About 430 species of deciduous, occasionally evergreen, trees and shrubs.  Leaves alternate, serrate, sometimes entire, with stipules.  Flowers usually white, often pink to red, calyx 5-lobed, 5 petals, stamens many.  Fruit usually fleshy and single seeded.
Prunus: from the Latin name for these plants.

Pronunciation: 
PRU-nus
Family: 
Rosaceae

Pages