. pilosa (S. Wats.) Rydb. -- accepted -- parrothead Indian paintbrush
  Cathartolinum kingii (S. Wats.) Small -- not accepted
  Caulanthus S. Wats. -- accepted -- wild cabbage, wildcabbage
  Caulanthus amplexicaulis S. Wats. -- accepted -- claspingleaf wild cabbage
  Caulanthus amplexicaulis var. amplexicaulis S. Wats. -- accepted -- claspingleaf wild cabbage
  Caulanthus californicus (S. Wats.) Payson -- not accepted -- california jewelflower
  Caulanthus cooperi (S. Wats.) Payson -- accepted -- Cooper's wild cabbage, Cooper's wildcabbage
  Caulanthus coulteri S. Wats. -- accepted -- Coulter's wild cabbage
  Caulanthus coulteri var. lemmonii (S. Wats.) Munz -- not accepted
  Caulanthus crassicaulis (Torr.) S. Wats. -- accepted -- thick-stem wild cabbage, thickstem wild cabbage, thickstem wildcabbage
  Caulanthus crassicaulis var. crassicaulis (Torr.) S. Wats. -- accepted -- thick-stem wild cabbage, thickstem wild cabbage, thickstem wildcabbage
  Caulanthus glaucus S. Wats. -- accepted -- bigleaf wildcabbage, glaucous wild cabbage
  Caulanthus inflatus S. Wats. -- accepted -- desert candle
  Caulanthus lemmonii S. Wats. -- not accepted
  Caulanthus pilosus S. Wats. -- accepted -- hairy wild cabbage, hairy wildcabbage
  Ceanothus decumbens S. Wats. -- not accepted
  Ceanothus herbaceus var. pubescens (Torr. & Gray ex S. Wats.) Shinners -- not accepted
  Ceanothus ovatus var. pubescens Torr. & Gray ex S. Wats. -- not accepted
  Ceanothus parvifolius (S. Wats.) Trel. -- accepted -- littleleaf ceanothus
  Ceanothus pubescens (Torr. & Gray ex S. Wats.) Rydb. ex Small -- not accepted
  Ceiba acuminata (S. Watson) Rose -- accepted -- pochote
  Celosia palmeri S. Wats. -- accepted -- Palmer's cock's comb
  Celtis brevipes S. Wats. -- not accepted
  Celtis laevigata var. brevipes (S. Wats.) Sarg. -- accepted -- sugar hackberry, sugarberry
  Centaurium nuttallii (S. Wats.) Heller -- not accepted
  Cerastium sericeum S. Wats. -- not accepted
  Cercis canadensis ssp. texensis (S. Wats.) E. Murr. -- not accepted
  Cercis canadensis var. texensis (S. Wats.) M. Hopkins -- accepted -- California redbud, Texas redbud
  Cercocarpus intricatus S. Wats. -- accepted -- littleleaf mountain mahogany, littleleaf mountainmahogany
  Cercocarpus intricatus var. intricatus S. Wats. -- accepted -- littleleaf mountain mahogany
  Cercocarpus ledifolius var. intricatus (S. Wats.) M.E. Jones -- not accepted
  Cercocarpus montanus var. glaber (S. Wats.) F.L. Martin -- accepted -- birchleaf mountain mahogany
  Cercocarpus montanus var. paucidentatus (S. Wats.) F.L. Martin -- accepted -- hairy mountain mahogany, mountainmahogany
  Chaerophyllum dasycarpum (Hook. ex S. Wats.) Nutt. ex Small -- not accepted
  Chaerophyllum tainturieri var. dasycarpum Hook. ex S. Wats. -- accepted -- hairyfruit chervil
  Chaetadelpha Gray ex S. Wats. -- accepted -- skeletonweed
  Chaetadelpha wheeleri Gray ex S. Wats. -- accepted -- Wheeler's chaetadelpha, Wheeler's skeletonweed
  Chaetadelphia wheeleri Gray and S. Wats. -- accepted
  Chamaesyce gracillima (S. Wats.) Millsp. -- accepted -- Mexican sandmat
  Chamaesyce ocellata ssp. rattanii (S. Wats.) Koutnik -- accepted -- Rattan's sandmat
  Chamaesyce platysperma (Engelm. ex S. Wats.) Shinners -- accepted -- flat-seed sandmat, flatseed sandmat
  Chamaesyce serpyllifolia ssp. hirtella (Engelm. ex S. Wats.) Koutnik -- accepted -- thymeleaf sandmat
  Chamaesyce serpyllifolia var. hirtella (Engelm. ex S. Wats.) L.C. Wheeler -- not accepted
  Cheirinia inconspicua (S. Wats.) Britt. -- not accepted
  Chenopodium californicum (S. Wats.) S. Wats. -- accepted -- California goosefoot
