What does a plum look like?

Plums are small to medium-sized, round to oval-shaped fruits that grow on trees of the genus Prunus. They have smooth skin and a single, large seed in the center. The color of plums can vary greatly depending on the variety, but they are typically some shade of red, purple, or yellow. Some plums are also green when ripe. The flesh of plums is usually soft and juicy, with a sweet or tart flavor. Plums are a popular fruit to eat fresh, but they can also be used in pies, jams, and other desserts.