Ogle, C.C.; de Lange, P.J.; Cameron, E.K.; Parris, B.S.; Champion, P.D. 2021: Checklist of dicotyledons, gymnosperms and pteridophytes naturalised or casual in New Zealand: additional records 2007–2019. Perspectives in Biosecurity Research Series 5: 45–116.
Wilcox, M.; Bradshaw, C.; Cameron, E. 2004: Woody plants of the Auckland Domain. Auckland Botanical Society Journal 59(1): 44–56.