Linnaeus, C. (1 May 1753), Species Plantarum 1: 454 [tax. nov.]

• Type: "Habitat in India."

Millspaugh, C.F. (6 August 1909), Praenunciae Bahamenses—II. Contributions to a flora of the Bahamian archipelago. Publications of the Field Columbian Museum, Botanical Series 2(7): 303 [basionym]

basionym of: Chamaesyce hirta (L.) Millsp. legitimate

Anderson, R.H. (8 August 1939), The naturalised flora of New South Wales (excluding Gramineae). Contributions from the New South Wales National Herbarium 1(1): 25 [secondary reference]

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]

taxonomic synonym: Euphorbia pilulifera f. humifusa Domin legitimate

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]

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

nomenclatural synonym: Chamaesyce hirta (L.) Millsp. legitimate taxonomic synonym: Euphorbia pilulifera L. legitimate

Kalotas, A. in Jessop, J.P. (ed.) (1981), Euphorbia. Flora of Central Australia: 186-187 [secondary reference]

common name: Asthma plant [n/a]

Stanley, T.D. in Stanley, T.D. & Ross, E.M. (1984), Euphorbiaceae. Flora of South-eastern Queensland 1: 413-414, Fig. 65J [secondary reference]

nomenclatural synonym: Chamaesyce hirta (L.) Millsp. legitimate taxonomic synonym: Euphorbia pilulifera L. legitimate common name: Asthma Plant [n/a]

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

doubtful taxonomic synonym: Euphorbia chrysochaeta W.Fitzg. legitimate misapplication: Euphorbia pilulifera L. legitimate by Gardner, C.A. (May 1931), Part III. Geraniaceae–Compositae. Enumeratio Plantarum Australiae Occidentalis: 73 misapplication: Euphorbia pilulifera L. legitimate by Beard, J.S. in Beard, J.S. (ed.) (1965), Descriptive Catalogue of West Australian Plants: 58

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]

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

nomenclatural synonym of: Chamaesyce hirta (L.) Millsp. legitimate

Wheeler, J.R. in Wheeler, J.R. (ed.) (1992), Euphorbiaceae. Flora of the Kimberley Region: 605, Fig. 183E, 184I, 185I, 186I [secondary reference]

nomenclatural synonym: Chamaesyce hirta (L.) Millsp. legitimate common name: Asthma plant [n/a]

Du Puy, D.J. & Telford, I.R.H. (1993), Euphorbiaceae. Flora of Australia 50: 277, Fig. 45D [secondary reference]

nomenclatural synonym: Chamaesyce hirta (L.) Millsp. legitimate taxonomic synonym: Euphorbia pilulifera L. legitimate common name: Ara tanan [n/a]

Hyland, B.P.M., Gray, B. & Elick, R.W. in Cooper, W.E. & Cooper, W.T. (1994), Appendix I: Provisional Species List. Fruits of the Rainforest: 304 [secondary reference]

Williams, D.G. (1994), Vegetation and flora of the Cocos (Keeling) Islands. Atoll Research Bulletin 404: 22 [secondary reference]

Thomson, B.G. in Dunlop, C.R., Leach, G.J. & Cowie, I.D. (1995), Euphorbia. Flora of the Darwin Region 2: 217, Fig. 72 [secondary reference]

nomenclatural synonym: Chamaesyce hirta (L.) Millsp. legitimate common name: Asthma Plant [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: Asthma Plant [n/a]

Pike, G.D. & Leach, G.J. (1997), Handbook of the vascular plants of Ashmore and Cartier Islands: 55-56 [secondary reference]

taxonomic synonym: Euphorbia pilulifera L. legitimate common name: Asthma plant [n/a]

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

nomenclatural synonym of: Chamaesyce hirta (L.) Millsp. 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 hirta (L.) Millsp. legitimate

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

nomenclatural synonym: Chamaesyce hirta (L.) Millsp. legitimate taxonomic synonym: Euphorbia chrysochaeta W.Fitzg. legitimate taxonomic synonym: Euphorbia pilulifera f. viridis Domin legitimate taxonomic synonym: Euphorbia pilulifera f. rubromaculata Domin legitimate taxonomic synonym: Euphorbia pilulifera f. humifusa Domin legitimate misapplication: Euphorbia pilulifera L. legitimate by Mueller, F.J.H. von (1863), Fragmenta Phytographiae Australiae 4(25): 35 misapplication: Euphorbia pilulifera L. legitimate by Bentham, G. (23 September 1873), Flora Australiensis 6: 51 misapplication: Euphorbia pilulifera L. legitimate by Bailey, F.M. (1902), The Queensland Flora 5: 1400 misapplication: Euphorbia pilulifera L. legitimate by Gardner, C.A. (May 1931), Part III. Geraniaceae–Compositae. Enumeratio Plantarum Australiae Occidentalis: 73

• APC Comment: Treated as Chamaesyce hirta in Qld and NSW.
• APC Dist.: WA (naturalised), ChI (naturalised), CoI (naturalised), NT (naturalised), Qld (naturalised), NSW (naturalised)

Halford, D.A. & Harris, W.K. (21 December 2012), A taxonomic revision of Euphorbia section Anisophyllum Roeper (Euphorbiaceae) in Australia. Austrobaileya 8(4): 497-500, Fig. 26D, Map 21 [secondary reference]

nomenclatural synonym: Chamaesyce hirta (L.) Millsp. legitimate taxonomic synonym: Euphorbia chrysochaeta W.Fitzg. legitimate taxonomic synonym: Euphorbia pilulifera f. viridis Domin legitimate taxonomic synonym: Euphorbia pilulifera f. rubromaculata Domin legitimate taxonomic synonym: Euphorbia pilulifera f. humifusa Domin legitimate

Council of Heads of Australasian Herbaria (31 July 2018), Australian Plant Census: - APC [secondary reference]

nomenclatural synonym: Chamaesyce hirta (L.) Millsp. legitimate taxonomic synonym: Euphorbia chrysochaeta W.Fitzg. nom. inval., nom. nud. taxonomic synonym: Euphorbia chrysochaeta W.Fitzg. legitimate taxonomic synonym: Euphorbia pilulifera f. humifusa Domin legitimate taxonomic synonym: Euphorbia pilulifera f. rubromaculata Domin legitimate taxonomic synonym: Euphorbia pilulifera f. viridis Domin legitimate misapplication: Euphorbia pilulifera L. legitimate by Mueller, F.J.H. von (1863), Fragmenta Phytographiae Australiae 4(25): 35 misapplication: Euphorbia pilulifera L. legitimate by Bentham, G. (23 September 1873), Flora Australiensis 6: 51 misapplication: Euphorbia pilulifera L. legitimate by Bailey, F.M. (1902), The Queensland Flora 5: 1400 misapplication: Euphorbia pilulifera L. legitimate by Gardner, C.A. (May 1931), Part III. Geraniaceae–Compositae. Enumeratio Plantarum Australiae Occidentalis: 73

• APC Dist.: WA (naturalised), CoI (naturalised), ChI (naturalised), NT (naturalised), Qld (naturalised), NSW (naturalised)

---