SINCE 1828
witchweed
noun
witch·weed
| \ ˈwich-ˌwēd
\
\
Definition of witchweed
: any of a genus (Striga) of yellow-flowered Old World plants of the snapdragon family that are damaging root parasites of grasses (such as sorghum and corn) and that include one (S. asiatica) which is an introduced pest in parts of the southeastern U.S.
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