Japanese name: アゼオトギリ（畦弟切） Scientific name:Hypericum oliganthum
[Overview]
A perennial 10–40 cm tall, found in sunny, moist places in lowlands such as the banks between rice fields.
Several stems grow in a clump; they are almost cylindrical or slightly two-ridged in the upper part, well branched, creeping along the ground with the upper part rising upright.
Leaves are simple and opposite, oblong to oblanceolate, 0.8–2.5 cm long and 0.3–0.9 cm wide, usually densely covered with translucent dots and with black dots along the margins.
Cymes at the branch tips bear 1–7 flowers.
The flowers are yellow with 5 petals, 1–1.5 cm across, and have 20–30 yellow stamens.
The petal margins have black dots.
The fruit is a capsule.
