Wakefield, N.A. (1955), Flora of Victoria: New species and other additions - 3. The Victorian Naturalist 72(4): 55 [tax. nov.]

• Type: "Mount Buller, Victoria, Southern slopes, 5,200 to 5,400 feet, amongst basaltic and granitic rocks under Eucalyptus pauciflora; 9.3.1953; J.H. Willis and N.A. Wakefield. (MEL – paratypes to be placed at Kew and NSW.)"

Jacobs, S.W.L. & Pickard, J. (1981), Plants of New South Wales: 66 [secondary reference]

Hastings, S.M. & Wiecek, B.M. in Harden, G.J. (ed.) (1992), Hydrocotyle. Flora of New South Wales 3: 101 [secondary reference]

Duretto, M.F. in Walsh, N.G. & Entwisle, T.J. (ed.) (1999), Apiaceae. Flora of Victoria 4: 276-278, Fig. 53g [secondary reference]

National Herbarium of New South Wales (2009), PlantNET Flora of New South Wales Online: - [secondary reference]

common name: Pennywort [n/a]

Council of Heads of Australasian Herbaria (2011), Australian Plant Census: - APC [secondary reference]

orthographic variant: Hydrocotyle algidus N.A.Wakef. orth. var.

• APC Dist.: NSW, ACT, Vic

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