Boissier, P.E. (April 1860), Centuria Euphorbiarum: 14 [tax. nov.]

• Type: "Ad Swan River (Drummond no. 670)."

Bentham, G. (23 September 1873), Flora Australiensis 6: 49 [secondary reference]

Mueller, F.J.H. von (1875), Census of the plants of Tasmania, instituted in 1875. Monthly Notices of Papers and Proceedings of the Royal Society of Tasmania 1874: 75 [secondary reference]

Mueller, F.J.H. von (September 1877), List of the plants obtained during Mr. C. Giles's travels in Australia in 1875 and 1876. Journal of Botany, British and Foreign 15: 273 [secondary reference]

Mueller, F.J.H. von (1882), Systematic Census of Australian Plants: 18 [secondary reference]

Mueller, F.J.H. von (December 1889), Second Systematic Census of Australian Plants: 31 [secondary reference]

Rodway, L. (1903), The Tasmanian Flora: 176 [secondary reference]

Dixon, W.A. (1906), The Plants of New South Wales: 66 [secondary reference]

Bailey, F.M. (1913), Comprehensive Catalogue of Queensland Plants: 470 [secondary reference]

common name: Caustic Creeper [n/a]

Black, J.M. (1924), Casuarinaceae - Euphorbiaceae. Flora of South Australia 2: 354, Fig. 156A-B [secondary reference]

Domin, K. (1927), Beitrage zur Flora und Pflanzengeographie Australiens. Bibliotheca Botanica 22(89): 864 [secondary reference]

misapplication: Euphorbia chamaesyce L. legitimate by Mueller, F.J.H. von (1868), Fragmenta Phytographiae Australiae 6(47): 182

Black, J.M. (January 1948), Casuarinaceae-Euphorbiaceae. Flora of South Australia Edn. 2, 2: 508, Fig. 675A-B [secondary reference]

• Etymology: "The specific name commemorates James Drummond, 1784-1863, an indefatigable collector of botanical specimens in Western Australia."

Specht, R.L. in Specht, R.L. & Mountford, C.P. (ed.) (August 1958), The Gymnospermae and Angiospermae collected on the Arnhem Land Expedition. Records of the American-Australian Scientific Expedition to Arnhem Land No. 3 Botany and Plant Ecology: 251 [secondary reference]

Beadle, N.C.W., Evans, O.D. & Carolin, R.C. (1962), Handbook of the Vascular Plants of the Sydney District and Blue Mountains: 210 [secondary reference]

common name: Caustic Weed [n/a]

Chippendale, G.M. & Murray, L.R. (1963), Poisonous Plants of the Northern Territory: 8, 69-70, Pl. 13 [secondary reference]

common name: Caustic Weed [n/a] common name: Milk Weed [n/a] common name: Deadly Nightshade [n/a] common name: Milk Spurge [n/a] common name: Red Soldier [n/a] common name: Caustic Creeper [n/a]

Curtis, W.M. (1967), Angiospermae: Plumbaginaceae to Salicaceae. The Student's Flora of Tasmania 3: 632 [secondary reference]

common name: Caustic Weed [n/a]

Burbidge, N.T. & Gray, M. (1970), Flora of the Australian Capital Territory: 245 [secondary reference]

common name: Caustic Weed [n/a]

Chippendale, G.M. (17 April 1972), Check List of Northern Territory Plants. Proceedings of the Linnean Society of New South Wales 96(4): 244 [secondary reference]

Hassall, D.C. (1976), Numerical and cytotaxonomic evidence for generic delimitation in Australian Euphorbieae. Australian Journal of Botany 24(5): 640 [basionym]

basionym of: Chamaesyce drummondii (Boiss.) D.C.Hassall legitimate

Cunningham, G.M., Mulham, W.E., Milthorpe, P.L. & Leigh, J.H. (1981), Plants of Western New South Wales: 455-456 [secondary reference]

common name: Spurgewort [n/a] common name: Balsam [n/a] common name: Creeping Caustic [n/a] common name: Mat Spurge [n/a] common name: Flat Spurge [n/a] common name: Milkweed [n/a] common name: Caustic Creeper [n/a] common name: Caustic Weed [n/a]

Jacobs, S.W.L. & Pickard, J. (1981), Plants of New South Wales: 116 [secondary reference]

nomenclatural synonym: Chamaesyce drummondii (Boiss.) D.C.Hassall legitimate taxonomic synonym: Euphorbia cinerea W.Fitzg. legitimate

