What is the meaning of Black_plum?

A tree or fruit derived from a tree of various species:

1. Prunus domestica (European plum), a common cultivated plum.
2. Prunus nigra (Canada plum), native to eastern North America.
3. Diospyros australis (syn. Diospyros microcarpa; (yellow persimmon), (Australian date plum), native to eastern Australia.

   Prunus domestica (European plum), a common cultivated plum.

   Prunus nigra (Canada plum), native to eastern North America.

   Diospyros australis (syn. Diospyros microcarpa; (yellow persimmon), (Australian date plum), native to eastern Australia.

   Planchonella australis (black apple, yellow buttonwood, yellow bulletwood; syn. Pouteria australis), native to eastern Australia.

   Syzygium cumini (Java plum), native to south and southeast Asia.

   Vitex doniana, native to Africa.

   A dark purple color, attributable to anthocyanins in fruit.

   Source: wiktionary.org