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''Eranthis'' (winter aconite) is a genus of eight species of flowering plants in the family Ranunculaceae (Buttercup family), native to southern Europe and east across Asia to Japan. The common name comes from the early flowering time and the resemblance of the leaves to those of the related genus ''Aconitum'', the true aconite. Unlike ''Aconitum'', ''Eranthis'' is not poisonous. They are herbaceous perennials growing to tall. The flowers are yellow (white in ''E. albiflora'' and ''E. pinnatifida''), and among the first to appear in spring, as early as January in mild climates, though later where winter snowpack persists; they are frost-tolerant and readily survive fresh snow cover unharmed. The leaves only expand fully when the flowers are nearly finished; they are peltate, 5-8 cm diameter, with several notches, and only last for 2-3 months before dying down during the late spring. Species in this genus are spring ephemerals, growing on forest floors and using the sunshine available below the canopy of deciduous trees before the leaves come out; the leaves die off when the shade from tree canopies becomes dense, or, in dry areas, when summer drought reduces water availability. They are popular ornamental plants grown for their winter or early spring flowering. ''E. hyemalis'' is widely naturalised in northern Europe and North America. Propagate by lifting the tubers as the plants begin to die down, cutting or breaking them into separate sections and replanting these at once. ;Species *''Eranthis albiflora''. Western China. *''Eranthis cilicica''. Southwestern Asia. *''Eranthis hyemalis''. Southern Europe. *''Eranthis lobulata''. Western China. *''Eranthis longistipitata''. Central Asia. *''Eranthis pinnatifida''. Japan. *''Eranthis sibirica''. Northern Asia. *''Eranthis stellata''. Eastern Asia (northern China, Korea, southeast Russia). ==See also== * ''aconitum'' * aconitine 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「Eranthis」の詳細全文を読む スポンサード リンク
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