Crataegus macrosperma Ashe. Eastern Hawthorn. Phen: Apr-early May; Sep-Oct. Hab: Mesic to subxeric hardwood forests, wooded slopes, rock outcrops, pastures, thickets, mountain balds and rocky summits. Dist: ME to MN, south to GA, AL, AR; C. macrosperma is widespread, particularly common in the Appalachians.
ID notes: C. macrosperma is consistent in its adaxially lightly scabrous-pubescent young leaves, 5-10 stamens, and soft-textured mature fruit. The pyrenes are not unusually large (5-8 mm), so the epithet is somewhat a misnomer.
Origin/Endemic status: Native
Syn: = Ar, FNA9, K1, K3, Pa, Tn, W, Lance (2014); > Crataegus brainerdii – C, Pa, misapplied to material in our area; < Crataegus flabellata – RAB; > Crataegus flabellata – C; > Crataegus fluviatilis – Mi; < Crataegus macrosperma – S; > Crataegus macrosperma – S2; > Crataegus macrosperma var. macrosperma – F, G; > Crataegus macrosperma var. roanensis – F, G; > Crataegus roanensis – S2