Japanese name: オクヤマガラシ（奥山芥子） Scientific name:Cardamine torrentis
[Overview]
A perennial found along streams in the mountains.
It has a long creeping rhizome.
The stem is 20–60 cm long, thick and erect in the upper part, and is entirely hairless or hairy only at the base.
The leaves are alternate and odd-pinnately compound, 5–12 cm long, with 5–9 leaflets.
The leaflets are ovate-round to ovate-oblong, 1.5–4 cm long and 1–3.5 cm wide, with shallow wavy teeth on the margins.
The flowers are borne in racemes and are white and four-petaled.
The petals are obovate, 7–10 mm long.
There are 6 stamens.
The fruit is a silique 2.5–3.5 cm long, slightly ascending.
