A perennial plant of the Ranunculaceae family that grows under or on the edges of deciduous broadleaf forests. It is also called yukiwarisou (snow-breaking grass) because it flowers in early spring. It has a creeping rhizome. The basal leaves overwinter and have long petioles. The leaf blade is triangular and shallowly divided into three lobes, with pointed tips and no sawtooth. The upper surface of the leaf often has whitish markings. In early spring, it produces a flower stalk 5-15 cm tall, with a single flower at the end. The stem leaves have three leaves, are whorled, not divided, have no sawtooth, and are somewhat pointed at the tip. The leaves and flower stalks have long white hairs, especially when young. Source: Heibonsha World Encyclopedia, 2nd Edition Information |
落葉広葉樹林の下や縁に生えるキンポウゲ科の多年草。早春に開花するので,ユキワリソウ(雪割草)ともいう。匍匐(ほふく)する根茎がある。根生葉は越冬し,長い葉柄がある。葉身は三角形で浅く3裂し,裂片は先端がとがり,鋸歯はない。葉の表にはしばしば白っぽい斑紋がはいる。早春に高さ5~15cmの花茎を出し,先端に1個の花をつける。茎葉は3枚,輪生し,分裂せず,鋸歯はなく,先端が多少とがる。特に若いとき,葉や花茎には白い長毛がある。
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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