A perennial grass of the grass family (illustration) that grows in clusters in wetlands and ditches in suburban areas. The Japanese name, wakasasa, is said to come from its small leaves. The stem is thin and somewhat stiff, spreading at the base to become an underground stem, with roots coming out from the nodes, and the upper part rising up and branching sparsely, reaching a height of 30-50 cm. The leaves are lanceolate or short linear, 4-7 cm long, about 6 mm wide, somewhat stiff, pointed at the tip, and hairless. From June to August, sparse panicles 3-6 cm long are produced at the top of the stem. The branches of the inflorescence are thin, dividing several times to produce small branches, and small spikelets are produced in a star-like pattern. Source: Heibonsha World Encyclopedia, 2nd Edition Information |
少し郊外の湿地,溝の中などに群生するイネ科の多年草(イラスト)。和名の稚児笹は小さい葉に由来するという。茎は細くやや硬く,基部ははって地下茎となり,節から根を出し,上部は立ち上がってまばらに枝分れし,高さ30~50cmになる。葉は披針形または短い線形で,長さ4~7cm,幅は6mmくらい,質はやや硬く,先はとがり,毛はない。6~8月,茎の頂に長さ3~6cmのまばらな円錐花序を出す。花序の枝は細く,数回分かれて小枝を出し,小型の小穂を星をちりばめたようにつける。
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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