An annual grass of the grass family native to Egypt and Sudan. It is thought to be a crop that was developed by crossbreeding several wild species from tropical Africa. The plant resembles corn and grows to a height of 1-3 m. The culm is thick but prone to lodging. The nodes are densely hairy. The leaves are 1 m long and 5 cm wide. In temperate regions, cylindrical ears similar to those of cattails appear at the top of the stem from summer to autumn, and are 30-40 cm long, sometimes up to 90 cm, and 2-4 cm in diameter. The caryopsis is slightly smaller than a grain of rice and has a bluish color. Source: Heibonsha World Encyclopedia, 2nd Edition Information |
エジプト,スーダン原産のイネ科の一年草。熱帯アフリカ産のいくつかの野生種の交雑によって生じた作物と考えられている。草姿はトウモロコシに似て,高さ1~3m。稈(かん)は太いが倒伏しやすい。節部に毛が密生する。葉は長いものは1m,幅5cm。温帯域では夏から秋に,茎頂にガマの穂に似た円筒形の穂を出し,長さ30~40cm,ときには90cmになるものもあり,直径2~4cm。穎果(えいか)は米粒よりやや小さく,青みをおびている。
出典 株式会社平凡社世界大百科事典 第2版について 情報 |
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