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Lathyrus niger : ウィキペディア英語版 | Lathyrus niger
''Lathyrus niger'', also known as black pea, blackening flat pea and black bitter vetch, is a perennial legume that is native to Europe. Its common name is reference to the blackening of the plants foliage as it dies. The seeds of the species are not to be confused with edible 'black peas', which are a form of ''Pisum sativum''. Seeds of Lathyrus species are toxic, containing an enzyme that interferes with collagen synthesis to cause the disease Lathyrism. ==Description== ''Lathyrus niger'' is a perennial plant with erect, self-supporting stems that grow to . The stems are branched and unwinged and nearly hairless. The leaves are alternate with short winged stalks and narrow stipules. The leaf blades are pinnate with four to eight pairs of narrow elliptical leaflets with sharp tips, entire margins and no tendrils. The underside of the leaflets is bluish-green. The inflorescences grow from the axils and are often one-sided. They have long stems with two to ten red flowers, each long, turning bluer as they age. Each flower has five sepals and five petals and are irregular. The uppermost petal is known as the "standard", the lateral two as the "wings" and the lowest two are joined to form the "keel". There are ten stamens and a single carpel. The fruit is a long black pod containing up to eight seeds. This plant flowers in June and July.〔(【引用サイトリンク】title=Black pea: ''Lathyrus niger'' )〕
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「Lathyrus niger」の詳細全文を読む
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