FrancophonIA/Vikidia-EnFr huggingface dataset:
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A plum is a sweet fruit that grows on a plum tree. The scientific name for the tree is Prunus domestica. When the fruit is dried, it is called a prune. The color "plum" takes its name from the fruit.

Prunus domestica is the European plum. Most of the plums we eat are grown on varieties of this tree. Greengages and damsons are varieties of plums..

The plant is usually  a large shrub  or a small tree. It has attractive white blossom in spring. The branches often have thorns. The fruit can be up to 8 cm across, and is usually sweet (dessert plum).  Some varieties are sour and require cooking with sugar. The fruit  has a single large seed inside.

Some plum trees need another plum tree growing nearby to fertilise the flowers. Without this the plum tree may not produce any fruit.

Plum colored plums are called purple plums and are a deep purple color; other plums are reddish purple (these two varieties are shown in the picture at right). Some other plums can be yellow, red, green or even white. The fruit has a groove running down one side, and a smooth stone (seed). The flesh of the fruit is brownish and is very juicy. The skin can be eaten. It can also be used to make jam and the juice can be used to make wine. It is closely related to the apricot.

There are many cultivars of plum. 
Plums come in a wide variety of colors and sizes. Some are much firmer-fleshed than others, and some have yellow, white, green or red flesh, with equally varying skin color. These are some of the best-kown: