Plum (also known as green plum), is a rose, is the fruit of fruit plum tree, but the general viewing plum is another few plums. Plum is also known as plum, green plum, plum. Plum is a deciduous tree, red, pink or white, blooming in the cold winter and spring season. The fruit is spherical and processed as food. [1] Fruit plum is apricot plum of the genus Rosaceae (Armeniaca mume Sieb.) plant. Also known as green plum, plum, sour plum. Origined in China, is a subtropical specialty fruit tree.