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I'� <br />These woody plants are generally most abundant from the foothills to the ponde- <br />rosa -pine belt of the mountains. They grow in sunny, moist, or relatively dry <br />situations, the largest specimens usually being associated with willows, alders, <br />aspen, and dogwood along the streams in open valleys or in sparsely timbered, <br />warm and sunny canyons. They also grow about springs, seeps, and other moist <br />places, but pure and brushy stands are largely limited to moist or well -drained, <br />warm slopes or sandy flats. They usually occur on deep, rather fertile, sandy <br />soils, but frequently do well on rocky talus slopes and about rim rocks. <br />Although poisonous under some conditions, chokecherries are often grazed moder- <br />ately and in combination with other forage without ill effect. Fortunately they <br />are not of high palatability, the leaves, twigs, and green bark having a bitter <br />flavor, which is not entirely agreeable to livestock. On the open range they <br />rate as poor to fair forage for both cattle and sheep; and, although losses some- <br />times occur, they usually are attributable to abnormal use of chokecherries, as a <br />result of overgrazing or other causes. Most fatalities due to eating these <br />• plants occur in areas where livestock are concentrated, such as about water, in <br />corrals and pastures, and along driveways or near bedgrounds. <br />SSymphoricarpos oreophilus <br />(Mountain snowberry) <br />Symphoricarpos, a member of the honeysuckle family (Caprifoliaceae), is a small <br />genus of chiefly North American shrubs, widely distributed in the United States <br />and southern Canada, and also extending into Mexico. Under a conservative nomen- <br />clature, there are about 12 species of the genus, ten of which occur in the west- <br />ern range country; the other two are largely eastern in their distribution. One <br />species is confined to Mexico, and one additional species grows in China. These <br />shrubs are frequently known on the range by the indistinctive name buckbrush; <br />other common names include Indian current, St. Peterswort, waxberry, and wolf - <br />berry. With one exception, all the United States species have white or slightly <br />pink berries. The white -fruited species are most commonly called snowberries, <br />and the single red -fruited species (S. orbiculatus) is dubbed coralberry. Many <br />• of the American species are closely related and so similar that it is difficult. <br />2-91 <br />