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3 <br />Table 3-5 <br />GMUG Sensitive Plants, Habitats, and Occurrence <br /> Occurrence Habitat <br />Species' Scientific on the Known or Habitat Z <br /> Name GMUG' Likely in <br /> Project Area <br />Sun-loving Tlaalictru~n Sparsely vegetated, steep shale talus slopes <br />meadowrue heliophilum Known No of the Green River formation. Elev. 6,300- <br /> 8,800 ft. <br /> <br />Lesser <br />Utricularia Fixed aquatic species found in low energy <br /> <br />bladderwort <br />minor down No environments that are up to 12 inches (Neid <br /> 2006). <br />Park Astragalus Likel <br />y No Moist sedge meadows and grassy areas <br />milkvetch leptalus along stream banks. <br />Arizona Sedge meadows and wet drainage ways in <br />willow Salix arizonica Likely No subalpine coniferous forests. Elev. 10,000- <br /> 11,200 ft. <br /> Plzacelia Restricted to barren dark gray and brown <br />Debeque scopulina var. <br />Known <br />No clay soils in mixed conifer forests and <br />phacelia submutica pinyon juniper woodlands from 4,921 to <br /> (C'andidate) 6,200 feet (Ladyman 2003). <br />~uur~e5: <br />' Rocky Mountain Region TEPS Species List 2006, <br />z Spackman and others 2002 unless otherwise noted. <br />Noxious Weeds and Invasive Species <br />Noxious weeds exist in the general area. These <br />species are aggressive and compete with the <br />more desirable native species. Newly disturbed <br />areas are particularly susceptible to noxious <br />weed infestations. Regulations require active <br />control of noxious weeds in the areas where <br />new infestations occur. <br />The most prevalent Colorado listed noxious <br />weeds on the GMUG NF, Paonia Ranger Dis- <br />trict are Canada thistle (Cirsium arvense); <br />musk thistle (Carduus nutans); yellow toadflax <br />(Linaria vulgaris); houndstongue (Hieracium <br />cynoglossoides); oxeye daisy (Leucanthemum <br />vulgare); whitetop or hoary cress (Carda~°ia <br />draba); and scentless chamomile ((Antlzemis <br />arvensis) (USDA FS 2006b). In addition, leafy <br />spurge (Euphorbia esula), common teasel <br />(Dipsacus fullonum) and tansy ragwort (Se- <br />necio jacobii) have been located and treated in <br />the Dry Fork area. The Paonia Ranger District <br />and MCC. have been treating noxious weeds in <br />the Dry Fork area since 1998. In 2006, over 30 <br />sites were treated in or near the project area. <br />Species treated were Canada thistle, musk <br />thistle, yellow toadflax, houndstongue, white <br />top and common teasel. A full inventory has <br />not been conducted to determine all species or <br />the extent of noxious weeds in the project area. <br />Direct and Indirect Effects <br />Alternative 1 <br />Under the No Action Alternative, there would <br />be no impact on sensitive plants, no increased <br />need for noxious weed treatment, and no <br />impacts on upland and riparian vegetation from <br />access road and well pad construction. <br />Management would continue as it can ently <br />exists. Health and vigor of plant species would <br />continue to be influenced by natural processes <br />and managed land use activities such as <br />livestock grazing. <br />. <br /> <br />• <br />84 Deer Creek Ventilation Shaft and E Seam Methane Drainage Wells FEIS <br />