  Chenopodium farinosum (S. Wats.) Standl. -- not accepted
  Chenopodium fremontii S. Wats. -- accepted -- Fremont goosefoot, Fremont's goosefoot
  Chenopodium fremontii var. fremontii S. Wats. -- accepted -- Fremont goosefoot, Fremont's goosefoot
  Chenopodium fremontii var. incanum S. Wats. -- not accepted
  Chenopodium incanum (S. Wats.) Heller -- accepted -- mealy goosefoot, nealy goosefoot
  Chenopodium incanum var. incanum (S. Wats.) Heller -- accepted -- mealy goosefoot
  Chenopodium leptophyllum (Moq.) Nutt. ex S. Wats. -- accepted -- narrowleaf goosefoot, narrowleaf lambsquarters, narrowleaved goosefoot, slimleaf goosefoot, slimleaf lambsquarters
  Chenopodium leptophyllum var. oblongifolium S. Wats. -- not accepted
  Chenopodium leptophyllum var. subglabrum S. Wats. -- not accepted
  Chenopodium macrospermum var. farinosum (S. Wats.) J.T. Howell -- accepted -- largeseed goosefoot
  Chenopodium oblongifolium (S. Wats.) Rydb. -- not accepted
  Chenopodium olidum S. Wats., non W. Curtis -- not accepted
  Chenopodium pratericola var. oblongifolium (S. Wats.) H.A. Wahl -- not accepted
  Chenopodium rubrum var. humile (Hook.) S. Wats. -- not accepted
  Chenopodium rubrum var. humile auct. non (Hook.) S. Wats. -- not accepted
  Chenopodium subglabrum (S. Wats.) A. Nels. -- accepted -- smooth goosefoot
  Chlorocrambe hastata (S. Wats.) Rydb. -- accepted -- spearhead
  Chlorogalum parviflorum S. Wats. -- accepted -- smallflower soap plant
  Chorizanthe breweri S. Wats. -- accepted -- San Luis Obispo spineflower
  Chorizanthe cuspidata S. Wats. -- accepted -- San Francisco spineflower
  Chorizanthe cuspidata var. cuspidata S. Wats. -- accepted -- San Francisco spineflower
  Chorizanthe fernandina S. Wats. -- not accepted
  Chorizanthe leptoceras (Gray ex Benth.) S. Wats. -- not accepted
  Chorizanthe palmeri S. Wats. -- accepted -- Palmer's spineflower
  Chorizanthe parryi S. Wats. -- accepted -- San Bernardino spineflower
  Chorizanthe parryi var. fernandina (S. Wats.) Jepson -- accepted -- San Fernando Valley spineflower
  Chorizanthe parryi var. parryi S. Wats. -- accepted -- San Bernardino spineflower
  Chorizanthe spinosa S. Wats. -- accepted -- Mojave spineflower
  Chorizanthe thurberi (Gray ex Benth.) S. Wats. -- not accepted
  Chorizanthe valida S. Wats. -- accepted -- Sonoma spineflower
  Chorizanthe wheeleri S. Wats. -- accepted -- Santa Barbara spineflower
  Chorizanthe xanti S. Wats. -- accepted -- Riverside spineflower
  Chorizanthe xanti var. xanti S. Wats. -- accepted -- Riverside spineflower
  Cicuta bolanderi S. Wats. -- not accepted
  Cicuta maculata var. bolanderi (S. Wats.) Mulligan -- accepted -- Bolander cicuta, common water hemlock, poison parsnip, spotted cowbane, spotted parsley, spotted water hemlock, water hemlock
  Cimicifuga arizonica S. Wats. -- accepted -- Arizona bugbane
  Cimicifuga laciniata S. Wats. -- accepted -- Mt. Hood bugbane
  Cistanthe ambigua (S. Wats.) Hershkovitz -- accepted -- desert pussypaws
  Cistanthe quadripetala (S. Wats.) Hershkovitz -- accepted -- fourpetal pussypaws
  Cistanthe rosea (S. Wats.) Hershkovitz -- accepted -- rosey pussypaws, rosy pussypaws
  Cladium californicum (S. Wats.) O'Neill -- accepted -- California sawgrass
  Cladium mariscus var. californicum S. Wats. -- not accepted
  Claytonia caroliniana var. lanceolata (Pursh) S. Wats. -- not accepted
  Claytonia cordifolia S. Wats. -- accepted -- heartleaf springbeauty
  Claytonia howellii (S. Wats.) Piper -- not accepted
  Claytonia megarhiza (Gray) Parry ex S. Wats. -- accepted -- alpine springbeauty
   

A gray bar
Date Generated:  
Sun Feb 8 2009 05:23:39 MST