Japan Flora: Much-branched deciduous shrub with gray branches and slender gray-pilosulous branchlets; leaves membranous, broadly lanceolate to ovate, or sometimes rhombic- ovate, 2-5 (-8) cm. long, 1-2 (-3.5) cm. wide, usually acute, sometimes acuminate or obtuse at both ends, usually appressed- puberulent above, pale green and pilosulous especially on the nerves beneath, the petioles 2-5 mm. long, usually pilosulous; panicles narrowly pyramidal, subracemose, slender, 3-5(-7) cm. long, 1.5-25 cm. wide, rather densely puberulent; corolla 5-7 mm. long, the tube rather slender, 1.5-2 times as long as the lobes; filaments shorter than the corolla-lobes, the anthers lanceolate, 2.5-35 mm. long; styles 2-3 mm. long; fruit globose, purple-black, about 8 mm. in diameter. June-July.
Thickets and thin woods in mountains; Hokkaido, Honshu, Shikoku, Kyushu; common and variable.
var. glabrescens Koidz. Glabrescent; leaves pilosulous only on the nerves beneath. Occurs with the typical phase.
var. macrocarpum (Koehne) Mansf. Leaves larger and fruit to 12 mm. long. Occurs with the typical phase.
var. kiyozumianum (Nakai) Ohwi. Leaves broadly ovate, obovate, or broadly elliptic, and slightly pilosulous; panicles pilosulous, narrow, 3-7 cm. long, 2-4 cm. wide. Honshu (se. Kanto Distr.).
var. epile Ohwi. Glabrous variant of the preceding variety, and occurs with it