Twining herbaceous vine to 5 m, puberulent and somewhat atomiferous to subglabrous; roots fleshy, fascicled; leaves petiolate, deeply cordate, acuminate, entire or sinuately few-toothed, palmately veined, 2.5–14 × 1.5–8.5 cm; infls small and numerous, corymbiform, on axillary peduncles; invol 4–5.5 mm; fls white or pinkish; achenes 1.5–2.5 mm; 2n=38. Climbing on bushes in moist places; on the coastal plain (or near the coast) from Me. to Fla., Ill., and Tex., s. to trop. Amer.; locally inland to Mich., Ind., and Ky.; pantropical. July–Oct.
A climber. It can grow 5 m long.