Prunus apricots, of cherries, and of plums, all of which have cultivars developed for commercial fruit and nut production. The almond is not a true nut, the edible part is the seed. Other species are occasionally cultivated or used for their seed and fruit. A number of species, hybrids, and cultivars are grown as ornamental plants, usually for their profusion of flowers, sometimes for ornamental foliage and shape, and occasionally for their bark. The Tree of 40 Fruit has forty varieties grafted on to one rootstock. Species such as blackthorn ("Prunus spinosa"), are grown for hedging, game cover, and other utilitarian
Prunus salicina they dominate the stone fruit industry in Western Australia. Prunus salicina Prunus salicina (syn. "Prunus triflora" or "Prunus thibetica"), commonly called the Japanese plum or Chinese plum, is a small deciduous tree native to China. It is now also grown in fruit orchards in Korea, Japan, the United States, and Australia. "Prunus salicina" should not be confused with the "Prunus mume", a related species of plum also grown in China, Japan, Korea and Vietnam. Another tree, "Prunus japonica", is also a separate species despite having a Latin name similar to "Prunus salicina"'s common name. Plant breeder Luther Burbank devoted a