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West Elk Mine <br />forty-three species were introduced. None of the species encountered were designated noxious <br />weed species. <br />Endan¢ered, Threatened, or Rare Plant Saecies <br />U.S. Fish and Wildlife Service (USFWS) lists of federally listed and candidate species for <br />the GMUG National Forests (February 2003) and the BLM Montrose Field Office (July 17, <br />2003) were reviewed. USFWS biologist Al Pfister (2003) confirmed that the lists are <br />current with the exception of removal of the southwestern willow flycatcher. Two listed <br />plant species occur in these administrative units. The clay-loving wild buckwheat <br />(Eriogonum pefinophilum) is restricted to clay adobe hills of the Mancos shale formation. <br />The Uinta Basin hookless cactus (Sclerocactus glaucus) occurs on gravelly flood terraces <br />and sbale mesas and slopes with scattered boulders. Neither species is known to occur <br />above 7,000 feet elevation or within about 20 miles of the permit area. No federally listed <br />threatened and endangered plant species were found anywhere within the permit area by <br />surveys and studies conducted From 1976 through 1996. No critical habitat for any <br />federally listed plant species has been designated within the permit area. <br />Several species listed as rare or imperiled by the Colorado Natural Heritage Program <br />(CNHP) or as sensitive by the USFS or BLM may occur in the permit area. None are <br />known to occur in the permit area, but suitable habitat exists. <br />The yellow lady's-slipper (Cypripedium calceolus ssp. parviflorum) is a USFS Region 2 <br />sensitive species, and ranked imperiled in Colorado by CNHP. The yellow lady's slipper is <br />a small forb that occurs in aspen, ponderosa pine, and Douglas-fir forests, and could occur <br />in aspen and Douglas-£tr forests in the permit area. The nearest known occurrence is in <br />Montrose County about 30 miles south of the project area (CNHP 1997). <br />The Rocky Mountain thistle (Cirsium perplexans) is a USFS Region 2 sensitive species, <br />BLM Colorado sensitive species, and ranked globally and state imperiled by CNHP. This <br />native thistle is endemic to western Colorado and occurs in sagebrush, pinyon-juniper, and <br />mountain shrub communities, typically on disturbed sites. The species could occur in <br />shrubland, pinyon-juniper, or dry meadow communities in the permit area. The nearest <br />known occurrence is in Delta County about 6 miles west of the permit area. <br />The Colorado desert-parsley (Lomatium concinnum) is a BLM sensitive species, ranked as <br />globally and state imperiled by CNHP. This small perennial forb is endemic to western <br />Colorado and occurs in pinyon-juniper and mountain shrub communities. It could occur <br />in those communities in the permit area. The nearest known occurrence is in Delta County <br />about 6 miles west of the permit area. <br />The Montrose bladderpod (Lesquerella vicina) is a BLM sensitive species, ranked as <br />globally and state imperiled by CNHP. This small perennial forb is endemic to west- <br />central Colorado and occurs in pinyon-juniper and mountain shrub communities. It could <br />occur in those communities in the permit area. The nearest known occurrence is in <br />Montrose County about 20 miles southwest of the permit area. <br />1.04-158 Revised November 1004 PRIO <br />