Japanese name: トキホコリ(時繁) Scientific name:Elatostema densiflorum
[Overview]
An annual 10–25 cm tall, growing in moist places such as around houses.
The stem is succulent and bears spreading hairs.
The leaves are simple and alternate, 3–6 cm long, asymmetrical and distorted oblong, with coarse serrations on the margins.
The leaves turn greenish black when dried.
There are male flowers and female flowers, both borne in head-like inflorescences in the leaf axils.
The flowers are green and very small; male flowers have 4 perianth segments and 4 stamens, and female flowers have 3–5 perianth segments and a pistil.
The fruit is an elliptic achene about 0.5 mm long.