Lamarck, J.-B.P.A. de M. de in Lamarck, J.-B.P.A. de M. de & Poiret, J.L.M. (1783), Encyclopédie Méthodique, Botanique 1(1): 343 [tax. nov.]

• Type: Azolla filiculoides Lam.

Brown, R. (27 March 1810), Prodromus florae Novae Hollandiae et insulae Van-Diemen, exhibens characteres plantarum quas annis 1802-1805: 166 [secondary reference]

Brown, R. in Flinders, M. (1814), General remarks, geographical and systematical, on the Botany of Terra Australis. A Voyage to Terra Australis 2, Appendix III: 611 [secondary reference]

Mueller, F.J.H. von (1882), Systematic Census of Australian Plants: 136 [secondary reference]

Dixon, W.A. (1906), The Plants of New South Wales: 279 [secondary reference]

Bailey, F.M. (1913), Comprehensive Catalogue of Queensland Plants: 635 [secondary reference]

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

• Etymology: "Greek a, without; zoe, life: because the plants are killed by any drought."

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

• Etymology: Greek a, without; zoe, life; because the plants are killed by any drought"

Tindale, M.D. in Specht, R.L. & Mountford, C.P. (ed.) (1958), The Pteridophyta of Arnhem Land. Records of the American-Australian Scientific Expedition to Arnhem Land No. 3 Botany and Plant Ecology: 184 [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: 80 [secondary reference]

Aston, H.I. (1973), Aquatic Plants of Australia: 30-33 [secondary reference]

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

Bennett, E.M. in Marchant, N.G., Wheeler, J.R., Rye, B.L., Bennett, E.M., Lander, N.S. & Macfarlane, T.D. (1987), Azollaceae. Flora of the Perth Region 1: 56 [secondary reference]

Schneller, J.J. in Kubitzki, K. (ed.) (1990), Azollaceae. The Families and Genera of Vascular Plants 1: 57-60, Fig.20 [secondary reference]

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 [secondary reference]

Chinnock, R.J. in McCarthy, P.M. (ed.) (1998), Azollaceae. Flora of Australia 48: 174-177 [secondary reference]

• APC Dist.: WA, NT, SA, Qld, NSW, NI, ACT, Vic

Short, P.S. in Cowie, I.D., Short, P.S. & Osterkamp Madsen, M. (2000), Algae:Fern Allies. Floodplain Flora. A flora of the coastal floodplains of the Northern Territory, Australia: 49 [secondary reference]

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

Short, P., Dixon, D. & Osterkamp Madsen, M. (2003), A review of the ferns and fern allies of the Northern Territory. The Beagle, Records of the Museums and Art Galleries of the Northern Territory 19(3): 30 [secondary reference]

Smith, A.R., Pryer, K.M., Schuettpelz, E., Korall, P., Schneider, H. & Wolf, P.G. (August 2006), A classification for extant ferns. Taxon 55(3): 711 [secondary reference]

Mabberley, D.J. (1 May 2008), Mabberley's Plant-Book Edn. 3: 84 [secondary reference]

Christenhusz, M.J.M., Zhang, X.C. & Schneider, H. (2011), A linear sequence of extant families and genera of lycophytes and ferns. Phytotaxa 19: 12 [secondary reference]

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

taxonomic synonym: Azolla sect. Euazolla Sadeb. nom. inval.

• APC Dist.: WA, NT, SA, Qld, NSW, NI, ACT, Vic

Field, A.R. (2 January 2020), Classification and typification of Australian lycophytes and ferns based on Pteridophyte Phylogeny Group classification PPG I. Australian Systematic Botany 33(1): 31 [secondary reference]

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