Crataegus (/krəˈtiːɡəs/), (from the Greek κράτος kratos strength and άκης akis sharp, referring to the thorns of
some species) commonly called hawthorn, thornapple, May-tree, whitethorn, or hawberry, is a large genus of shrubsand trees in the family Rosaceae, native to temperate regions of the Northern Hemisphere in Europe, Asia and North America. The name "hawthorn" was originally applied to the species native to northern Europe, especially the common hawthorn C. monogyna, and the unmodified name is often so used in Britain and Ireland. The name is now also applied to the entire genus and to the related Asian genus Rhaphiolepis. The name haw, originally an Old English term for hedge, applies to the fruit.