Cylindric or pyramidal tree to 20 m; lvs ovate-oblong to obovate, 8-15 cm, short-acuminate, persistently long-hairy beneath, chiefly along the main veins, coarsely and often doubly serrate, the teeth salient or ascending, blunt or retuse, bearing the gland at the summit; pedicels 2-5 cm; sep glabrous; pet 9-15 mm, glabrous; fr globose, 1.5-2.5 cm; stone subglobose; 2n=16. Native of Eurasia, often escaped from cult. in our range, even appearing like a native.
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.