Crataegus calpodendron

Crataegus calpodendron
Scientific classification
Kingdom:	Plantae
(unranked):	Angiosperms
(unranked):	Eudicots
(unranked):	Rosids
Order:	Rosales
Family:	Rosaceae
Genus:	Crataegus
Series:	Macracanthae; (Loudon) Rehder
Species:	C. calpodendron
Binomial name
	Crataegus calpodendron; (Ehrh.) Medik.

Crataegus calpodendron is a species of hawthorn native to much of the eastern United States and to Ontario, Canada. The common name late hawthorn refers to the flowering time, which is later than most North American hawthorns.^[2]

References and external links

^ Phipps, J.B.; Robertson, K.R.; Smith, P.G.; Rohrer, J.R. (1990). A checklist of the subfamily Maloideae (Rosaceae). Canadian Journal of Botany. 68(10): 2209–2269.
^ *Phipps, J.B., O’Kennon, R.J., Lance, R.W. (2003). Hawthorns and medlars. Royal Horticultural Society, Cambridge, U.K.

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[1] Phipps, J.B.; Robertson, K.R.; Smith, P.G.; Rohrer, J.R. (1990). A checklist of the subfamily Maloideae (Rosaceae). Canadian Journal of Botany. 68(10): 2209–2269.

[2] *Phipps, J.B., O’Kennon, R.J., Lance, R.W. (2003). Hawthorns and medlars. Royal Horticultural Society, Cambridge, U.K.

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