A perennial herb of the Scrophulariaceae family (illustration) that grows in slightly damp areas on the edges of mountain forests. The leaves that rise diagonally from the creeping stems are deeply lobed and resemble arabesque patterns. The slender stems crawl along the ground, with roots and a leaf emerging at each node. The leaves have long stalks, with the blades 2.5-6 cm long and 2-5 cm wide. In early summer, a single white flower blooms at the end of a slender stalk from the side of the leaf. The corolla is bell-shaped with five lobes. The capsule is spherical, and the stalk is spirally rolled up to place the fruit underground. In winter, the above-ground parts die and the tips of the stems swell to produce dormant buds. Source: Heibonsha World Encyclopedia, 2nd Edition Information |
山地の林縁のやや湿った所に生えるゴマノハグサ科の多年草(イラスト)。地をはう茎から斜上する葉は深く裂けて唐草模様を思わせる。茎は細長く地表をはい,節ごとに根と1枚の葉をだす。葉は長い柄があり,葉身の長さ2.5~6cm,幅2~5cm。初夏に,葉のわきから細長い花柄の先に,白色の1花を開く。花冠は鐘形で5裂する。蒴果(さくか)は球形,果柄はらせん状に巻いて果実を地中に入れる。冬は地上部が枯れ,茎の先が膨らんで休眠芽を作る。
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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