Prunus umbellata Prunus umbellata Prunus umbellata, called flatwoods plum, hog plum and sloe plum, is a plum species native to the United States from Virginia, south to Florida, and west to Texas. "Prunus umbellata" can reach in height with a spread. It has alternate serrate green leaves that turn yellow in Autumn. Flowers are white, creamy, or grayish. Fruits are round, purple, and in diameter. "P. umbellata" trees can live up to 40 years and are very difficult to distinguish from "Prunus angustifolia", with which it hybridizes easily. The trees bloom and bear fruit later than other plums. The fruits mature August-October.
Prunus hortulana Prunus hortulana Prunus hortulana, called the hortulan plum and wild goose plum, is a fruit shrub in the rose family found in the central United States in: Arkansas, Iowa, Illinois, Indiana, Kansas, Kentucky, Massachusetts, Maryland, Missouri, Nebraska, Ohio, Oklahoma, Tennessee, Texas, Virginia, West Virginia. Populations east of the Appalachians probably represent naturalizations. "Prunus hortulana" is a deciduous tree with a trunk diameter of up to and an overall height of or more. Leaves are green and hairless on the top but hairy on the underside. White flowers in clusters of 2-4 appear in the Spring. Fruits are red or yellow