This tree is the most easily confused with cherries. It is frequently planted, especially the purple-leaved forms.
Cherry plum tree with purple leaves.© Ted Kropiewnicki
Cherry-plum with clusters of one to three flowers.© Andrea Moro
Cherry-plum fruit.© Creative Commons Attribution Share-Alike 3.0 License
Flower with one style.
Flowers in a pair.
Fruit with one seed.