Arnica oporina G.Forst., Olearia oporina (G.Forst.) Hook.f., Olearia oporina var. robusta Kirk
Vascular – Native
Trees & Shrubs - Dicotyledons
The National Vegetation Survey (NVS) Databank is a physical archive and electronic databank containing records of over 94,000 vegetation survey plots - including data from over 19,000 permanent plots. NVS maintains a standard set of species code abbreviations that correspond to standard scientific plant names from the Ngä Tipu o Aotearoa - New Zealand Plants database.
Current conservation status
The threat classification status of all known New Zealand vascular plant taxa at the rank of species and below were reassessed in 2017 using the New Zealand Threat Classification System (NZTCS) – more information about this can be found on the NZTCS website This report includes a statistical summary and brief notes on changes since 2012 and replaces all previous NZTCS lists for vascular plants. Authors: By Peter J. de Lange, Jeremy R. Rolfe, John W. Barkla, Shannel P. Courtney, Paul D. Champion, Leon R. Perrie, Sarah M. Beadel, Kerry A. Ford, Ilse Breitwieser, Ines Schönberger, Rowan Hindmarsh-Walls, Peter B. Heenan and Kate Ladley. Please note, threat classifications are often suggested by authors when publications fall between NZTCS assessment periods – a suggested threat classification status has not been assessed by the NZTCS panel.
2018 | At Risk – Naturally Uncommon
Previous conservation statuses
2017 | At Risk – Naturally Uncommon | Qualifiers: RR
2012 | At Risk – Naturally Uncommon | Qualifiers: DP, RR
2009 | Not Threatened
2004 | Not Threatened
Small tree with narrow leathery saw-edged dark green leaves that are white underneath and large yellow-centred whiteish daisy-like heads inhabiting the Fiordland coast. Leaves 5-10cm long by 1.5-2cm wide, widest at middle, with large thick teeth along edge. Flowers 3-4cm wide, petals white, centre yellow.
Endemic. South Island along the west and south Fiordland from Martins Bay southwards. Also reported from Rakiura / Stewart Island and some surrounding islands and islets (e.g., Whenahou / Codfish Island).
Coastal. Usually a component of coastal scrub or forest, often on peaty ground, where it is usually associated with muttonbird daisy (Brachyglottis rotundifolia), inaka (Dracophyllum longifolium), and kokomuka (Hebe (Veronica) elliptica).
Macrolearia oporina is closely allied to M. angustifolia and M. chathamica, and on the assumption that all three species were allopatic some botanists have considered them all varieties / subspecies of each other. This view was not upheld by Saldivia et al. (2022) who established the genus Macrolearia, in the process reviewing the status of the species previously treated as macrocephalous Olearia. Saldivia et al. (2022) records M. oporina from Rakiura / Stewart Island and some of the near shore islands and islets to it, suggesting sympatry with M. angustifolia.
NZPCN Fact Sheet citation
Please cite as: de Lange, P.J. (Year at time of access): Macrolearia oporina Fact Sheet (content continuously updated). New Zealand Plant Conservation Network. https://www.nzpcn.org.nz/flora/species/macrolearia-oporina/ (Date website was queried)