On rocky, wooded bluffs of streams and black and white oak slopes. Rare.

Stems erect or often twining and to 1.5 m, hirsute; lvs long- petioled, ovate or triangular-ovate, 5-10 cm, more than half as wide, acuminate, coarsely serrate, cordate at base; racemes numerous, lf-opposed, 3-6 cm; staminate fls with 3 sep and 3 stamens; staminate pedicel exceeding the bract, but deciduous from near the base; pistillate fls few, the cal 5-lobed; fr bristly, 10-15 mm thick. Rich soil of rocky woods or hillsides; s. Ind. to s. Mo., s. to Fla. and La. June-Aug. (T. macrocarpa)

Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.

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