A genus of trees and low shrubs which resemble Crataegus but are not thorny. Members of the genus have entire leaves and carpels that are free from each other on the inner sides, with stony walls. The fruit has a mealy, fleshy case formed from the receptacle cup. Several species are grown in gardens. There are about 50 species, with a palaearctic and temperate distribution.
Subjects: Plant Sciences and Forestry.