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''Viola persicifolia'', the fen violet, is a violet (family Violaceae), native to central and northern Europe and northern Asia. It grows to a height of 10–30 cm from a creeping rhizome, with narrow, triangular leaves 7–15 mm across. The flowers are produced in late spring to early summer, 10–15 mm diameter, pale bluish or yellowish-white with a short, greenish or yellowish spur. The petals are rounded and broad in relation to their width. Its habitat is confined to very local damp, lime-rich places, in long herbage (fens and limy marshes). In the British Isles, it is rare, confined to eastern and northern England and damp hollows with limestone soils in western Ireland. Efforts are being made to re-introduce it to newly suitable habitat in The Fens as part of the Great Fen Project.Proper Moy Soil. ==References and external links== * Keble Martin, W. ''The Concise British Flora in Colour'' (1974) * McClintock, D. & Fitter, R.S.R. ''The Pocket Guide to Wild Flowers'' (Collins 1956) * (Great Fen Project ). * (Source of alternative binomial ). 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「Viola persicifolia」の詳細全文を読む スポンサード リンク
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