Hypericum pseudopetiolatum ("Sawaotogiri")

Japanese name: サワオトギリ （沢弟切）
Scientific name: Hypericum pseudopetiolatum

[Overview]
A perennial 10–30 cm tall, found in wet places in the mountains.
The stem is almost cylindrical and branches freely.
Leaves are simple and opposite, elliptic to oblanceolate, 0.8–4 cm long and 0.3–1.5 cm wide, with clear dots and black dots along the leaf margin.
Cymes at the branch tips bear 1–9 flowers.
The flowers are yellow with 5 petals, 0.8–1.3 cm across, with many yellow stamens.
The petal edges have black dots.
The fruit is a capsule.

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