Baker, R.T. (1896), Two new species of Prostanthera from New South Wales. Proceedings of the Linnean Society of New South Wales 21(3): 378, pl. xxii [tax. nov.]

• Type: "At the foot of Cox's Gap Road, Murrumbo, Goulburn River, N.S.W. (R.T.B)."

Dixon, W.A. (1906), The Plants of New South Wales: 232 [secondary reference]

Althofer, G.W. (June 1978), Cradle of Incense: The Story of Australian Prostanthera: 12-13, 40, 44, 49-51, 163, 165, 174 [secondary reference]

• Etymology: "2 coloured leaves"

Jacobs, S.W.L. & Pickard, J. (1981), Plants of New South Wales: 137 [secondary reference]

Conn, B.J. in Harden, G.J. (ed.) (1992), Lamiaceae. Flora of New South Wales 3: 653-654 APC [secondary reference]

• APC Dist.: NSW

Threatened Species and Communities Section, Biodiversity Group, Environment Australia (8 July 1998), Endangered Species Protection Act 1992. Schedules 1, 2 & 3: 24 [secondary reference]

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

---