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''Baileya'' (the desert marigolds) is a genus of plants in the aster family Asteraceae. All are native to the southwestern United States and to Mexico.〔(Emory, William Hemsley. 1848. Notes of a military reconnoissance, from Fort Leavenworth, in Missouri, to San Diego, in California, including part of the Arkansas, Del Norte, and Gila rivers 144 )〕〔(Tropicos, ''Baileya'' Harv. & A. Gray ex Torr. )〕〔(Tropicos, ''Baileya'' Harv. & A. Gray ex Torr. )〕 They are typically annual, though ''B. multiradiata'' may be perennial. The leaves, which may range from being entire to deeply lobed, mostly occur in a basal cluster. From this arises several flower stems, up to 18 inches (50 cm) in height, usually carrying a single yellow radiate flower each, although ''B. pauciradiata'' may have 2-3 flowers on a stem.〔(Flora of North America, Baileya Harvey & A. Gray ex Torrey in W. H. Emory )〕 Desert marigolds typically have their main bloom in the spring, extending through July. Summer thunderstorms may enable a second bloom in October and even into November.〔(Jepson Manual Treatment )〕 ''Baileya'' species are used as food plants by the larvae of some Lepidoptera species including ''Schinia miniana'' (which feeds exclusively on the genus) and ''Schinia pallicincta'' (which feeds exclusively on ''B. pauciradiata''). The genus is named after US microscopist and West Point professor Jacob Whitman Bailey (1811–1857), known for his studies of diatoms .〔 ;Species〔(Flann, C (ed) 2009+ Global Compositae Checklist )〕〔(The Plant List, search for ''Baileya'' )〕〔(Biota of North America Program, 2013 county distribution maps )〕〔Turner, B. L. 2013. The comps of Mexico. A systematic account of the family Asteraceae (chapter 11: tribe Helenieae). Phytologia Mem. 16: 1–100〕 # ''Baileya multiradiata'' Harv. & A.Gray ex Torr. - California, Nevada, Arizona, New Mexico, southwestern Utah, western Texas, Sonora, Chihuahua, Coahuila, Durango, Aguascalientes # ''Baileya pauciradiata'' A.Gray - southeastern California, western Arizona, southwestern Utah, Sonora, Baja California # ''Baileya pleniradiata'' Harv. & A. Gray - California, southern Nevada, Arizona, southwestern Utah, Chihuahua, Sonora, Baja California ==References== 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「Baileya (plant)」の詳細全文を読む スポンサード リンク
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