CHICKASAW Prone (Prunus anguslifolia, Marsh). 15 tc 25 feet. The wild plum of the South, from Delaware and Kentucky to the Gulf. Leaves narrow, 1 to S inches long, shiny, trough-like, by a fold along the midrib, like a peach leaf. Fruit round, soft, sweet, more like a cherry; flavor fine for jellies and preserves. Sold in local markets. Often grown in thickets, almost impenetrable because of thorns.