Linnaeus, C. (1 May 1753), Species Plantarum 1: 434 [tax. nov.]

• Type: "Habitat in Aethiopia."

Black, J.M. (1952), Flora of South Australia Edn. 2, 3: 535 [secondary reference]

Curtis, W.M. (1956), The Student's Flora of Tasmania 1: 96 [secondary reference]

taxonomic synonym: Oxalis cernua Thunb. legitimate common name: Soursob [n/a]

Beadle, N.C.W., Evans, O.D. & Carolin, R.C. (1962), Handbook of the Vascular Plants of the Sydney District and Blue Mountains: 169 [secondary reference]

common name: Soursob [n/a]

Eichler, Hj. (1965), Supplement to J.M.Black's Flora of South Australia (Second Edition, 1943-1957): 200 [secondary reference]

taxonomic synonym: Oxalis cernua Thunb. legitimate

Chippendale, G.M. (17 April 1972), Check List of Northern Territory Plants. Proceedings of the Linnean Society of New South Wales 96(4): 242 [secondary reference]

Curtis, W.M. & Morris, D.I. (1975), Angiospermae: Ranunculaceae to Myrtaceae. The Student's Flora of Tasmania Edn. 2, 1: 101 [secondary reference]

taxonomic synonym: Oxalis cernua Thunb. legitimate common name: Soursob [n/a]

Carolin, R.C. in Jessop, J.P. (ed.) (1981), Oxalidaceae. Flora of Central Australia: 177 [secondary reference]

taxonomic synonym: Oxalis cernua Thunb. legitimate common name: Soursob [n/a]

Cunningham, G.M., Mulham, W.E., Milthorpe, P.L. & Leigh, J.H. (1981), Plants of Western New South Wales: 435-436 [secondary reference]

common name: Variable Wood-sorrel [n/a] common name: African Wood-sorrel [n/a] common name: Cape Cow-slip [n/a] common name: Oxalis [n/a] common name: Yellow-flowered Oxalis [n/a] common name: Soursop [n/a] common name: Bemuda Buttercup [n/a] common name: Soursob [n/a]

Jacobs, S.W.L. & Pickard, J. (1981), Plants of New South Wales: 172 [secondary reference]

taxonomic synonym: Oxalis cernua Thunb. legitimate

Ross, E.M. in Stanley, T.D. & Ross, E.M. (1984), Oxalidaceae. Flora of South-eastern Queensland 1: 398 [secondary reference]

taxonomic synonym: Oxalis cernua Thunb. legitimate common name: Soursob [n/a]

Green, J.W. (1985), Census of the Vascular Plants of Western Australia Edn. 2: 102 [secondary reference]

taxonomic synonym: Oxalis cernua Thunb. legitimate

Bennett, E.M. in Marchant, N.G., Wheeler, J.R., Rye, B.L., Bennett, E.M., Lander, N.S. & Macfarlane, T.D. (1987), Oxalidaceae. Flora of the Perth Region 1: 495, Fig. 199 [secondary reference]

common name: Soursop [n/a] common name: Soursob [n/a]

Dunlop, C.R. (1987), Checklist of the Vascular Plants of the Northern Territory. Technical Report: Conservation Commission of the Northern Territory 26: 58 [secondary reference]

Conn, B.J. in Harden, G.J. (ed.) (1992), Oxalidaceae. Flora of New South Wales 3: 20, pl.1 [secondary reference]

taxonomic synonym: Oxalis cernua Thunb. legitimate

Conn, B.J., Jeanes, J.A. & Richards, P.G. in Walsh, N.G. & Entwisle, T.J. (ed.) (1999), Oxalidaceae. Flora of Victoria 4: 215, Fig. 40a APC [secondary reference]

taxonomic synonym: Oxalis cernua Thunb. legitimate common name: Sour-sob [n/a]

• APC Dist.: WA (naturalised), NT (naturalised), SA (naturalised), Qld (naturalised), NSW (naturalised), Vic (naturalised), Tas (naturalised)

Wheeler, J.R., Marchant, N.G. & Lewington, M. (2002), Dicotyledons. Flora of the South West 2: 729 [secondary reference]

common name: Soursop [n/a] common name: Soursob [n/a]

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: 332-333, photos 1-3 [secondary reference]

common name: Soursob [n/a]

de Salas, M.F. & Baker, M.L. (2016), Tasmanian vascular plant census. A Census of the Vascular Plants of Tasmania, including Macquarie Island: 61 [secondary reference]

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