[Prunus americana var. lanata Sudw., morePrunus lanata (Sudworth) MacKenzie & Bush, Prunus mexicana var. flutonensis (Sarg.) Sarg., Prunus mexicana var. polyandra (Sarg.) Sarg., Prunus pensylvanica var. mollis (Douglas) B. Boivin]
Tree to 12 m, not sprouting from the roots; lvs firm, oblong to oblong-obovate, 6-10 cm, abruptly acuminate, broadly rounded at base, coarsely and usually doubly serrate with broad, acuminate, ovate-triangular teeth 1-2 mm, slightly pubescent and somewhat rugose above, permanently soft-pubescent and ±reticulate-veiny beneath; petiole usually with a pair of distal glands; pedicels usually glabrous, 8-20 mm; hypanthium glabrous or sparsely pubescent; sep narrowly oblong, 2-3 mm, pubescent on both sides; pet white, 8-10 mm; fr purplish-red, glaucous, globose or ellipsoid, 2-3 cm long; stone turgid, obovoid to subglobose. Rocky open woods; Mo. and s. Ill. to Ala. and Tex., and n. Mex., with outlying stations to O., Ky. and S.D. Apr. (P. americana var. lanata)
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.