dogbane definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
designating a family (Apocynaceae, order Gentianales) of dicotyledonous herbs, shrubs, and trees, including frangipani and periwinkle
Origin: so named because said to be poisonous to dogs
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
dogbane definition by American Heritage Dictionary
Any of several plants of the genus Apocynum, having milky juice and bell-shaped white or pink flowers.