. Characteristics and hybridization of important intermountain shrubs. Compositae Rocky Mountains; Shrubs Rocky Mountains; Sunflowers Great Basin; Shrubs Great Basin. Figure 37.—Pappus on developing aohene of mountain rubber rabbit- brush (C. nauseosus ssp. salicifoliusj. Specimen from Ephraim Canyon^ Sanpete Co., Utah (7X). two exserted stigmas (fig. 38) and an ovary that develops into a 1-seeded glabrous to densely pubescent achene. The basic chromosome number for rabbitbrush is :c = 9. Poly- ploidy is limited in the genus, having been found in o,ily a few subspecies of C. viscidiflorus (And
. Characteristics and hybridization of important intermountain shrubs. Compositae Rocky Mountains; Shrubs Rocky Mountains; Sunflowers Great Basin; Shrubs Great Basin. Figure 37.—Pappus on developing aohene of mountain rubber rabbit- brush (C. nauseosus ssp. salicifoliusj. Specimen from Ephraim Canyon^ Sanpete Co., Utah (7X). two exserted stigmas (fig. 38) and an ovary that develops into a 1-seeded glabrous to densely pubescent achene. The basic chromosome number for rabbitbrush is :c = 9. Poly- ploidy is limited in the genus, having been found in o,ily a few subspecies of C. viscidiflorus (Anderson 1971). The rabbitbrushes are endemic to western North America in open plains, valleys, foot- hills, and mountains from sea level to 3,300 meters (10,900 feet) in elevation (Hitch- cock and others 1969; USDA Forest Service 1974). In addition to their importance as browse and soil stabilizers, rabbitbrushs are used by the Hopi Indians for making wind- breaks, arrows, wickerwork, and as fuel in their ceremonial chambers (kivas). Flowers and inner bark may be used to make yellow and green dye, respectively (Kearney and Peebles 1960). Rabbitbrushes, particularly the larger ones, provide late-season nectar that pro- duces a dark, strong-flavored honey (D. T. Booth, letter 11/16/77). The dark color and late nectar flow (coming after most sources have ceased) make rabbitbrush especially valuable in winter beehives. Besides the eight species (C. albidus, C. depressus, C. greenei, C. linifolius, C. nauseosus3 C. parryi^ C. vaseyi, and C. viscidiflorus) treated in the publication, there are a few other Chrysothamnus species. Some, for example, C. pulchellus do not occur in. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original McArthur, E. Durant; United States. Forest Service. cn. Ogden, Utah : Intermountain Forest
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