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''Fritillaria recurva'', the scarlet fritillary, is a North American bulb-forming herb in the lily family.〔〔Sierra Nevada Wildflowers, Karen Wiese, 2nd ed., 2013, p. 97〕 ''Fritillaria recurva'' is native to southwest Oregon from and northern California where it grows in the Klamath Mountains, Northern Coast Ranges, Cascade Range, and Sierra Nevada. Most of the known California locations are in the northern half of the state, as far south as Solano and El Dorado Counties, but there are isolated population in Tulare and Mariposa Counties.〔(Calflora taxon report, ''Fritillaria recurva'' Benth. scarlet fritillary )〕 The species has also been reported from Douglas and Washoe Counties in Nevada.〔(Biota of North America project, 2013 county distribution map, ''Fritillaria recurva'' )〕〔(Kew World Checklist of Selected Plant Families, ''Fritillaria recurva'' )〕 It grows in dry, open woodlands and chaparral from , and it blooms in spring from February to July.〔 ==Description== ''Fritillaria recurva'' is a bulb-forming perennial.〔 Lleaves are arranged in whorls and are linear to narrowly lanceolate. Tepals are scarlet, checkered with yellow on the inside, and form a bell shape, and are usually nodding (hanging down).〔 Its name, "recurva", derives from petals and sepals being "recurved", or bent backwards.〔 The fruit is a winged capsule.〔 ''Fritillaria recurva'' blooms from June to October.〔 It blooms about two weeks earlier than ''F. gentneri'', which has a different reddish color. Throughout its range it is distinguishable from other ''Fritillaria'' species by its scarlet red color, checkered with yellow on the inside, and recurved tepals.〔(Flora of North America, ''Fritillaria recurva' )〕〔(Bentham, George. 1857. Plantas Hartwegianas imprimis Mexicanas 340. )〕 Hybrids among the 10 species of ''Fritillaria'' make identification challenging.〔 In southwest Oregon ''F. recurva'' is similar to the rare ''F. gentneri''. The latter can be distinguished from ''F. recurva'' by its branching style and longer nectary glands. 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「Fritillaria recurva」の詳細全文を読む スポンサード リンク
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