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<br /> E%HIBIT J (Cont'd) <br /> <br /> Primary species are Bouteloua gracilis, Bromus tectorum, <br />1 <br /> and Convolvulus sp. and exhibits a cover of 25 to 35 <br />' percent with local areas of about 50% and a height of <br /> 10" to 15". In places Chrysothamnus and Artemisia <br />' species form a second synusium that has a height of <br /> about 24", but these shruby species never form a true <br /> d <br />b <br />d <br />l <br />t <br />i <br />b <br />t <br />d <br />At <br /> an <br />comp <br />e <br />ere <br />e synus <br />um <br />ut ten <br />to <br />e scat <br />. <br />' present productivity is moderate, probably not exceeding <br /> about 400 lbs. per acre and often less. Its potential <br />' is probably in excess of 1000 lbs. per acre in a good <br /> year. <br /> <br /> 2. Bromus-Alyssum-Yucca Community - This extremely disturbed <br /> community occurs mostly on the Newlin soils but also <br /> is found on Satanta, Buick and Bresser. It is dominated <br />' <br /> by Bromus tectorum and Alyssum alyssoides with local <br />' patches of Yucca and some cacti such as Opuntia and <br /> Echinocactus. Cover is about 25 to 40~ with a height <br />' of 6" to 10" except for occasional Chrysothamnus and <br /> Aster sp. which are about 24" tall. Productivity is <br /> di <br />30 <br />lb <br /> extremely low, probably not excee <br />s. per <br />ng <br />0 <br />' acre. Its potential in a good year is probably 700 to <br /> 1000 lbs. per acre. <br />' 3. Northslope Aster-Helianthus-Agropyron Community - This <br />productive, fairly lush community occurs on both <br /> <br />- 33 - <br />1 <br />