osage orange

noun

1. Also called bois d’arc, bowwood. a tree, Maclura pomifera, of the mulberry family, native to the south-central U.S., having hard, yellowish wood and often cultivated for hedges.
2. the round, rough-skinned, inedible fruit of this tree.

noun

1. a North American moraceous tree, Maclura pomifera, grown for hedges and ornament
2. the warty orange-like fruit of this plant