Iwayukinoshita - Iwayukinoshita

Japanese: イワユキノシタ - いわゆきのした

A perennial herb of the Saxifragaceae family (illustration) that grows in colonies on damp rock walls along valleys. It is a rare plant that has adapted to the special environment of steep slopes. It is dioecious, and produces long, slender runners whose tips reach the ground to become new seedlings and multiply. The leaves are basal, evergreen, and have long, hairy stalks. The leaf blade is ovate-elliptical, 1.5-9 cm long, 1-5 cm wide, thick and leathery, and usually reddish purple on the underside. In May and June, it produces numerous small white flowers in a cone-shaped inflorescence. It has five white calyx lobes and no petals.

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:

谷沿いの湿った岩壁に群落を作って生えるユキノシタ科の多年草（イラスト）。急斜面の特殊な環境に適応した珍しい植物である。雌雄異株で，細長い走出枝を出し，先端が地上について新苗となり，ふえる。葉は根生し，常緑，あらく毛の生えた長い柄があり，葉身は卵状楕円形で，長さ1.5～9cm，幅1～5cm，革質で厚く，裏はふつう紅紫色を帯びる。5～6月に，円錐状の花序に多数の小さな白い花をつける。萼裂片は白色で5枚，花弁はない。

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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