Oreostemma is a genus of flowering plants in the family Asteraceae.Nesom, Guy L. 1993. The genus Oreostemma (Asteraceae: Astereae). Phytologia 74(4): 305–316 Species are found in western North America, with two endemic to California.Cronquist, A. 1948. A revision of the Oreastrum group of Aster. Leaflets of Western Botany 5: 73–82.Nesom, G. L. 1993. The genus Oreostemma (Asteraceae: Astereae). Phytologia 74: 305–316.
SpeciesBiota of North America Program 2013 county distribution maps Oreostemma alpigenum (Tundra aster) – California, Nevada, Oregon, Washington, Idaho, Montana, Wyoming Oreostemma elatum (Plumas alpine aster) – Sierra Nevada, California Calflora database: Oreostemma elatumJepson: Oreostemma elatum Oreostemma peirsonii (Peirson's aster) – endemic to California, in the southern Sierra Nevada.Jepson: Oreostemma peirsonii
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