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Definition of Black archangel
1. Noun. Ill-smelling European herb with rugose leaves and whorls of dark purple flowers.
Exact synonyms: Ballota Nigra, Black Horehound, Fetid Horehound, Stinking Horehound
Generic synonyms: Herb, Herbaceous Plant
Group relationships: Ballota, Genus Ballota
Generic synonyms: Herb, Herbaceous Plant
Group relationships: Ballota, Genus Ballota