Japanese name: ハイオトギリ(這弟切) Scientific name:Hypericum kamtschaticum
[Overview]
A perennial 10–35 cm tall, found in grasslands on gravelly ground in alpine zones.
The stems grow in clumps and are little branched, with two indistinct ridges or cylindrical.
Leaves are simple and opposite, elliptic to ovate, 3–4 cm long and 0.7–2.7 cm wide, with the base slightly clasping the stem.
The leaves have black lines and black dots, with the dots especially dense along the margins.
Cymes at the branch tips bear 1–7 flowers.
The flowers are yellow with 5 petals, 1.5–3 cm across, and have 30–60 yellow stamens.
The petals and sepals have black lines and black dots.
The style is 0.9–1.3 times as long as the ovary.
The fruit is a capsule, broadly ovoid-conical to elliptic-cylindrical.