Regional Lists File Structure/Description There are thirteen(13) files, each contain the Plant Species for a particular region: Region 1 - 2869 Plant Species (136,384 bytes) Region 2 - 3326 Plant Species (160,261 bytes) Region 3 - 2357 Plant Species (114,430 bytes) Region 4 - 1200 Plant Species ( 62,720 bytes) Region 5 - 1523 Plant Species ( 77,619 bytes) Region 6 - 2256 Plant Species (113,333 bytes) Region 7 - 1429 Plant Species ( 75,729 bytes) Region 8 - 1629 Plant Species ( 83,182 bytes) Region 9 - 2072 Plant Species (102,582 bytes) Region 0 - 1933 Plant Species ( 96,988 bytes) Region A - 1037 Plant Species ( 53,215 bytes) Region C - 895 Plant Species ( 51,292 bytes) Region H - 1027 Plant Species ( 53,998 bytes) Structure: FIELD TYPE SIZE SCI_NAME CHARACTER 35 AUTHOR CHARACTER 55 C_NAME CHARACTER 35 NAT_IND CHARACTER 15 R_IND CHARACTER 6 HABIT CHARACTER 10 Description: SCI_NAME (Scientific Name) The genus and species applied to the taxon by the National List of Scientific Plant Names (1982). AUTHOR The author of the scientific name as cited by the National List of Scientific Plant Names (1982) C_NAME (Common Name) A popular name applied to the species. Common name selection generally follows Common Names for North American Plants (Kartesz and Thieret, in press), but some common names follow current common name list maintained by the Soil Conservation Service). NAT_IND (National Range Of Indicators) The National Indicators reflect the range of estimated probabilities (expressed as a frequency of occurrence) of a species occurring in wetlands versus non wetland across the entire distribution of the species. A frequency, for example, of 67%-99% (Facultative Wetland) means that 67%-99% of sample plots containing the species randomly selected across the range of the species would be wetland. A question mark (?) following an Indicator denotes a tentative assignment based on the botanical literature and not confirmed by regional review. When two indicators are given, they reflect the range from the lowest to the highest frequency of occurrence in wetlands across the regions in which the species is found. A positive (+) or negative (-) sign was used with the Facultative Indicator categories to more specifically define the regional frequency of occurrence in wetlands. The positive sign indicates a frequency toward the higher end of the category (more frequently found in wetlands), and a negative sign indicates a frequency toward the lower end of the category (less frequently found in wetlands). Indicator categories: Obligate Wetland (OBL). Occur almost always (estimated probability >99%) under natural conditions in wetlands. Facultative Wetland (FACW). Usually occur in wetlands (estimated probability 67%-99%), but occasionally found in non wetlands. Facultative (FAC). Equally likely to occur in wetlands or non wetlands (estimated probability 34%-66%). Facultative Upland (FACU). Usually occur in non wetlands (estimated probability 67%-99%), but occasionally found on wetlands (estimated probability 1%-33%). Obligate Upland (UPL). Occur in wetlands in another region, but occur almost always (estimated probability >99%)under natural conditions in non wetlands on the region specified. If a species does not occur in wetlands in any region, it is not on the National List. The wetland Indicator categories should not be equated to degrees of wetness. Many obligate wetland species occur in permanently or semipermanently flooded wetlands, but a number if obligates also occur and some are restricted to wetlands which are only temporarily or seasonally flooded. The facultative upland species include a diverse collection of plants which range from weedy species adapted to exist in a number of environmentally stressful or disturbed sites (including wetlands) to species in which a portion of the gene pool (an ecotype) always occurs in wetlands. Both the weedy and ecotype representatives of the facultative upland category occur in seasonally and semipermanently flooded wetlands. R_IND (Regional Indicator) The estimated probability (likelihood) of a species occurring in wetlands versus non wetlands in the region. Regional Indicators reflect the unanimous agreement of the Regional Interagency Review Panel. If a regional panel was not able to reach a unanimous decision on a species, NA (no agreement) was recorded on the regional indicator (R_IND) field. An NI (no indicator) was recorded for those species for which insufficient information was available to determine an indicator status. A nonoccurrence (NO)designation indicates that the species does not occur in that region, An asterisk (*) following a regional Indicator identifies tentative assignments based on limited information from which to determine the indicator status. In the listings for the States divided into two regions (Montana, Wyoming, and Colorado), both regional Indicators are reported. CODE REGION STATES(S) IN REGION 1 Northeast ME,NH,VT,MA,CT,RI,WV,KY,NY,PA,NJ,MD,DE,VA,OH 2 Southeast NC,SC,GA,FL,TN,AL,MS,LA,AR 3 North Central MO,IA,MN,MI,WI,IL,IN 4 North Plains ND,SD,MT,(Eastern),WY(Eastern) 5 Central Plains NE,KS,CO(Eastern) 6 South Plains TX,OK 7 Southwest AZ,NM 8 Intermountain NV,UT,CO(WESTERN) 9 Northwest WA,OR,ID,MT(Western),WY(WESTERN) 0 California CA A Alaska AK C Caribbean PR(Puerto Rico), VI(U.S. Virgin Isls.), CZ(Canal Zone), SQ(Swan Isls.) H Hawaii HI(Hawaiian Isls.),AQ(American Samoa), GU(Guam), IQ(U.S. Misc. Pacific Isls.), MQ(Midway Isls.), TQ(Trust territories of the Pacific Isls.), WQ(Wake Isl.), YQ(Ryukyu Isls. Southern) HABIT The plant characteristics and life forms assigned to each species in the National List of Scientific Plant Names (1982) and by the Soil Conservation Service. Family names are listed alphabetically under specific life forms restricted to these families. The HABIT symbols are combined to describe the life form of the species (e.g., ANG means annual native grass, IT means introduced tree). SYMBOL Characteristic or SYMBOL Characteristic or Life Form Life Form --------------------------- --------------------------- A Annual G Grass B Biennial POACEAE C Clubmoss GL Grasslike LYCOPODIACEAE CYPERACEAE SELAGINELLACEAE JUNCACEAE E Emergent H Partly woody @ Epiphytic HS Half shrub F Forb H2 Horsetail / Floating EQUISETACEAE F3 Fern I Introduced ADIANTACEAE N Native ASPLENIACEAE P Perennial BLECHNACEAE + Parasitic CYATHEACEAE P3 Pepperwort DAVALLIACEAE MARSILEACEAE DENNSTAEDTIACEAE Q Quillwort DRYOPTERIDACEAE ISOETACEAE GLEICHENIACEAE S Shrub GRAMMITIDACEAE - Saprophytic HYMENOPHYLLACEAE Z Submerged LOMARIOPSIDACEAE $ Succulent MARATTIACEAE T Tree OPHIOGLOSSACEAE V Herbaceous Vine OSMUNDACEAE W Waterfern PARKERIACEAE AZOLLACEAE POLYPODIACEAE SALVINIACEAE PSILOTACEAE WV Woody vine PTERIDACEAE SCHIZAEACEAE