Polygonum aubertii is a perennial, slender, twining vine to 5 m, somewhat woody, stem usually angled; leaf sheaths membranous, encircling stem.
Leaves alternate, heart-shaped, to 9 cm long, basal lobes pointed, margin wavy.
Flowers cream-white, about 0.2 cm, broadly 3-winged, widest above, numerous; inflorescences numerous, openly branched; blooming Aug.-Nov.
Fruit dry, one-seeded, enclosed by old flower parts, a black, shiny achene. China (Rehder 1986).
Wetland status: UPL.
Frequency in NYC: Very infrequent.
Habitat: Escaped from cultivation in open areas.
Notes: Much like P. scandens but flowering profusely.