These data identify the areas where final critical habitat has been
mapped by the USFWS for plant species in the western United States.
These data were compiled by the Conservation Biology Institute (CBI)
from a series of individual shapefiles published by the USFWS
(http://criticalhabitat.fws.gov/). For more information on the process
for mapping the critical habitat for each species, please see the
metadata for each species listed on the USFWS web site. Critical
habitat designations have not been made for all listed endangered
species. Where critical habitat has been mapped, this dataset only
contains those species for which GIS datasets have been made publicly
available. Other critical habitat maps exist for some species in
non-GIS formats only, and are therefore not represented within this
dataset. These data are to be considered approximate only, and should
not be used for legal purposes. For legal use, please refer to the
Federal Register documents for each species (see
http://criticalhabitat.fws.gov/). Some discrepancies, including
spelling errors and omissions, were encountered during processing of
species common and scientific names. To the degree possible, names were
correctly aligned with their representation within the USDA Plants
Database (http://plants.usda.gov/). Data in this file represent
available data through April 2008.