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.

synonym: Crataegus monogyna.

Polish: głóg jednoszyjkowy

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.

synonyms: Crataegus laevigata, Crataegus oxycantha, may, whitethorn.

Polish: głóg dwuszyjkowy