Apocynum apo·cy·num uncommon noun 1. perennial herbs with small pink or white flowers Synonymsgenus Apocynum Related words Word family Apocynum androsaemifoliumApocynum cannabinumApocynum pumilum Broader terms dicot genus Parts Apocynaceae Part of dogbane WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.
