Japanese name: ニシキソウ(錦草) Scientific name:Euphorbia humifusa
[Overview]
An annual found along roadsides and in fields.
Milky-white sap comes out when the stems or leaves are damaged.
The stems creep along the ground, branch freely, and are tinged with red.
The stems are hairless or covered with long soft hairs.
The leaves are simple and opposite, elliptic to obovate, 0.5–1.5 cm long and 0.3–0.7 cm wide, with fine teeth on the margins.
The leaf base is asymmetrical.
Both surfaces of the leaves are hairless or covered with long soft hairs.
The leaves have triangular stipules.
The leaf stalks are short and hairless or covered with long soft hairs.
Cyathia emerge at the stem nodes.
The flowers are small, and the appendages of the glands are petal-like, white or tinged with red.
The ovary is smooth and hairless or covered with long soft hairs.
The fruit is a flattened ovate capsule 0.2 cm in diameter, with 3 ridges, smooth, and hairless or covered with long soft hairs.