genus of flowering plants having two cotyledons (embryonic leaves) in the seed which usually appear at germination

chiefly tropical trees or shrubs or herbs having milky juice and often showy flowers; many are sources of drugs

any of several poisonous perennial plants of the genus Apocynum having acrid milky juice and bell-shaped white or pink flowers and a very bitter root

chiefly tropical trees or shrubs or herbs having milky juice and often showy flowers; many are sources of drugs

any of several poisonous perennial plants of the genus Apocynum having acrid milky juice and bell-shaped white or pink flowers and a very bitter root