Conn, B.J. & Wilson, T.C. (12 January 2015), Prostanthera (Lamiaceae) from far-north Queensland, Australia. Telopea 18: 6-8, Figs 3, 5 (map) [tax. nov.]

• Type: "Queensland: Cook: Mount Mulligan summit, c. 40 km NW of Dimbulah, J.R. Clarkson 5838, 16 Apr 1985 (NSW797163); isotypes: CANB, DNA, K, L, MEL, MO, PERTH, QRS."

• APC Dist.: Qld

• Etymology: "The specific epithet refers to its occurrence on Mount Mulligan."

Bostock, P.D. & Holland, A.E. (November 2015), Appendix A: New names and name and status changes 2014 census to 2015 census. Introduction to the Census of the Queensland Flora 2015: 23 [secondary reference]

taxonomic synonym: Prostanthera sp. (Mt Mulligan J.R.Clarkson 5838) [n/a]

Council of Heads of Australasian Herbaria (29 September 2022), Australian Plant Census: - APC [secondary reference]

taxonomic synonym: Prostanthera sp. 'Mt Mulligan' (J.R.Clarkson 5838) [n/a] taxonomic synonym: Prostanthera sp. 1 (Mt. Mulligan) [n/a] taxonomic synonym: Prostanthera sp. 1 (Mt Mulligan; J.R.Clarkson 5838) [n/a] taxonomic synonym: Prostanthera sp. (Mt Mulligan J.R.Clarkson 5838) [n/a] taxonomic synonym: Prostanthera sp. Mt Mulligan (J.R.Clarkson 5838) Qld Herbarium [n/a]

• APC Dist.: Qld

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