Plants to ca. 25(-35) m, with sour-tasting sap. Stems terete. Leaf blades turning red in autumn, 5.5-23.5 × 2-8 cm, base cuneate to rounded, apex acute to acuminate. Flowers: calyx lobes 1-2 × 0.7-1.4 mm; corolla 4-7 × 2.5-5.5 mm; filaments 2-3.5 mm; anthers with locules narrowed distally, tubulelike; style strongly impressed into apex of ovary. Capsules 3.5-8.5 × 2-4 mm, unicellular-hairy; placentae basal. 2n = 24.
Tree to 20 m, beginning to fl at 2–3 m; lvs oblong, elliptic, or lance-ovate, 10–15 cm, acuminate, entire or serrulate; petioles 1–1.5 cm; racemes 4–7 at end of each branch, widely spreading, 5–15 cm, persistent; pedicels 3–8 mm, minutely bracteolate near the middle; cor 6–7 mm; fr 5–7 mm; 2n=24. Woods, Pa. to s. Ind., s. to Fla. and La. June, July.