Picris hieracioides subsp. japonica var. japonica ("Kozorina")

Japanese name: コウゾリナ （顔剃菜、剃刀菜）
Scientific name: Picris hieracioides subsp. japonica var. japonica

[Overview]
A biennial or short-lived perennial 25–200 cm tall, found in sunny places.
It has spindle-shaped roots.
Stiff bristles grow all over the plant.
There are basal leaves and stem leaves; the basal leaves have withered by flowering time.
The stem leaves are simple, alternate and lanceolate.
Yellow flower heads 2–2.5 cm across are borne in corymb-like inflorescences.
Each flower head consists of 30–34 florets.
The fruit is an achene.

[Uses]
The whole plant is used medicinally.

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