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''Camissonia'', sometimes commonly known as sun cup or sundrop, is a genus of annual and perennial plants in the evening primrose family Onagraceae. A total of 12 species are known, nearly all from western North America, especially in the California Floristic Province, but also one from South America. Previous circumscriptions of the genus had recognized up to 62 species before it was split among other closely related genera.〔Wagner WL, PC Hoch, and PH Raven. 2007. (Revised classification of the Onagraceae ). ''Systematic Botany Monographs'', 83: 1-240.〕 The flowers generally open at dawn, and may be yellow, white, or lavender, often with darker shades at the base. They are usually cup-shaped, thus the common name. Formerly included in ''Oenothera'', the species of ''Camissonia'' are distinguished by having a club- or head-shaped stigma, instead of the 4-part-divided stigma of ''Oenothera'' or ''Clarkia''. ''Camissonia'' species are used as food plants by the larvae of some Lepidoptera species including ''Schinia cupes'' and ''Schinia deserticola'', both of which feed on ''C. claviformis'', the latter exclusively. The genus is named after the botanist Adelbert von Chamisso. ==Selected species== According to The Plant List, the genus includes the following accepted species:〔(The Plant List )〕 * ''Camissonia andina'' (Nutt.) P.H.Raven * ''Camissonia bairdii'' S.L.Welsh 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Camissonia」の詳細全文を読む スポンサード リンク
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