The scientific name of black jujube (persimmon tree? Otto? Linn), belonging to Diospyros, deciduous trees, alias soft jujube, milk jujube, wild persimmon, lilac jujube and so on. ?

It looks like a persimmon tree, but its fruit is small and as big as a peanut. In autumn and winter, the branches shrink and turn black, which tastes sweet and the seeds are much bigger.