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<br />LITERATURE CITED <br />Copple, R.F. and C.P. Pase. 1978. A Vegetative Key to Some Common <br />Arizona Range Grasses. USDA, Forest Service, rocky Mountain Forest and <br />Range Experiment Station, general Technical report RM-53. 106 pages. <br />Harrington, H.D. 1964. Manual of the Plants of Colorado. Sage books. 666 <br />pages. <br />May, M. 1960. Key to Major Grasses of the Big Horn Mountains Based on <br />Vegetative Characteristics. Wyoming Agricultural Experiment Station Bulletin <br />371. 44 pages. <br />Plummer, A.P., S.B. Monsen and D.R. Christensen. 1966. Intermountain Range <br />Plant Symbols. USDA, Forest Service, Intermountain Forest and Range <br />Experiment Station. 69 pages. <br />Weber, W.A. 1987. Colorado Flora: Western Slope. Colorado Associated <br />University Press. 530 pages. <br />21 <br />