Wolf apple
Its scientific name, Solanum lycocarpum, also refers to the wolf: Lyco- (from Ancient Greek Lykos - Wolf, and carp - fruit. The plant grows as a bush or a tree up to  high. The ripe fruit is edible, the rest of the plant is poisonous. Local people use the fruits to make  jams. The fruit contains a lot of starch. Sometimes, it is also used to feeed livestock.