Thunberg, C.P. (1781), Nova Genera Plantarum 1: 19 [tax. nov.]

Cronquist, A.J. (1981), An Integrated System of Classification of Flowering Plants: 557, 869 [secondary reference]

Hufford, L. in Kubitzki, K. (ed.) (2004), Hydrangeaceae. The Families and Genera of Vascular Plants 6: 209-210, Fig. 68 [secondary reference]

Council of Heads of Australasian Herbaria (2007), Australian Plant Census: - APC [secondary reference]

• APC Dist.: NSW (naturalised)

Mabberley, D.J. (1 May 2008), Mabberley's Plant-Book Edn. 3: 265 [secondary reference]

---