EN

Olearia hectorii

Unknown

Overview

A detailed profile for this species is sourced from the IUCN Red List of Threatened Species as assessments become available.

Olearia hectorii faces severe population decline due to browsing pressure from introduced mammals, particularly deer and goats, which prevent natural regeneration. Habitat fragmentation from agricultural development and infrastructure has isolated remaining populations, reducing genetic diversity and limiting dispersal opportunities. Competition from invasive plant species further threatens the limited suitable habitat available to this endemic New Zealand shrub.

Threat summary

Habitat

Olearia hectorii occupies rocky outcrops, cliff faces, and steep slopes in montane and subalpine regions of New Zealand's South Island. This endemic shrub typically grows in well-drained, exposed sites between 300-1200 meters elevation, often in association with native tussock grasslands and scrublands.

Forest· majorShrubland· major

Other threatened species in ASTERACEAE

EN

Bidens cosmoides

Declining
VU

Piptolepis monticola

Unknown
Libanothamnus parvulusCR

Libanothamnus parvulus

Declining
EN

Gynoxys neovelutina

Declining

Frequently asked questions

Why is Olearia hectorii classified as Endangered?
Olearia hectorii is classified as Endangered — facing a very high risk of extinction in the wild — because population numbers are declining steeply and key habitats are under sustained pressure. Olearia hectorii faces severe population decline due to browsing pressure from introduced mammals, particularly deer and goats, which prevent natural regeneration. Habitat fragmentation from agricultural development and infrastructure has isolated remaining populations, reducing genetic diversity and limiting dispersal opportunities. Competition from invasive plant species further threatens the limited suitable habitat available to this endemic New Zealand shrub.
Where does Olearia hectorii live?
Olearia hectorii occurs in across multiple regions. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Olearia hectorii?
The main threats to Olearia hectorii are ai-1, ai-2, ai-3, and ai-4. The full IUCN-classified threat record for this species is detailed on the species page.

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