Japanese name: オオニシキソウ（大錦草） Scientific name:Euphorbia nutans
[Overview]
An annual 20–60 cm tall, found along roadsides, riverbeds and in fields.
When the stem or leaves are damaged, a milky-white latex comes out.
The stems branch freely, stand upright, and are tinged with red.
The leaves are simple and opposite, elliptical, 1.6–3.5 cm long and 0.5–1.4 cm wide, with fine serrations on the margins.
The leaf base is asymmetrical.
The leaves have triangular stipules.
Cup-shaped inflorescences (cyathia) are produced sparsely at the tips of the stems and branches.
The flowers are small, and the appendages of the glands are white and petal-like.
The fruit is a broadly ovate capsule 1.8 mm in diameter, with 3 ridges.
[History]
It was confirmed in the late Meiji era and has become naturalized in various regions.
