An annual grass of the family Poaceae (APG classification: Poaceae). The culm is hard, clump-like, and 30-80 cm tall. From August to October, the culm bears palmate inflorescences at the end of the culm, producing 1-6 spikelets. The spikelets have 3-10 florets, are flattened and sessile, and are arranged in two rows on one side of the inflorescence. The fruits are pouch-shaped caryopses with horizontal wrinkles. They grow in wastelands and roadsides from Honshu to Okinawa and Ogasawara, and are widely distributed from tropical to temperate regions of the world. The name is a reference to the weak-looking crabgrass. It is the original species of finger millet E. coracana (L.) Gaertn., which is sometimes cultivated, has large fruits, and spikes that can reach a width of 1 cm. [Jianchang Xu August 20, 2019] [References] | |The roots are strong and difficult to pull out, hence the name "power grass". ©Shogakukan "> Goosegrass Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend |
イネ科(APG分類:イネ科)の一年草。稈(かん)は硬く、株立ちして高さ30~80センチメートル。8~10月、稈の先に掌状花序をつけ、1~6本の穂状の小花序をつくる。小穂は3~10個の小花をもち、扁平(へんぺい)で無柄、小花序の片側に2列に並んでつく。果実は袋状の胞果となり、横しわがみられる。本州から沖縄、小笠原(おがさわら)の荒れ地や道端に生え、世界の熱帯から温帯にかけて広く分布する。名は、弱々しくみえるメヒシバに対していう。ときに栽培され、果実が大きく、穂状花序の幅が1センチメートルにも達するシコクビエE. coracana (L.) Gaertn.の原種にあたる。 [許 建 昌 2019年8月20日] [参照項目] | |根は強く張り、引っ張っても抜けにくく、「力草」の名がある©Shogakukan"> オヒシバ 出典 小学館 日本大百科全書(ニッポニカ)日本大百科全書(ニッポニカ)について 情報 | 凡例 |
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