Crataegus ser. Populneae

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. Only one species, C. populnea is widespread.

Species
The species in the series are:
 * Crataegus beata
 * Crataegus populnea
 * Crataegus prona
 * Crataegus jesupii
 * Crataegus levis
 * Crataegus delawarensis
 * Crataegus aemula
 * Crataegus stolonifera

The rare and poorly documented species Crataegus haemacarpa may also belong to this series.