Japan Flora: Very delicate herb; stems 5-10 cm. long, erect, loosely few­scaled; racemes loosely 4- to 10-flowered, with minute, ovate, obtuse bracts, the pedicels filiform, 2-10 mm. long, slightly curved; perianth-segments of bisexual flowers 4, about 1 nun. long, acute and with few long hairs at apex; stamens 4; carpels about 20，oblong; style clavate, attached slightly above the base on ventral side of the carpel, about half as long as the carpel; carpels 0.8 mm. long at maturity, the seeds dark brown, glossy.  

Kyushu (Mount Takakuma); very rare.