Japanese name: ミヤマムグラ（深山葎） Scientific name:Galium paradoxum subsp. franchetianum
[Overview]
A perennial 10–25 cm tall, growing in forests in deep mountains.
The rhizome is erect.
The leaves are ovate to broadly ovate, 1–3 cm long and 0.5–2 cm wide, usually whorled in fours and unequal in size, with entire margins; short stiff hairs grow on the leaf margin and on the surface near the margin.
The petiole is 0.4–1.2 cm long.
Of the whorled leaves, the true leaves are the 2 opposite ones, and the others are stipules.
A short cyme at the stem tip bears a few flowers sparsely.
The flowers are white, 2–2.5 mm across, and the corolla is 4-lobed.
The calyx is densely covered with long hooked hairs.
The flower stalk is rather thick and elongates after flowering.
The fruit is 2–2.5 mm across and has long hooked hairs.
