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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Jeffersonia ： ウィキペディア英語版 Jeffersonia ''Jeffersonia'' which is also known as twinleaf or rheumatism root, is a small genus of herbaceous perennial plants in the family Berberidaceae. They are uncommon spring wildflowers, which grow in limestone soils of rich deciduous forests. ''Jeffersonia'' was named for United States President Thomas Jefferson, by his contemporary Benjamin Smith Barton.〔(Flora of North America: Jeffersonia )〕 This genus was formerly grouped in genus ''Podophyllum''. Twinleaf is protected by state laws as a threatened or endangered plant in Georgia, Iowa, New York, and New Jersey.〔(USDA PLANTS Database: Jeffersonia )〕 == Description == The leaves and flowers of this plant are smooth and emerge directly from the rhizome at base of the plant. ''Jeffersonia'' has showy white flowers with eight petals; the flower resembles Bloodroot. The short-lived flower appears in April or May, before the forest canopy appears (see spring emphemeral). The fruit is a green pear-shaped capsule with a hinged top. The characteristic leaves are large and nearly divided in half, giving rise to its common name, twinleaf. Plants in this genus rarely grow taller than . As with many other deciduous forest plants, the seeds are dispersed by ants, a process known as myrmecochory. 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「Jeffersonia」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.