Linnaeus, C. (1 May 1753), Species Plantarum 2: 577 [tax. nov.]

• Type: "Habitat in Angliae, Galliae, Helvetiae inundatis."

Mueller, F.J.H. von (November 1875), Fragmenta Phytographiae Australiae 9(79): 162 [secondary reference]

Mueller, F.J.H. von (1888), Plants, hitherto immigrated and naturalized in Victoria, with indications of their nativity and English popular names. Key to the System of Victorian Plants 1: 535 [secondary reference]

Hamilton, A.G. (1892), On the effect which settlement in Australia has produced upon indigenous vegetation. Journal and Proceedings of the Royal Society of New South Wales 26: 236 [secondary reference]

Black, J.M. (December 1926), Meliaceae - Scrophulariaceae. Flora of South Australia 3: 487 [secondary reference]

common name: Pennyroyal [n/a]

Black, J.M. & Robertson, E.L. (1957), Flora of South Australia Edn. 2, 4: 731 [secondary reference]

common name: Pennyroyal [n/a]

Beadle, N.C.W., Evans, O.D. & Carolin, R.C. (1962), Handbook of the Vascular Plants of the Sydney District and Blue Mountains: 418 [secondary reference]

common name: Pennyroyal [n/a]

Curtis, W.M. (1967), Angiospermae: Plumbaginaceae to Salicaceae. The Student's Flora of Tasmania 3: 545 [secondary reference]

common name: Pennyroyal [n/a]

Burbidge, N.T. & Gray, M. (1970), Flora of the Australian Capital Territory: 312 [secondary reference]

common name: Pennyroyal [n/a]

Tucker, A.O., Harley, R.M. & Fairbrothers, D.E. (1980), The Linnaean Types of Mentha (Lamiaceae). Taxon 29(2/3): 237 [secondary reference]

• Lectotype: "Magnol specimen in Herb. Linnaeus (LINN; Fig. 10)."

Cunningham, G.M., Mulham, W.E., Milthorpe, P.L. & Leigh, J.H. (1981), Plants of Western New South Wales: 574 [secondary reference]

common name: European Pennyroyal [n/a] common name: Pennyroyal [n/a]

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

Green, J.W. (1985), Census of the Vascular Plants of Western Australia Edn. 2: 146 [secondary reference]

Wheeler, J.R. in Marchant, N.G., Wheeler, J.R., Rye, B.L., Bennett, E.M., Lander, N.S. & Macfarlane, T.D. (1987), Lamiaceae. Flora of the Perth Region 1: 563 [secondary reference]

common name: Pennyroyal [n/a]

Conn, B.J. in Harden, G.J. (ed.) (1992), Lamiaceae. Flora of New South Wales 3: 632 [secondary reference]

common name: Pennyroyal [n/a]

Conn, B.J. in Walsh, N.G. & Entwisle, T.J. (ed.) (1999), Lamiaceae. Flora of Victoria 4: 425, Fig. 82e [secondary reference]

common name: Pennyroyal [n/a]

Paczkowska, G. & Chapman, A.R. (2000), The Western Australian Flora, a descriptive catalogue: 274 [secondary reference]

common name: Pennyroyal [n/a]

Bown, D. (2002), New Encyclopedia of Herbs & Their Uses Edn. Revised: 277 [secondary reference]

common name: Pudding Grass [n/a]

Wheeler, J.R., Marchant, N.G. & Lewington, M. (2002), Dicotyledons. Flora of the South West 2: 646 [secondary reference]

common name: Pennyroyal [n/a]

Western Australian Herbarium (2007), FloraBase: the Western Australian Flora Version 2.5: - [secondary reference]

common name: Pennyroyal [n/a]

State Herbarium of South Australia (2008), Fact sheets. The Electronic Flora of South Australia: - [secondary reference]

common name: Pennyroyal [n/a]

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

common name: Pennyroyal [n/a]

Council of Heads of Australasian Herbaria (2010), Australian Plant Census: - APC [secondary reference]

taxonomic synonym: Pulegium vulgare Mill. legitimate

• APC Dist.: WA (naturalised), SA (naturalised), NSW (naturalised), Vic (naturalised), Tas (naturalised)

de Salas, M.F. & Baker, M.L. (2016), Tasmanian vascular plant census. A Census of the Vascular Plants of Tasmania, including Macquarie Island: 52 [secondary reference]

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