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included four grasses and three forts. Introduced species provided 90.6 percent of the <br />mean vegetation cover. Interestingly, introduced species accounted for only 46.7 <br />percent of the number of individual species, as native fortis were represented in greater <br />numbers in 1997. Seasonality of species was entirely cool season. Table 3 provides a <br />listing and characterization of the plant species encountered during cover sampling at <br />the study azea. <br />Siz species of the fifteen encountered during cover sampling accounted for greater than <br />three percent relative cover. These species were; Bromus mermis with 55.40 percent <br />relative cover, Poa pratensrs with 14.20 percent relative cover, and the undesirable <br />Conrolvulus arrensis providing 11.22 percent relative cover, Erigeron Bagellaris with <br />4.40 percent relative cover, Lupmus caudatus with 3.84 percent relative cover, and <br />Taraxacum oltscina/e providing 3.69 percent relative cover. Of these siz species, two <br />were introduced perennial grasses, two were perennial native forts, one was an <br />introduced perennial fort, and one was an introduced annual fort. <br />_g_ <br />