A perennial plant of the Saxifragaceae family that is rarely found in the moist shade of trees in deep mountains, it is a relict plant that is often found in limestone areas (illustration). The stem is 80-120cm tall, the leaves are opposite, and the lower ones have long stalks, but the upper ones are almost stalkless. The leaf blade is 10-20cm long and wide, shallowly palmately lobed, with triangular lobes that are pointed at the ends and heart-shaped at the base. In July and August, it produces sparse cone-shaped cymes at the ends of the stems, and beautiful yellow flowers bloom. The calyx tube is hemispherical with five shallow triangular lobes at the end. Source: Heibonsha World Encyclopedia, 2nd Edition Information |
深山の湿った木陰にまれに見られるユキノシタ科の多年草で,石灰岩地帯に多い遺存的な分布をする植物(イラスト)。茎の高さは80~120cm,葉は対生し,下部のものには長い柄があるが,上部のものはほとんど無柄となる。葉身は長さ幅ともに10~20cm,浅く掌状に分裂し,裂片は三角形で先がとがり,葉身の基部は心形になる。7~8月に,茎の先にまばらな円錐状の集散花序をつくり,美しい黄色の花を開く。萼筒は半球形で,先に浅い三角形の5裂片がある。
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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