Kalotas, A. in Jessop, J.P. (ed.) (1981), Euphorbia. Flora of Central Australia: 186 [secondary reference]

common name: mat spurge [n/a] common name: milk weed [n/a] common name: Caustic weed [n/a]

Stanley, T.D. in Stanley, T.D. & Ross, E.M. (1984), Euphorbiaceae. Flora of South-eastern Queensland 1: 412, 414, Figs 65H & 65T [secondary reference]

nomenclatural synonym: Chamaesyce drummondii (Boiss.) D.C.Hassall legitimate common name: Mat Spurge [n/a] common name: Caustic Weed [n/a]

Green, J.W. (1985), Census of the Vascular Plants of Western Australia Edn. 2: 107 [secondary reference]

Gray, M. & Michael, P.W. (1986), List of plants collected at the old Flemington Saleyards, Sydney, New South Wales. Plant Protection Quarterly 1(4): 139 [secondary reference]

common name: Caustic weed [n/a]

Weber, J.Z. in Jessop, J.P. & Toelken, H.R. (ed.) (1986), Flora of South Australia Edn. 4, 2: 748 [secondary reference]

Dunlop, C.R. (1987), Checklist of the Vascular Plants of the Northern Territory. Technical Report: Conservation Commission of the Northern Territory 26: 30 [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), Euphorbiaceae. Flora of the Perth Region 1: 449 [secondary reference]

common name: Caustic Weed [n/a]

James, T.A. & Harden, G.J. in Harden, G.J. (ed.) (1990), Euphorbiaceae. Flora of New South Wales 1: 429 [pro parte nomenclatural synonym]

pro parte nomenclatural synonym of: Chamaesyce drummondii (Boiss.) D.C.Hassall legitimate

James, T.A. & Harden, G.J. in Harden, G.J. (ed.) (1990), Euphorbiaceae. Flora of New South Wales 1: 429 [pro parte taxonomic synonym]

pro parte taxonomic synonym of: Chamaesyce dallachyana (Baill.) D.C.Hassall legitimate

Wheeler, J.R. in Wheeler, J.R. (ed.) (1992), Euphorbiaceae. Flora of the Kimberley Region: 605, Fig. 184G, 185G, 186G [secondary reference]

nomenclatural synonym: Chamaesyce drummondii (Boiss.) D.C.Hassall legitimate taxonomic synonym: Euphorbia cinerea W.Fitzg. legitimate common name: Caustic weed [n/a]

Kenneally, K.F., Edinger, D.C. & Willing, T. (1996), Broome and Beyond. Plants and people of the Dampier Peninsula, Kimberley, Western Australia: 102 [secondary reference]

common name: Mat Spurge [n/a] common name: Caustic Weed [n/a]

Jeanes, J.A. in Walsh, N.G. & Entwisle, T.J. (ed.) (1999), Euphorbiaceae. Flora of Victoria 4: 62-63, Fig. 9i [secondary reference]

nomenclatural synonym: Chamaesyce drummondii (Boiss.) D.C.Hassall legitimate common name: Flat Spurge [n/a]

James, T.A. & Harden, G.J. in Harden, G.J. (ed.) (2000), Euphorbiaceae. Flora of New South Wales Revised Edition 1: 439 [pro parte nomenclatural synonym]

pro parte nomenclatural synonym of: Chamaesyce drummondii (Boiss.) D.C.Hassall legitimate

James, T.A. & Harden, G.J. in Harden, G.J. (ed.) (2000), Euphorbiaceae. Flora of New South Wales Revised Edition 1: 429 [pro parte taxonomic synonym]

pro parte taxonomic synonym of: Chamaesyce dallachyana (Baill.) D.C.Hassall legitimate

