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~, <br />-10- Gravelly Foothill (1214 __._ <br />References <br />Gay, Charles W. and Don D. Dwyer. Poisonous Range Plants. Cooperative <br />Extension Service, Circular 391, New Mexico State University, pp. 1-21, <br />June 1967. <br />James, L. F. and et al. Plants Poisonous to Livestock in the Western <br />States. Agriculture Information Bulletin No. 415, pp. 1-90, November <br />1980. <br />Darrell, L. W., Rue Jensen and Bruno Klinger. Poisonous and Injurious <br />Plants in Colorado. Bulletin 4i2-A, pp. 1-88, June 1952. <br />United States Department of Agriculture. 22 Plants Poisonous to Livestock <br />in the Western States. Agriculture Information No. 327, pp. 1-64, <br />April 1968. <br />a~. <br />