Bryant, G. 1996: Rare and Unusual Plants for New Zealand Gardens. David Bateman, Auckland.
Heenan, P.B.; de Lange, P.J.; Cameron, E.K.; Ogle, C.C.; Champion, P.D. 2004: Checklist of dicotyledons, gymnosperms, and pteridophytes naturalised or casual in New Zealand: additional records 2001–2003. New Zealand Journal of Botany 42: 797–814.
Hooker, W.J. (ed.) 1854: Curtis's Botanical Magazine Comprising the Plants of the Royal Botanical Gardens of Kew and of other botanical establishments in Great Britain with suitable descriptions; and a supplement of botanical and horticultural information. Vol. 80. Lovell, Reeve, London.
Mueller, F.J.H. von 1860–1861: Fragmenta Phytographiae Australiae. Vol. 2. Government Printer, Melbourne.