Mueller, F.J.H. von in Hooker, W.J. (ed.) (1857), Nova genera et species aliquot rariores in Plagis Australiae Intratropicis nuperrime detecta. Hooker's Journal of Botany and Kew Garden Miscellany 9: 22 [tax. nov.]

• Type: Newcastelia cladotricha F.Muell.

Mueller, F.J.H. von (1882), Systematic Census of Australian Plants: 102 [secondary reference]

Diels, F.L.E. & Pritzel, E.G. (6 December 1904), Fragmenta Phytographiae Australiae occidentalis. Beitrage zur Kenntnis der Pflanzen Westaustraliens, ihrer Verbreitung und ihrer Lebensverhaltnisse. Botanische Jahrbücher für Systematik, Pflanzengeschichte und Pflanzengeographie 35(2-3): 501-502 [secondary reference]

Bailey, F.M. (1913), Comprehensive Catalogue of Queensland Plants: 381 [secondary reference]

Black, J.M. (December 1926), Meliaceae - Scrophulariaceae. Flora of South Australia 3: 479 [secondary reference]

• Etymology: "After Henry Pelham Clinton, 5th Duke of Newcastle, 1811-64: he was Secretary of State for the Colonies, 1852-54, and supplied funds for the expedition of 1855 to northern Australia, Augustus Gregory being the leader and Mueller the botanist."

Black, J.M. & Robertson, E.L. (1957), Flora of South Australia Edn. 2, 4: 721 [secondary reference]

• Etymology: "After Henry Pelham Clinton, 5th Duke of Newcastle, 1811-64: he was Secretary of State for the Colonies, 1852-54, and supplied funds for the expedition of 1855 to northern Australia, Augustus Gregory being the leader and Mueller the botanist."

Munir, A.A. (29 December 1978), Taxonomic revision of Chloanthaceae trib. Physopsidae. Brunonia 1(4): 589-594, Maps 1-2 [secondary reference]

Munir, A.A. in Jessop, J.P. (ed.) (1981), Chloanthaceae. Flora of Central Australia: 302-303 [secondary reference]

Stanley, T.D. in Stanley, T.D. & Ross, E.M. (1986), Chloanthaceae. Flora of South-eastern Queensland 2: 375 [secondary reference]

Rye, B.L. in Wheeler, J.R. (ed.) (1992), Chloanthaceae. Flora of the Kimberley Region: 797 [secondary reference]

Rye, B.L. (31 July 1996), A taxonomic review of the genera Lachnostachys, Newcastelia and Physopsis (Chloanthaceae) in Western Australia. Nuytsia 11(1): 90, 94 [secondary reference]

Harley, R.M., Atkins, S., Budantsev, A.L., Cantino, P.D., Conn, B.J., Grayer, R., Harley, M.M., de Kok, R., Krestovskaja, T., Morales, R., Paton, A.J., Ryding, O. & Upson, T. in Kubitzki, K. (ed.) (2004), Labiatae. The Families and Genera of Vascular Plants 7: 206 [secondary reference]

Council of Heads of Australasian Herbaria (2006), Australian Plant Census: - APC [secondary reference]

orthographic variant: Newcastlia F.Muell. orth. var.

• APC Dist.: WA, NT, SA, Qld

Mabberley, D.J. (1 May 2008), Mabberley's Plant-Book Edn. 3: 584 [secondary reference]

Wilson, T.C., Radunz, E.A., Chen, S.H., Conn, B.J. & Henwood, M.J. (9 August 2021), A new genus and species for Chloantheae (Lamiaceae). Australian Systematic Botany 34(5): 503, Figs 1D, E, 2 (map) [secondary reference]

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