Crataegus calpodendron (Ehrhart) Medikus. Pear Hawthorn. Phen: May-early Jun; Sep-Oct. Hab: Mixed hardwood forests, open slopes, wooded ravines, streamsides, especially over basic or calcareous rocks. Dist: NY w. to MN, s. to GA, OK. This species is relatively common in its generally northern range, uncommon in its southern range extensions in uplands from VA to MO, and rare in the Coastal Plain of GA, AL.
Origin/Endemic status: Native
Syn: = C, FNA9, GrPl, K1, K3, Mi, Pa, RAB, S, Tn, W, Lance (2014); > Crataegus calpodendron var. calpodendron – F, G; > Crataegus calpodendron var. globosa – F, G; > Crataegus calpodendron var. microcarpa – F, G; > Crataegus carrollensis – Sargent (1922a); > Crataegus chapmanii – S2
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