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4-109 <br />• <br />• <br />• <br />Cheatgrass is the major graminoid producer (41.4 g/m2). Other <br />common graminoid producers include: Salina wildrye, galleta grass <br />H~Qart~a jamea~~, Indian ricegrass, and sand dropseed. Graminoid <br />production accounts for 70.0 g/m2 or 94 percent of the total. <br />Forb production is low, averaging 4.7 g/m2. See Table 4.8-11. <br />Density <br />Shadscale saltbush is the most abundant shrub in this vegetation <br />type with a density .of 3,288 shrubs per acre or 71 percent of the <br />average total shrub density of 4,603 shrubs per acre. Broom snake- <br />weed was also common with 865 plants per acre. Average height for <br />all shrubs is 46 centimeters. Average height ranges from 37 <br />centimeters for broom snakeweed to 62 centimeters for big sage- <br />brush. Shadscale saltbush averages 41 centimeters in height. See <br />Table 4.8-12. <br />Diversity <br />Species richness is very low in the Shadscale Shrubland (index = <br />6.92). The harsh environment provided by these steep, dry, south- <br />facing slopes probably reduces the number of species. Equitability <br />of cover among species was also low (index = 0.61) as most of the <br />cover is divided among a very few species. See Table 4.8-6. <br />4.8.10.4 Juniper Woodland <br />The Juniper Woodland vegetation type occurs through the per- <br />mit area on the shallow, rocky and dry mountainous terrain. <br />This vegetation type occurs mainly on the Torriorthent rock <br />outcrop complex with minor inclusions of the Nihill loam. See <br />photograph enclosed in this subsection. <br />