Pigeon Plum Tree (Coccoloba diversifolia)Florida Native Shade Tree with Edible, Wildlife Friendly Fruit Pigeon Plum Tree (Coccoloba diversifolia) is a hardy, salt and drought tolerant native tree found along Floridas coasts and throughout the Caribbean. A member of the seagrape family, this evergreen tree is prized for its smooth gray bark, glossy green foliage, and clusters of small purple black fruits. The berries are ediblesweet tart with a hint of astringencyand can be enjoyed fresh,