Japanese name: ヒメヘビイチゴ(姫蛇苺) Scientific name:Potentilla centigrana
[Overview]
A perennial found on paddy ridges and in slightly moist places in the mountains.
The stems branch, creep along the ground, and produce roots at the nodes.
The stems have spreading hairs or are almost hairless.
The leaves are alternate on the stem and ternately compound; the leaflets are obovate to elliptic, 0.5–1.5 cm in both length and width, thin, with hairs on the veins of the underside.
The underside of the leaves is tinged with powdery white.
The leaf margins have tooth-like serrations.
The leaves have long petioles and lanceolate to ovate stipules 0.7 cm long.
The flowers are solitary, yellow with 5 petals, 0.6–0.8 cm across.
The flowers have a calyx and an epicalyx, and the petals are longer than the calyx.
The flower stalk is 1–4 cm long.
The receptacle of the fruit is hemispherical, does not become spongy, and bears short hairs.
Achenes are borne on the surface of the receptacle.
The achenes are brown, with irregular lengthwise wrinkles on the surface.