Olearia hectorii
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.
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.