Balanites aegyptiaca

Ba·la·ni·tes ae·gyp·ti·a·ca

(bal'ă-nī'tēz ē'jip-tī'ā-kă), A genus of tree growing in North Africa and areas around the eastern Mediterranean, with berries that contain an active principle that is deadly to mollusks, miracidia, cercariae, tadpoles, and fish; used as a prophylactic against schistosomiasis by adding it to drinking water. [L. balanos, acorn]