Japan Flora: Branches slender, striate and obsoletely angled, more or less reddish brown arachnoid; leaves membranous, orbicular-cordate, 5-angled, 4-8 cm. long and as wide, rather open-cordate to deeply cordate at base, with 3(-5) lobes, these ovate to broadly so or deltoid, acute to obtuse, densely reddish brown lanate beneath, the teeth short or almost obsolete, short-mucronate; panicles 6-12 cm. long, including the peduncles, 2-4 cm. across, sometimes with tendrils; fruit globose, 5-6 mm. across, black; seeds 3.5 mm. long, dark reddish brown.   June-July. Thickets in hills and mountains.

Hokkaido, Honshu, Shikoku, Kyushu; com­mon. China, Korea, and Formosa.

var. sinuata (Regel) Rehder Leaves deeply lobed, the lobes coarsely sinu­ate on margin. More frequent in the western part of our area.