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The dominat grass is bluebunch wheatgrass, Agropyron <br />spicatum. Other grasses present include: slender wheat- <br />grass; Indian ricegrass, Cryzopsis hymenoides; cheatgrass, <br />• Bromua tectorum; and bluegrass, Poa app. A sedge, Carex <br />ap., was sparsely represented under the oak. Forbs <br />present include: little sunflower, SeZiantheZla uniflora; <br />sulfurflower; and yarrow. <br />2.6 Wet Meadow Community <br />The alluvial soils along Hayden Gulch that have a <br />high water table are dominated by a community composed <br />of sedge, Carex spp.; shrubby willows, Salix spp.; cattail, <br />Typha sp.; and several species of grasses and fo_rbs adapted <br />to moist habitats. <br />3.0 Endangered and Threatened Species <br />William Weber, Curator of the Herbarium, University <br />of Colorado, verified the identity of all vascular plants <br />collected on the study site and adjacent areas, These <br />plants have been preserved in a reference collection. <br />The majority of plants are identified to~the species <br />level. The taxonomic characteristics of many plants had <br />deteriorated due to the late sampling period, and thus, <br />• could be identified only to the genus level. <br />None of the plants identified to species appears <br />on the U.S. Department of Interior's "Endangered and <br />Threatened Species (Plants)!'* as published in the Federal <br />Register, Wednesday, June 16, 1976. However, four plants <br />identified to the genus level (Arabia, Aatragalus, PhaceZia <br />and Festuca) belong to genera which have one or more species <br />on the "Endangered and Threatened" list. Further analysis <br />of the reference collection, review of literature on the <br />Endangered plants are those species in danger of <br />extinction throughout all or a significant portion <br />of their ranges. Existence may be endangered because <br />of the destruction, drastic modifications, or severe <br />curtailment of habitat, or because of overexploitation, <br />disease, predation, or even unkown reasons. Plant <br />groups from very limited areas, e.g., the type <br />localities only, or from restricted fragile habitats <br />usually are considered endangered. <br />Threatened plants are those species likely to become <br />endangered within the foreseeable future throughout <br />all or a.significant portion of their ranges. This <br />includes species categorized as rare, very rare, or <br />. depleted. <br />_=13- <br />