Connor, H.E.; Edgar, E. 1987: Name changes in the indigenous New Zealand flora, 1960–1986 and Nomina Nova IV, 1983–1986. New Zealand Journal of Botany 25: 115–170.
de Lange, P.J.; Rolfe, J.R.; Barkla J.W.; Courtney, S.P.; Champion, P.D.; Perrie, L.R.; Beadel, S.N.; Ford, K.A.; Breitwieser, I.; Schönberger, I.; Hindmarsh-Walls, R.; Heenan, P.B.; Ladley, K. 2018: Conservation status of New Zealand indigenous vascular plants, 2017. New Zealand Threat Classification Series. No. 22. [as Senecio glaucophyllus subsp. toa C.J.Webb] [Naturally Uncommon]
de Lange, P.J.; Rolfe, J.R.; Champion, P.D.; Courtney, S.P.; Heenan, P.B.; Barkla, J.W.; Cameron, E.K.; Norton, D.A.; Hitchmough, R.A. 2013: Conservation status of New Zealand indigenous vascular plants, 2012. New Zealand Threat Classification Series 3. Department of Conservation, Wellington. [as Senecio glaucophyllus subsp. toa C.J.Webb] [Not Threatened]
Godley, E. 2006: A Botanist's Notebook. Manuka Press, Christchurch.
Liew, C.-S.; Courtney, S.P,; de Lange, P.J.; Pelser, P.B. 2021: Taxonomic realignment of Senecio glaucophyllus (Asteraceae; Senecioneae) necessitates a new name for a widespread New Zealand species. New Zealand Journal of Botany 59(3): 376–396.