Meyer, E.H.F. in Meyer, E.H.F. & Drege, J.F. (1838), Commentariorum de Plantis Africae Australioris 2: 202 [tax. nov.]

• Type: "a) Ad rivulos prope Glenfilling, alt. 500 ped., b) ad fluvium Brakrivier prope Modderfontein, alt. 2500 ped. (V, a); c) inter Omsamwubo et Cataractam magnum, alt. 1500 ped. (V, b)."

Schlechter, F.R.R. (1896), De Drege'schen Asclepiadaceen im Ernst Meyer'schen Herbar. Botanische Jahrbücher für Systematik, Pflanzengeschichte und Pflanzengeographie 21(Beiblatt 54): 8 [basionym]

basionym of: Asclepias physocarpa (E.Mey.) Schltr. legitimate

Bailey, J.F. & White, C.T. (1916), Botany. Illustrated notes on the weeds of Queensland No. 4. Queensland Agricultural Journal Series 2 6: 104, t. 10 [secondary reference]

Black, J.M. (December 1926), Meliaceae - Scrophulariaceae. Flora of South Australia 3: 464 [nomenclatural synonym]

nomenclatural synonym of: Asclepias physocarpa (E.Mey.) Schltr. legitimate

Black, J.M. & Robertson, E.L. (1957), Flora of South Australia Edn. 2, 4: 700 [nomenclatural synonym]

nomenclatural synonym of: Asclepias physocarpa (E.Mey.) Schltr. legitimate

Jacobs, S.W.L. & Pickard, J. (1981), Plants of New South Wales: 69 [secondary reference]

nomenclatural synonym: Asclepias physocarpa (E.Mey.) Schltr. legitimate

Ross, E.M. in Stanley, T.D. & Ross, E.M. (1986), Asclepiadaceae. Flora of South-eastern Queensland 2: 310, Fig. 44G [secondary reference]

nomenclatural synonym: Asclepias physocarpa (E.Mey.) Schltr. legitimate common name: Balloon Cotton Bush [n/a]

Harden, G.J. & Williams, J.B. in Harden, G.J. (ed.) (1992), Asclepiadaceae. Flora of New South Wales 3: 527 [secondary reference]

taxonomic synonym: Asclepias physocarpa (E.Mey.) Schltr. legitimate common name: Balloon Cotton Bush [n/a]

Green, P.S. in Wilson, A.J.G. (ed.) (1994), Norfolk Island & Lord Howe Island. Flora of Australia 49: 289-290 [secondary reference]

nomenclatural synonym: Asclepias physocarpa (E.Mey.) Schltr. legitimate common name: Cape Cotton [n/a] common name: Wild Cotton [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: 301 [secondary reference]

Forster, P.I. in Orchard, A.E. (ed.) (1996), Asclepiadaceae. Flora of Australia 28: 218, Fig. 105, Map 249 [secondary reference]

nomenclatural synonym: Asclepias physocarpa (E.Mey.) Schltr. legitimate common name: Swan Plant [n/a] common name: Balloon Cottonbush [n/a]

Hyland, B.P.M., Whiffin, T.P., Christophel, D.C., Gray, B., Elick, R.W. & Ford, A.J. (1999), Australian tropical rain forest trees and shrubs. Australian tropical rain forest trees and shrubs: 57 [secondary reference]

Hyland, B.P.M., Whiffin, T.P., Christophel, D.C., Gray, B. & Elick, R.W. (2003), Australian tropical rain forest plants. Trees, Shrubs and Vines: Code 3428 [secondary reference]

Cooper, W.E. & Cooper, W.T. (2004), Fruits of the Australian Tropical Rainforest: 40 [secondary reference]

common name: Cape Cotton [n/a] common name: Swan Plant [n/a] common name: Balloon Cottonbush [n/a]

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

nomenclatural synonym: Asclepias physocarpa (E.Mey.) Schltr. legitimate misapplication: Gomphocarpus brasiliensis E.Fourn. legitimate by Bailey, F.M. (1900), The Queensland Flora 3: 998

• APC Comment: Hybrid swarms between G. fruticosus and G. physocarpus are common.
• APC Dist.: WA (naturalised), SA (naturalised), Qld (naturalised), NSW (naturalised), LHI (naturalised), NI (naturalised)

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