Linnaeus, C. (1 May 1753), Species Plantarum 2: 582 [tax. nov.]

• Type: "Habitat in Europae ruderatis."

Willis, J.H. (1973), A Handbook to Plants in Victoria Edn. 2, 2: 593 [secondary reference]

Jacobs, S.W.L. & Pickard, J. (1981), Plants of New South Wales: 136 [secondary reference]

National Herbarium of New South Wales (2009), PlantNET Flora of New South Wales Online: - APC [secondary reference]

common name: Black Horehound [n/a]

• APC Dist.: NSW (doubtfully naturalised), Vic (doubtfully naturalised)

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