Japanese name: ヒメミカンソウ（姫蜜柑草） Scientific name:Phyllanthus ussuriensis
[Overview]
An annual seen along roadsides and in fields.
The stem is erect or ascending, usually branched from the lower part, and winged.
The leaves are simple and alternate, also borne on the main stem, elliptic to narrowly elliptic, 0.8–2.6 cm long and 0.3–0.7 cm wide, greenish white on the underside, and entire.
The petiole is 0.3–0.6 mm long.
There are male and female flowers, borne in leaf axils in small cymes, with 1–3 male flowers and 1 female flower each.
Neither the male nor the female flowers have petals; the male flowers have 4–5 sepals and 2 stamens, and the female flowers have 6 sepals.
The fruit is an oblate capsule 2.5 mm in diameter, with indistinct wart-like projections on the surface or smooth, and the fruit stalk is 1–3.5 mm long and ridged.
The seeds are three-ridged.
