English hawthorn, n.
thorny Eurasian shrub of small tree having dense clusters of white to scarlet flowers followed by deep red berries; established as an escape in eastern North America
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Crataegus laevigata Crataegus oxycantha English hawthorn may whitethorn
European hawthorn having deeply cleft leaves and bright red fruits; widely cultivated in many varieties and often grown as impenetrable hedges; established as an escape in eastern North America
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Crataegus monogyna English hawthorn