Japanese name: イヌショウマ(犬升麻) Scientific name:Cimicifuga biternata var. biternata
[Overview]
A perennial 40–80 cm tall, found in forests and at forest edges in the mountains.
It has a thick, creeping rhizome.
One stem is produced from the rhizome each year.
There are basal leaves and stem leaves arranged alternately on the stem.
The basal leaves are 1–2 times ternately compound.
The leaflets are ovate, 3–15 cm long and 3–12 cm wide, with 3–7 lobes and coarsely toothed margins.
The leaves on the stem are reduced to scales.
A long, cylindrical spike is produced, densely covered with short yellow hairs.
The flowers are small and white, with petal-like sepals and petals that fall soon after the flower opens, so the many white stamens stand out.
As a result, the inflorescence looks like a brush.
The flowers have no stalks.
The fruit is a follicle about 0.5–0.7 cm long.