Template:De Lange et al., 2009
- de Lange, P.J., Norton, D.A., Courtney, S.P., Heenan, P.B., Barkla, J.W., Cameron, E.K., Hitchmough, R. & Townsend, A.J. 2009. Threatened and uncommon plants of New Zealand (2008 revision). New Zealand Journal of Botany 47(1): 61–96. DOI: 10.1080/00288250909509794