A tree of the Cycadaceae family native to South Africa. The trunk is short and thick, about 2m tall, and the upper part is covered with gray down. The deeply pinnate leaves are clustered at the top of the trunk, over 1m long, and each leaf lobe is linear. Both male and female flowers are oblong and orange-colored. The cones ripen to a crimson color. About 20 species of Encephalartos are known in tropical and South African regions, and the starch contained in the center of the trunk is used as food by indigenous people. Source: Encyclopaedia Britannica Concise Encyclopedia About Encyclopaedia Britannica Concise Encyclopedia Information |
ソテツ科の樹木で南アフリカ原産。幹は短く肥厚し高さ 2mほどで,上部は灰色の綿毛におおわれている。羽状に深く裂けた葉は幹の頂部に集ってつき,長さ 1m以上,葉の各裂片は線形である。雄花,雌花ともに長楕円形でみかん色。球果は朱紅色に熟する。オニソテツ属は熱帯アフリカおよび南アフリカに 20種ほど知られ,幹の中心に含まれるデンプンを先住民が食用にする。
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