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Rich, moist woods.
Southwest PA and southern OH to southern IL, south to northern GA and northern AL.
Canopy tree, to 30 m; leaves opposite, palmately compound; leaflets 5, dark bluish green, often drooping, oblanceolate to narrowly obovate, 10-15 cm, finely serrate, pubescent beneath when young; inflorescence 10-15 cm, the pedicels cand calyx with small stipitate glands; calyx tubular, 7-16 mm, shallowly lobed; petals 4, dull yellow to purplish or reddish, villous on the margin, the laterals 1.5-2.5 cm, with broadly elliptic blade and exsert claw, the upper 2-3 cm, with a much smaller blade on a long claw; stamens 7 or 8, equaling or shorter than the petals; fruit smooth, 5-8 cm.
Flowers May or June
Wetland indicator: FACU
This tree is hardy well north of its natural range. Can hybridize with A. glabra.
Gleason, Henry A.
and A. Cronquist. 1991. Manual of Vascular Plants of Northeastern United States
and Adjacent Canada. Second Ed.
The New York Botanical Garden. Bronx, NY
© Michael Hough 2018