Prunus avium

Prunus avium, commonly called wild cherry, sweet cherry or gean is a species of cherry, a flowering plant in the rose family, Rosaceae. It is native to Eurasia and naturalized elsewhere. It is an ancestor of P. cerasus (sour cherry). All parts of the plant except for the ripe fruit are slightly toxic, containing cyanogenic glycosides. The species is often cultivated as an ornamental tree.