dogbane
adj.
5so named because said to be poisonous to dogs6 designating a family (Apocynaceae, order Gentianales) of dicotyledonous herbs, shrubs, and trees, including frangipani and periwinkle
n.
any of a genus (Apocynum) of sometimes poisonous plants of the dogbane family, with opposite, entire leaves, small white or pink flowers, and milky juice