Source: Magness et al. 1971
These are small oval (the damsons) or round (the bullaces), firm fruited plums, produced on small trees, and used mainly for jelly and jam. They were grown in Europe before the Christian era and brought to America by the earliest settlers. The small, compact trees are hardy and disease resistant, and thrive better in eastern U.S. than other European plum types. The skin is very acid, making the fruits rather unsuitable for eating out of hand. However, they make highly esteemed jellies and jams, and are grown commercially for that purpose.
Production in U.S.: No data. Possibly 2,000 tons.
Use: Jellies, jams, culinary.
Part of fruit consumed: Pulp in making jelly and jam, but whole fruit cooked prior to separating out seeds and peel.