Definition of black plum:
(n) :
Prunus domestica (European plum), the common cultivated plum
(n) :
Prunus nigra (Canada plum), native to eastern North America
(n) :
Syzygium cumini (Java plum), native to south and southeast Asia
(n) :
A tree or fruit derived from a tree of various species:
(n) :
Diospyros australis (syn.Diospyros microcarpa; (yellow persimmon), (Australian date plum), native to eastern Australia
(n) :
Planchonella australis (black apple, yellow buttonwood, yellow bulletwood; syn. Pouteria australis), native to eastern Australia