Jessup, L.W. (2003), Flora of South-eastern Queensland Volume 1 Changes to names or status of taxa: - [nomenclatural synonym]

nomenclatural synonym of: Chamaesyce drummondii (Boiss.) D.C.Hassall legitimate

Council of Heads of Australasian Herbaria (2009), Australian Plant Census: - [secondary reference]

orthographic variant: Euphorbia drummondi Boiss. orth. var. nomenclatural synonym: Euphorbia drummondii Boiss. var. drummondii legitimate nomenclatural synonym: Chamaesyce drummondii (Boiss.) D.C.Hassall legitimate taxonomic synonym: Euphorbia drummondii var. rubescens Benth. legitimate taxonomic synonym: Euphorbia cinerea W.Fitzg. legitimate misapplication: Euphorbia muelleri Boiss. legitimate by Gardner, C.A. (May 1931), Part III. Geraniaceae–Compositae. Enumeratio Plantarum Australiae Occidentalis: 73

• APC Comment: Treated as Chamaesyce drummondii in Qld and NSW. Euphorbia cinerea is also recognised as a distinct taxon in WA.
• APC Dist.: WA, NT, SA, Qld, NSW, ACT, Vic

Halford, D.A. & Harris, W.K. (20 December 2010), A new species of Euphorbia subgenus Chamaesyce Raf. (Euphorbiaceae) from the Flinders Ranges, South Australia. Journal of the Adelaide Botanic Gardens 24: 43 [pro parte misapplied]

pro parte misapplied to: Euphorbia flindersica Halford & W.K.Harris legitimate by Bentham, G. (23 September 1873), Flora Australiensis 6: 49

[pro parte misapplied]

pro parte misapplied to: Euphorbia flindersica Halford & W.K.Harris legitimate by Weber, J.Z. in Jessop, J.P. & Toelken, H.R. (ed.) (1986), Flora of South Australia Edn. 4, 2: 748

Barker, R.M. & Lang, P.J. (10 July 2012), Name changes associated with the South Australian census of vascular plants for the calendar year 2011. Journal of the Adelaide Botanic Gardens 25: 98 [secondary reference]

nomenclatural synonym: Chamaesyce drummondii (Boiss.) D.C.Hassall legitimate

Halford, D.A. & Harris, W.K. (21 December 2012), A taxonomic revision of Euphorbia section Anisophyllum Roeper (Euphorbiaceae) in Australia. Austrobaileya 8(4): 484-485, Figs 4, 25N, Map 15 [secondary reference]

• Type: "[Western Australia.] Swan River, s.d., [J.] Drummond 670 (holo: G 191672 n.v. [image seen]; iso: G 191671 n.v. [image seen], K 186497, P 313102)."

Parker, C.M. & Biggs, L.J. (1 May 2014), Updates to Western Australia's vascular plant census for 2013. Nuytsia 24: 56 [secondary reference]

nomenclatural synonym: Euphorbia drummondii Boiss. var. drummondii legitimate

Council of Heads of Australasian Herbaria (2016), Australian Plant Census: - APC [secondary reference]

orthographic variant: Euphorbia drummondi Boiss. orth. var. nomenclatural synonym: Euphorbia drummondii Boiss. var. drummondii legitimate nomenclatural synonym: Chamaesyce drummondii (Boiss.) D.C.Hassall legitimate misapplication: Euphorbia muelleri Boiss. legitimate by Gardner, C.A. (May 1931), Part III. Geraniaceae–Compositae. Enumeratio Plantarum Australiae Occidentalis: 73 misapplication: Euphorbia chamaesyce L. legitimate by Paczkowska, G. & Chapman, A.R. (2000), The Western Australian Flora, a descriptive catalogue: 245

• APC Dist.: WA, NT, Qld, NSW

Council of Heads of Australasian Herbaria (2016), Australian Plant Census: - [pro parte misapplied]

pro parte misapplied to: Euphorbia inappendiculata var. queenslandica Domin legitimate by Weber, J.Z. in Jessop, J.P. & Toelken, H.R. (ed.) (1986), Flora of South Australia Edn. 4, 2: 748

Council of Heads of Australasian Herbaria (2016), Australian Plant Census: - [misapplied]

misapplied to: Euphorbia cinerea W.Fitzg. legitimate by Wheeler, J.R. in Wheeler, J.R. (ed.) (1992), Euphorbiaceae. Flora of the Kimberley Region: 605, Fig. 184G, 185G, 186G

de Salas, M.F. & Baker, M.L. (2016), Tasmanian vascular plant census. A Census of the Vascular Plants of Tasmania, including Macquarie Island: 42 [secondary reference]

nomenclatural synonym: Chamaesyce drummondii (Boiss.) D.C.Hassall legitimate

• Text: "... sensu Curtis (1967) recorded in error"

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