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Crataegus calpodendron (Ehrhart) Medikus. Common name: Pear Hawthorn. Phenology: May-early Jun; Sep-Oct. Habitat: Mixed hardwood forests, open slopes, wooded ravines, streamsides, especially over basic or calcareous rocks. Distribution: 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.

ID notes: Often found as a solitary specimen or in small local populations. One of the latest hawthorns in our area to flower.

Origin/Endemic status: Native

Synonymy : = C, FNA9, GrPl, Il, K4, Mi, NY, Pa, RAB, S, Tn, W, Lance (2014); > Crataegus calpodendron (Ehrh.) Medik. var. calpodendron — F, G; > Crataegus calpodendron (Ehrh.) Medik. var. globosa (Sarg.) E.J.Palmer — F, G; > Crataegus calpodendron (Ehrh.) Medik. var. microcarpa (Chapm.) E.J.Palmer — F, G; > Crataegus carrollensis Sarg. — Sargent (1922a); > Crataegus chapmanii Beadle — S13; > Crataegus microcarpa Chapm.; > Crataegus tomentosa Du Roi. Basionym: Mespilus calpodendron Ehrh. 1788

Links to other floras: = Crataegus calpodendron - FNA9

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Heliophily : 6

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image of plant© Tomás Curtis, some rights reserved (CC BY-NC), uploaded by Tomás Curtis source CC-BY-NC, permission granted to NCBG | Original Image ⭷
image of plant© jim_keesling, some rights reserved (CC BY-NC), uploaded by jim_keesling source CC-BY-NC, permission granted to NCBG | Original Image ⭷
image of plant© Michael J. Oldham, some rights reserved (CC BY-NC), uploaded by Michael J. Oldham source CC-BY-NC, permission granted to NCBG | Original Image ⭷
image of plant© theo_witsell, some rights reserved (CC BY-NC), uploaded by theo_witsell source CC-BY-NC, permission granted to NCBG | Original Image ⭷
image of plantno rights reserved, uploaded by John Kees source CC0 | Original Image ⭷

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Horticultural Information

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