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Definition of Hedge mustard
1. Noun. Stiffly branching Old World annual with pale yellow flowers; widely naturalized in North America; formerly used medicinally.
Exact synonyms: Sisymbrium Officinale
Group relationships: Genus Sisymbrium
Generic synonyms: Herb, Herbaceous Plant
Group relationships: Genus Sisymbrium
Generic synonyms: Herb, Herbaceous Plant