caper tree ca·pert·ree uncommon noun 1. shrub or small tree of southern Florida to Central and South America Synonymscaper treebay-leaved caperCapparis flexuosa 2. shrub of southern Florida to West Indies Synonymscaper treeJamaica caper treeCapparis cynophallophora Related words Broader terms caper WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.