Distribution
Austria (introduced), Belgium (introduced), Bulgaria (introduced), China, Czech Republic (introduced), Denmark (introduced), France (introduced), Germany (introduced), Hungary (introduced), India, Japan, Myanmar, Nepal, Netherlands (introduced), Romania (introduced), Russian Federation (introduced), South Korea, Sweden (introduced), Switzerland (introduced), Taiwan, Ukraine (introduced), United States of America (introduced), Vietnam

Plants to 1.5(-3) m. Leaves: petiole 1-7 cm, sometimes obscure; blade elliptic, often broadly so, to lanceolate-elliptic, to 35 × 19 cm, base cuneate, apex acuminate. Racemes dense, erect at least in flower and young fruit, 5-30 cm; peduncle to 5 cm; pedicel 6-13 mm, sometimes obscure. Flowers: sepals 5, white or greenish white, elliptic to oblong, equal to subequal, 3-4 mm; stamens 7-10, in 1 whorl; carpels 7-8, distinct. Achenes black, 4 mm, smooth to somewhat rugose; pericarp firmly adherent to seed.
Flowering summer-fall.