Laserfiche WebLink
4 - 69 <br />• <br />u <br /> <br />4.5.11 PLANT SPECIES LIST <br />A total of 88 species of vascular plants was identified in the study area during the 1980 <br />growing season. These 88 species encompass 29 families and 74 genera. Life forms are <br />represented as follows: 3 trees, 21 shrubs and subshrubs, 17 graminoids, 44 forts, and 3 <br />succulents. The flora of the site is characterized by the presence of numerous annual forts, <br />introduced annual grasses, a diversity of native deciduous shrubs, and perennial, native, cool <br />season mid-grasses with a bunch grass growth form. See Table 4.5-13. <br />Twenty-one plant species or 24 percent of the total are introductions from outside of the <br />region. Introduced species consist of 1 shrub, 4 grasses, and 16 forts. One introduced fort, <br />whitetop, is listed by Thornton et al. (1974) as being a prohibited noxious weed, especially <br />difficult to control. Whitetop occurred only in the Greasewood Shrubland community with a low <br />cover of 0.6 percent. Desert princes plume, Stan/eya pinnata, a native fort found scattered in <br />the Juniper Woodland community, is cited as being a primary selenium indicator by the Wyoming <br />Department of Environmental Quality Vegetation Guideline No. 2, March 9, 1979. Desert <br />Princes plume did not occur in the cover transect. <br />There are no state or federally listed threatened or endangered plan species present on the <br />study site. <br />M~ <br />Volume 1 <br />4-29.96 <br />