crab apple, crabapple - small sour apple; suitable for preserving; "crabapples make a tangy jelly"

apple tree - any tree of the genus Malus especially those bearing firm rounded edible fruits

cherry apple, cherry crab, Malus baccata, Siberian crab, Siberian crab apple - Asian wild crab apple cultivated in many varieties for it small acid usually red fruit used for preserving

Malus angustifolia, Southern crab apple, flowering crab - small tree or shrub of southeastern United States; cultivated as an ornamental for its rose-colored blossoms