Japan Flora: De­ciduous shrub, scattered short-pilose; branches slender, terete; leaves membranous, 5-12 cm. long, 15-3 cm. wide, caudate, cuneate at base, coarsely and obtuse toothed, glandular-dotted on both sides, loosely pilose, especially on nerves on both sides; petioles 5-10 mm. long; cymes axillary, short-pedunculate, rather many-flowered; corolla puberulent, scarcely glandular, about 3 mm. long, 4-lobed to the middle; anthers broadly ellipsoidal, about 0.6 mm. long; fruit purple, about 2 mm. across. July-Sept. Warmer districts.

Shikoku, Kyushu.