Japanese name: オオヘビイチゴ（大蛇苺） Scientific name:Potentilla recta
[Overview]
A perennial 20–80 cm tall, found in sunny grasslands and along roadsides.
The whole plant has long hairs.
The stems branch well and extend in a zigzag manner.
The leaves are alternate and palmately compound with 3–7 leaflets; lower leaves have longer petioles, and upper ones are sessile.
Stipules are present at the base of the petiole.
The leaflets are linear-lanceolate to oblong, with margins that are deeply pinnately lobed or deeply serrated.
A cyme at the stem tip bears several flowers 2–2.5 cm across.
The flowers are pale yellow and 5-petaled, and the petal tips are notched.
The flowers have a calyx and an epicalyx.
The fruit is an achene 1.5 mm long with wrinkles on the surface.
[History]
It was introduced as an ornamental in the middle of the Meiji era and has escaped from cultivation.
