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PLANT <br />SYMBOL COMMON NAME <br />* * * * * ** * * * * * * * * * ** <br />SHRUBS AND HALF - SHRUBS <br />ARTW* WYOMING BIG SAGEBRUSH <br />ATCO SHADSCALE <br />EULA5 WINTERFAT <br />ARSP5 BUD SAGEBRUSH <br />ATCA2 FOURWING SALTBUSH <br />ATGA NUTTALL SALTBUSH <br />OPPO PLAINS PRICKLYPEAR <br />CHNAA TALL RABBITBRUSH <br />COMP. <br />SCIENTIFIC NAME 1/ PERCENT <br />* * * * * * * * * * * * * * * * ** * * * * * ** <br />c. <br />page 3 #327 <br />ARTEMISIA TRIDENTATA <br />WYOMINGENSIS <br />ATRIPLEX CONFERTIFOLIA <br />EUROTIA LANATA <br />ARTEMISIA SPINESCENS <br />ATRIPLEX CANESCENS <br />ATRIPLEX GARDNERI <br />OPUNTIA POLYACANTHA <br />CHRYSOTHAMNUS NAUSEOSUS <br />CONSIMILIS <br />1/ Names according to National List of Scientific Plant Names SCS -TP -159. <br />*Symbol not listed in National List of Scientific Plants. <br />If ecological retrogression is cattle induced, the <br />percentage and production of desirable plants such <br />as western wheatgrass, Indian ricegrass, <br />needleandthread, Nevada bluegrass, tapertip onion, <br />winterfat, Nuttall saltbush and fourwing saltbush <br />will decrease. If retrogression is sheep induced, <br />the percentage and production of desirable plants <br />such as Nevada bluegrass, Indian ricegrass, salina <br />wildrye, tapertip onion, sego lily, Wyoming big <br />sagebrush, winterfat, shadscale, fourwing <br />saltbush, Nuttall saltbush, and bud sagebrush will <br />decrease. With the decrease in desirable plants, <br />there will be an increase in plants such as <br />longleaf phlox, Hoods phlox, stemless spring <br />parsley, tall rabbitbrush and plains pricklypear. <br />Plant species likely to invade the site and <br />increase in density include bulbous bluegrass, <br />black greasewood, and annuals such as cheatgrass, <br />Russian thistle, and perfoliated pepper weed. If <br />area is left ungrazed by sheep for many years, the <br />brushy species will increase. Occasionally Utah <br />Juniper will invade this site. <br />d. Basal area (the area of ground surface covered by <br />perennial vegetation measured at ground level) is <br />approximately 15 percent when near the potential <br />plant community. <br />20 - 25 <br />5 - 10 <br />5 - ID <br />1 - 2 <br />1 - 2 <br />1 - 2 <br />I - 2 <br />1 - 2 <br />