Species of hawthorn
Series Populneae is a series within the genus Crataegus that contains at least eight species of hawthorn trees and shrubs, native to Eastern North America.[1] Only one species, C. populnea is widespread.[1]
Species
The species in the series are:[1]
The rare and poorly documented species Crataegus haemacarpa may also belong to this series.[1]
References
- ^ a b c d Phipps, J.B. (2015), "Crataegus Linnaeus (sect. Coccineae) ser Populnea J. B. Phipps", in L. Brouillet; K. Gandhi; C.L. Howard; H. Jeude; R.W. Kiger; J.B. Phipps; A.C. Pryor; H.H. Schmidt; J.L. Strother; J.L. Zarucchi (eds.), Flora of North America North of Mexico, vol. 9: Magnoliophyta: Picramniaceae to Rosaceae, New York, Oxford: Oxford University Press, pp. 567–571
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