Japanese name: エゾミズタマソウ(蝦夷水玉草) Scientific name:Circaea canadensis subsp. quadrisulcata
[Overview]
A perennial 30–70 cm tall, found in forests in the mountains.
It has slender underground stems.
The stem is usually hairless.
Leaves are simple and opposite, long ovate to long elliptic-ovate, 4–14 cm long, almost hairless, with low teeth on the margins.
The leaves have stalks.
Racemes arise at the stem tips and in the leaf axils, and the inflorescence is covered with many short glandular hairs.
The flowers are small and pale pink or white, with 2 petals that are 2-lobed at the tip.
The sepal lobes are usually purple.
The fruit is a broadly inversely ovate nut about 0.2–0.3 cm in diameter, white and densely covered with hooked hairs.