Prunus spinosa Prunus spinosa Prunus spinosa, called blackthorn or sloe, is a species of flowering plant in the rose family Rosaceae. It is native to Europe, western Asia, and locally in northwest Africa. It is also locally naturalised in New Zealand, Tasmania and eastern North America. "Prunus spinosa" is a large deciduous shrub or small tree growing to tall, with blackish bark and dense, stiff, spiny branches. The leaves are oval, long and broad, with a serrated margin. The flowers are about in diameter, with five creamy-white petals; they are produced shortly before the leaves in early spring, and are hermaphroditic and
Prunus xueluoensis pseudocerasus". Prunus xueluoensis Prunus xueluoensis is a species of "Prunus" found in Hubei and Jiangxi provinces of China. It is a shrubby tree 0.5 to 3m tall, preferring to grow at 1100 to 1500m above sea level. It is only known from three mountains; Xueluozhai, Lushan and Jinggangshan. It is morphologically similar to "Prunus tomentosa" and "Prunus tianshanica". It differs from them by a number of features including having two to four flowers per inflorescence, many more stamens per flower, a glabrous pistil and a black fruit. Genetically, "P. xueluoensis" is more closely related to "P. polytricha", "P. jingningensis", and