Much like no. 18 [Crataegus coccinioides Ashe], but the lvs short-hairy at least on the upper side when young or even at maturity, not crisped, and more likely to be cordate. Que. and s. Ont. to N. Engl. and N.Y.
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.