Japan Flora: Stems 6-10 cm. long，with 1 or 2 scales; racemes 3- to 8-flowered, the flowers short-pedicellate; staminate flowers on the upper part, 5-7 mm. across, the perianth-segments 6, linear, 25-3.5 mm. long, caudate, gla­brous; stamens 3, with very short filaments; pistillate flowers 4-5 mm. across with 6 lanceolate, acuminate perianth-seg­ments 2-2.5 mm. long; carpels numerous, rugose above, obovoid when mature, 1.3-1.5 mm. long, collected in a globose head 5-6 mm. across.  Aug.-Sept.

Honshu (centr. distr. and westw.)，Shikoku, Kyushu; rare.