Japanese name: オグルマ（小車） Scientific name:Inula britannica subsp. japonica
[Overview]
A biennial to perennial 20–60 cm tall, found in sunny wetlands and along riverbanks.
It reproduces by producing adventitious buds from the roots.
After flowering, it sends out creeping branches sideways from the base of the plant, and at their tips it produces overwintering stems 3–5 cm tall to get through the winter.
The stem is sparsely hairy and branches in the upper part.
The leaves consist of basal leaves and stem leaves, and the basal leaves wither by the time of flowering.
The leaves on the stem are simple and alternate, elliptic, 5–10 cm long and 1–3 cm wide, with the base half clasping the stem.
Yellow flower heads 2.5–3.8 cm across bloom facing upward in corymb-like inflorescences.
The fruit is an achene.
