Crataegus pruinosa (H.L. Wendland) K. Koch var. magnifolia (Sargent) J.B. Phipps. Bigleaf Frosted Hawthorn. Phen: Apr-May; Sep-Oct. Hab: Rocky woodlands, streamsides, chalk barrens. Dist: MO, ?AR.
ID notes: A rare entity having larger leaves (5-7 cm long) than other varieties of C. pruinosa, with rather obscure lobes and an obtuse apex.
Origin/Endemic status: Endemic
Syn: = FNA9, Lance (2014)