An annual vine of the legume family, native to tropical Asia. Also known as butterfly pea. The stem is erect at first, covered with soft hairs, and becomes a vine at the top, reaching a length of about 5m. The leaves are odd-pinnate compound, consisting of 2-4 pairs of elliptical leaflets. In summer, a single large, blue-purple, butterfly-shaped flower with a long peduncle grows from each axil of the leaf. Because of the beauty of these flowers, it is also cultivated for ornamental purposes. The fruit is a pod, and can be eaten like green beans before ripening. Source: Encyclopaedia Britannica Concise Encyclopedia About Encyclopaedia Britannica Concise Encyclopedia Information |
マメ科の一年生のつる植物で,熱帯アジア原産。コチョウマメともいう。茎は初め直立し,軟毛が多く,上部にいたってつるとなり,長さは 5mくらいにまで達する。葉は奇数羽状複葉で2~4対の楕円形の小葉から成る。夏に,各葉腋から長い花柄をもつ青紫色の大型の蝶形花を1つずつつける。この花が美しいので観賞用にも栽培される。果実は莢果で,熟さないうちはサヤインゲンのように食用となる。
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