Seringe, N.C. in Candolle, A.P. de (ed.) (1828), Onagrariae, p.p. Prodromus Systematis Naturalis Regni Vegetabilis 3: 41 [tax. nov.]

• Type: "? in Novâ-Hollandiâ. (v.s. in herb. DC ex Mus Paris et comm. a cl. Labillardière.)"

• Comment: Spelling of the specific epithet as "billardiereanum" is in accordance with ICBN Articles 60.7, 60.11 and Rec. 60C.1 (2006).

Mueller, F.J.H. von (20 October 1853), First general report of the Government Botanist on the vegetation of the colony. Victoria - Parliamentary Papers- Votes and Proceedings of the Legislative Assembly: 11 [secondary reference]

Hooker, J.D. (13 May 1856), The botany of the Antarctic voyage of H.M. Discovery ships Erebus and Terror. III. Flora Tasmaniae 1(2): 117 [secondary reference]

Bentham, G. (5 January 1867), Orders XLVIII. Myrtaceae- LXII. Compositae. Flora Australiensis 3: 305 [secondary reference]

Leveille, A.A.H. in Leveille, A.A.H. (ed.) (1894), Le Monde des Plantes 3: 275 [basionym]

basionym of: Epilobium tetragonum var. billardiereanum (Ser.) H.Lev. legitimate

Rodway, L. (1903), The Tasmanian Flora: 60 [secondary reference]

taxonomic synonym: Epilobium pallidiflorum Sol. ex A.Cunn. legitimate

Bailey, F.M. (1913), Comprehensive Catalogue of Queensland Plants: 215 [secondary reference]

Maiden, J.H. & Betche, E. (1916), A Census of New South Wales Plants: 157 [basionym]

basionym of: Epilobium glabellum var. billardiereanum (DC.) Maiden & Betche legitimate

Curtis, W.M. (1963), Angiospermae: Lythraceae to Epacridaceae. The Student's Flora of Tasmania 2: 232, Fig. 62A, 63 [secondary reference]

misapplication: Epilobium tetragonum L. legitimate by Hooker, J.D. (1852), The botany of the Antarctic voyage of H.M. discovery ships Erebus and Terror. II. Flora Novae-Zelandiae 1(1): 60 misapplication: Epilobium tetragonum L. legitimate by Bentham, G. (5 January 1867), Orders XLVIII. Myrtaceae- LXII. Compositae. Flora Australiensis 3: 305 misapplication: Epilobium glabellum G.Forst. legitimate by Rodway, L. (1903), The Tasmanian Flora: 60

Curtis, W.M. (1963), Angiospermae: Lythraceae to Epacridaceae. The Student's Flora of Tasmania 2: 230 [misapplied]

misapplied to: Epilobium gunnianum Hausskn. legitimate by Hooker, J.D. (13 May 1856), The botany of the Antarctic voyage of H.M. Discovery ships Erebus and Terror. III. Flora Tasmaniae 1(2): 117

[misapplied]

misapplied to: Epilobium gunnianum Hausskn. legitimate by Bentham, G. (5 January 1867), Orders XLVIII. Myrtaceae- LXII. Compositae. Flora Australiensis 3: 305

[misapplied]

misapplied to: Epilobium gunnianum Hausskn. legitimate by Rodway, L. (1903), The Tasmanian Flora: 60

Eichler, Hj. (1965), Supplement to J.M.Black's Flora of South Australia (Second Edition, 1943-1957): 244 [secondary reference]

misapplication: Epilobium glabellum G.Forst. legitimate by Black, J.M. (1952), Flora of South Australia Edn. 2, 3: 639, Fig. 865

Raven, P.H. & Raven, T.E. (1976), The genus Epilobium (Onagraceae) in Australasia: a systematic and evolutionary study. New Zealand Department of Scientific and Industrial Research Bulletin 216: 111-114 [secondary reference]

