Note: Do not rely on this information. It is very old.
Damson, named from Damascus, whence it may have been originally introduced into Europe, is a variety of plum (Prunus domestica) with a small, oval, austere fruit, now often growing in a half-wild state. The fruit is made into tarts and into a preserve known as damson cheese. A yellow-fruited variety of the bullace (q.v.) is sold as "white damsons."