Discussed under Olearia rani in Allan 1961, he notes it is "a somewhat polymorphic sp., the status of the different forms not well understood." They are considered synonyms until further study is undertaken.
NZOR Concept Id
NZFLORA (2012-) New Zealand Plant Names - Name based concepts
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.