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''Cymopterus'' is a genus of perennial plants in the family Apiaceae native to western North America. They are commonly known as the springparsleys.〔(''Cymopterus''. ) USDA PLANTS.〕 They are mostly stemless, taprooted perennial herbs with leaves at ground level and flowering scapes bearing yellow, white, or purple flowers.〔(''Cymopterus''. ) The Jepson eFlora 2013.〕 ==Systematics== The taxonomy of this genus is confused even after many decades of study.〔Sun, F. and S. R. Downie. (2004). (A molecular systematic investigation of Cymopterus and its allies (Apiaceae) based on phylogenetic analyses of nuclear (ITS) and plastid (''rps16'' intron) DNA sequences. ) ''South African Journal of Botany'' 70(3), 407-16.〕 Authors have organized it in different ways, sometimes including several closely related Apiaceae genera within it, as the delimitations of the genus and its relationship with others are unclear.〔 It is very polyphyletic, and its limits are not well supported by evidence.〔 Genera recently segregated from ''Cymopterus'' include ''Vesper'', six plants with morphological characters that are well-defined and easily separated from ''Cymopterus''; the group has been separated before, but was reintegrated during repeated reorganizations of the genus.〔Hartman, R. L. and G. L. Nesom. (2012). (Taxonomy of the genus ''Vesper'' (Apiaceae). ) ''Phytoneuron'' 94 1-9.〕 There are perhaps 35〔Downie, S. R., et al. (2002). (Polyphyly of the spring-parsleys (''Cymopterus''): molecular and morphological evidence suggests complex relationships among the perennial endemic genera of western North American Apiaceae. ) ''Canadian Journal of Botany'' 80(12), 1295-1324.〕 to 50〔 species in the genus, but the count changes constantly. Species include:〔〔(GRIN Species Records of ''Cymopterus''. ) Germplasm Resources Information Network (GRIN).〕〔(''Cymopterus''. ) Integrated Taxonomic Information System (ITIS).〕 * ''Cymopterus aboriginum'' – Indian parsnip, Indian springparsley * ''Cymopterus acaulis'' – plains springparsley * ''Cymopterus basalticus'' – basalt springparsley * ''Cymopterus beckii'' – featherleaf springparsley * ''Cymopterus cinerarius'' – gray springparsley * ''Cymopterus corrugatus'' – corrugated springparsley, corrugate-wing springparsley, wrinklewing springparsley * ''Cymopterus coulteri'' – two-leaf springparsley * ''Cymopterus davisii'' – Davis' springparsley * ''Cymopterus deserticola'' – desert springparsley * ''Cymopterus douglassii'' – Douglass' springparsley * ''Cymopterus duchesnensis'' – Duchesne biscuitroot, Uinta Basin springparsley * ''Cymopterus evertii'' – Evert's springparsley * ''Cymopterus gilmanii'' – Gilman's springparsley * ''Cymopterus glaucus'' – smooth springparsley, waxy springparsley * ''Cymopterus globosus'' – globe springparsley * ''Cymopterus glomeratus'' – plains springparsley * ''Cymopterus goodrichii'' – Goodrich's springparsley, Toiyabe springparsley * ''Cymopterus ibapensis'' – Ibapah springparsley * ''Cymopterus jonesii'' – Jones' springparsley * ''Cymopterus lapidosus'' – talus springparsley * ''Cymopterus longipes'' – longstalk springparsley, sprawling springparsley *''Cymopterus macrorhizus – bigroot springparsley * ''Cymopterus megacephalus'' – largeleaf springparsley * ''Cymopterus minimus'' – Cedar Breaks springparsley * ''Cymopterus montanus'' – Mountain springparsley * ''Cymopterus newberryi'' – sweetroot springparsley, sticky springparsley * ''Cymopterus nivalis'' – snowline springparsley, Elko springparsley * ''Cymopterus panamintensis'' – Panamint springparsley * ''Cymopterus planosus'' – Rocky Mountain springparsley * ''Cymopterus purpureus'' – purple springparsley, Colorado Plateau springparsley, variable springparsley * ''Cymopterus ripleyi'' – Ripley's springparsley * ''Cymopterus rosei'' – Rose's springparsley * ''Cymopterus terebinthinus'' (syn. ''Pteryxia terebinthina'')〔(''Cymopterus terebinthinus''. ) Calflora 2013.〕〔(''Pteryxia terebinthina''. ) USDA PLANTS.〕 – turpentine wavewing * ''Cymopterus williamsii'' – Williams' springparsley 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「Cymopterus」の詳細全文を読む スポンサード リンク
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