A prune is a dried plum, most commonly from the European plum (Prunus domestica) tree. Not all plum species or varieties can be dried into prunes. Use of the term prune for fresh plums is obsolete except when applied to varieties of plum grown for drying. In this usage, a prune is the firm-fleshed plum fruit of P. domestica varieties that have a high soluble solids content, and do not ferment during drying. Most prunes are freestone cultivars (i.e., the pit is easy to remove), whereas most plums grown for fresh consumption are clingstone (the pit is more difficult to remove).
https://en.wikipedia.org/wiki/Prune
A prune is a dried plum, most commonly from the European plum (Prunus domestica) tree. Not all plum species or varieties can be dried into prunes. Use of the term prune for fresh plums is obsolete except when applied to varieties of plum grown for drying. In this usage, a prune is the firm-fleshed plum fruit of P. domestica varieties that have a high soluble solids content, and do not ferment during drying. Most prunes are freestone cultivars (i.e., the pit is easy to remove), whereas most plums grown for fresh consumption are clingstone (the pit is more difficult to remove).