Raven, P.H. & Raven, T.E. (1976), The genus Epilobium (Onagraceae) in Australasia: a systematic and evolutionary study. New Zealand Department of Scientific and Industrial Research Bulletin 216: 131 [misapplied]

misapplied to: Epilobium billardiereanum subsp. intermedium P.H.Raven & Engelhorn legitimate by Eichler, Hj. (1965), Supplement to J.M.Black's Flora of South Australia (Second Edition, 1943-1957): 244

Raven, P.H. & Raven, T.E. (1976), The genus Epilobium (Onagraceae) in Australasia: a systematic and evolutionary study. New Zealand Department of Scientific and Industrial Research Bulletin 216: 127 [nomenclatural synonym]

nomenclatural synonym of: Epilobium billardiereanum Ser. subsp. billardiereanum legitimate

Jacobs, S.W.L. & Pickard, J. (1981), Plants of New South Wales: 171 [secondary reference]

Green, J.W. (1985), Census of the Vascular Plants of Western Australia Edn. 2: 133 [secondary reference]

Stanley, T.D. in Stanley, T.D. & Ross, E.M. (1986), Onagraceae. Flora of South-eastern Queensland 2: 228 [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), Onagraceae. Flora of the Perth Region 1: 430 [secondary reference]

Thompson, J. in George, A.S. (ed.) (1990), Onagraceae. Flora of Australia 18: 234-237 [secondary reference]

nomenclatural synonym: Epilobium tetragonum var. billardiereanum (Ser.) H.Lev. legitimate nomenclatural synonym: Epilobium glabellum var. billardiereanum (DC.) Maiden & Betche legitimate

Dalby, J.M. in Harden, G.J. (ed.) (1991), Onagraceae. Flora of New South Wales 2: 203 [secondary reference]

Jeanes, J.A. in Walsh, N.G. & Entwisle, T.J. (ed.) (1996), Onagraceae. Flora of Victoria 3: 938 [secondary reference]

nomenclatural synonym: Epilobium tetragonum var. billardiereanum (Ser.) H.Lev. legitimate taxonomic synonym: Epilobium glabellum var. billardiereanum (DC.) Maiden & Betche legitimate

Dalby, J.M. in Harden, G.J. (ed.) (2002), Onagraceae. Flora of New South Wales Revised Edition 2: 239 [secondary reference]

Wheeler, J.R., Marchant, N.G. & Lewington, M. (2002), Dicotyledons. Flora of the South West 2: 725-726 [secondary reference]

common name: Variable Willow Herb [n/a] common name: Smooth Willow Herb [n/a]

Council of Heads of Australasian Herbaria (2005), Australian Plant Census: - APC [secondary reference]

orthographic variant: Epilobium billardierianum Ser. orth. var. nomenclatural synonym: Epilobium tetragonum var. billardierianum H.Lev. orth. var. nomenclatural synonym: Epilobium tetragonum var. billardiereanum (Ser.) H.Lev. legitimate nomenclatural synonym: Epilobium glabellum var. billardierianum Maiden & Betche orth. var. nomenclatural synonym: Epilobium glabellum var. billardiereanum (DC.) Maiden & Betche legitimate

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

Barrett, Russell & Tay, Eng Pin (2016), Perth Plants: a Field Guide to the Bushland and Coastal Flora of Kings Park and Bold Park Edn. 2: 130 [secondary reference]

de Salas, M.F. & Baker, M.L. (2016), Tasmanian vascular plant census. A Census of the Vascular Plants of Tasmania, including Macquarie Island: 60 [secondary reference]

misapplication: Epilobium tetragonum L. legitimate by Bentham, G. (5 January 1867), Orders XLVIII. Myrtaceae- LXII. Compositae. Flora Australiensis 3: 305 misapplication: Epilobium glabellum G.Forst. legitimate by Rodway, L. (1903), The Tasmanian Flora: 60

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