Japanese name: ミツモトソウ(水元草) Scientific name:Potentilla cryptotaeniae
[Overview]
A perennial 0.3–1.2 m tall, found along mountain valleys and in moist grasslands.
It is hairy all over, especially on the stems.
The stem branches in the upper part.
There are basal leaves and leaves alternate on the stem; the basal leaves have withered by the flowering season.
The stem leaves are ternately compound; the leaflets are narrowly ovate to elliptic, 2–8 cm long and 2–3.5 cm wide, with serrations or double serrations.
The lower stem leaves have long petioles, and more than half of each stipule is fused to the petiole.
Cymes bear yellow 5-petaled flowers 1–1.4 cm across.
The flowers have a calyx and epicalyx shorter than the petals, and the epicalyx and calyx are about the same length.
The fruit is an achene.