Crataegus berberifolia Torrey & A. Gray var. engelmannii (Sargent) Eggleston. Engelmann's Hawthorn. Phen: Apr-May; Aug-Oct. Hab: Mixed hardwood and pine forests of uplands, usually in subxeric to xeric habitats, especially over basic to calcareous soils. Dist: Appears most common in MO and AR, mixed sporadically with the species eastward to e. TN, c. NC.
Origin/Endemic status: Native
Syn: = FNA9, Lance (2014); < Crataegus berberifolia – Ar, K3, Tn; > Crataegus engelmannii – NcTx, S2; > Crataegus sinistra – S2; > Crataegus torva – S2