- an Old World parasitic plant of the genus Striga, introduced into the southern U.S.: a serious pest of corn and other grass crops.
Origin of witchweed
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- any of several scrophulariaceous plants of the genus Striga, esp S. hermonthica, that are serious pests of grain crops in parts of Africa and Asia
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012