Strasburger, E. (1873), Ueber Azolla: 78 [comb. nov.]

basionym: Azolla rubra R.Br. legitimate

Black, J.M. (1922), Cyatheaceae - Orchidaceae. Flora of South Australia 1: 43 [secondary reference]

nomenclatural synonym: Azolla rubra R.Br. legitimate

Black, J.M. (1943), Flora of South Australia Edn. 2, 1: 42. Fig. 30 [secondary reference]

nomenclatural synonym: Azolla rubra R.Br. legitimate

Black, J.M. (January 1948), Casuarinaceae-Euphorbiaceae. Flora of South Australia Edn. 2, 2: 255 [nomenclatural synonym]

nomenclatural synonym of: Azolla rubra R.Br. legitimate

Beadle, N.C.W., Evans, O.D. & Carolin, R.C. (1962), Handbook of the Vascular Plants of the Sydney District and Blue Mountains: 81 [secondary reference]

Eichler, Hj. (1965), Supplement to J.M.Black's Flora of South Australia (Second Edition, 1943-1957): 32 [secondary reference]

nomenclatural synonym: Azolla rubra R.Br. legitimate

Aston, H.I. (1973), Aquatic Plants of Australia: 32 [taxonomic synonym]

taxonomic synonym of: Azolla filiculoides Lam. legitimate

Chinnock, R.J. & Henshall, T.S. in Jessop, J.P. (ed.) (1981), Pteridophyta. Flora of Central Australia: 12 [taxonomic synonym]

taxonomic synonym of: Azolla filiculoides Lam. legitimate

Cunningham, G.M., Mulham, W.E., Milthorpe, P.L. & Leigh, J.H. (1981), Plants of Western New South Wales: 34 [secondary reference]

common name: Duckweed [n/a] common name: Bung Weed [n/a] common name: Pacific Azolla [n/a] common name: Red Azolla [n/a]

Wilson, Peter G. in Harden, G.J. (ed.) (1990), Azollaceae. Flora of New South Wales 1: 72 [secondary reference]

Entwisle, T.J. in Walsh, N.G. & Entwisle, T.J. (ed.) (1994), Ferns and Allied Plants. Flora of Victoria Edn. 1, 2: 110 [nomenclatural synonym]

nomenclatural synonym of: Azolla filiculoides Lam. legitimate

Chinnock, R.J. in McCarthy, P.M. (ed.) (1998), Azollaceae. Flora of Australia 48: 176 [taxonomic synonym]

taxonomic synonym of: Azolla filiculoides Lam. legitimate

Wilson, Peter G. in Harden, G.J. (ed.) (2000), Azollaceae. Flora of New South Wales Revised Edition 1: 72 [secondary reference]

Tindale, M.D. & Roy, S.K. (23 December 2002), A cytotaxonomic survey of the Pteridophyta of Australia. Australian Systematic Botany 15(6): 861 [secondary reference]

Council of Heads of Australasian Herbaria (2006), Australian Plant Census: - [taxonomic synonym]

taxonomic synonym of: Azolla filiculoides Lam. legitimate

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

nomenclatural synonym of: Azolla rubra R.Br. legitimate

---