Prunus spinosa the more shrubby habit with stiffer, wider-angled branches of "P. spinosa"; in summer by the relatively narrower leaves of "P. spinosa", more than twice as long as broad; and in autumn by the colour of the fruit skin purplish black in "P. spinosa" and yellow or red in "P. cerasifera". "Prunus spinosa" has a tetraploid (2"n"=4"x"=32) set of chromosomes. The specific name "" is a Latin term indicating the pointed and thornlike spur shoots characteristic of this species. The common name "" is due to the thorny nature of the shrub, and its very dark bark. The word commonly used
Prunus mume Prunus mume Prunus mume is an Asian tree species classified in the "Armeniaca" section of the genus "Prunus" subgenus "Prunus". Its common names include Chinese plum and Japanese apricot. The flower is usually called plum blossom. This distinct tree species is related to both the plum and apricot trees. Although generally referred to as a plum in English, it is more closely related to the apricot. In Chinese, Japanese and Korean cooking, the fruit of the tree is used in juices, as a flavouring for alcohol, as a pickle and in sauces. It is also used in traditional medicine. The