It is a grass of the grass family native to Europe, and is one of the naturalized plants in Japan. It is a perennial plant that grows somewhat clump-like, and is 60-100 cm tall. The stems are erect and have long internodes. The leaves are linear and long lanceolate, about 15 cm long and 4-10 mm wide, with rough, hairy surfaces. In May and June, it produces inflorescences about 15-30 cm long at the top of the stem. The inflorescences are conical, but are compact and almost spike-like, and are yellow with a purple tinge overall, shiny, with very short branches and numerous, dense spikelets. Source: Heibonsha World Encyclopedia, 2nd Edition Information |
ヨーロッパ原産のイネ科の牧草で,日本では帰化植物の一つである。やや叢生(そうせい)する多年草で,高さは60~100cmである。茎は立ち,節間は長い。葉は線状の長披針形で,長さは15cmくらい,幅は4~10mmで,表面に毛があってざらつく。5~6月ころ,茎の頂に長さ15~30cmほどの花序を出す。花序は円錐であるが,つまってほとんど穂状に見え,全体に紫色を帯びた黄色で,光沢があり,枝はきわめて短く,小穂は多数密生する。
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