| Noun | 1. | wild plum tree - an uncultivated plum tree or shrub plum, plum tree - any of several trees producing edible oval fruit having a smooth skin and a single hard stone Alleghany plum, Allegheny plum, Prunus alleghaniensis, sloe - wild plum of northeastern United States having dark purple fruits with yellow flesh American red plum, August plum, goose plum, Prunus americana - wild plum trees of eastern and central North America having red-orange fruit with yellow flesh chickasaw plum, hog plum bush, Prunus angustifolia, hog plum - small native American shrubby tree bearing small edible yellow to reddish fruit beach plum, beach plum bush, Prunus maritima - seacoast shrub of northeastern North America having showy white blossoms and edible purple fruit evergreen cherry, holly-leaf cherry, holly-leaved cherry, islay, Prunus ilicifolia - California evergreen wild plum with spiny leathery leaves and white flowers |