Wollemi Pine

Wollemia nobilis is a coniferous tree in the family Araucariaceae, notable as a "living fossil" with a lineage tracing back tens of millions of years, long thought extinct until its discovery in 1994. Mature individuals can exceed 40 meters in height, with distinctive multi-stemmed trunks covered in bubbly, dark brown bark, and unusual fern-like foliage arranged in flattened sprays. It produces both male and female cones on the same tree, and its ability to coppice—resprouting from the base after damage—has helped individual trees persist for centuries.

As a canopy and subcanopy species, it contributes structure and habitat within the moist forest gullies it occupies.

The species is restricted to a small number of canyon sites within Wollemi National Park in New South Wales, Australia, growing in subtropical moist lowland forest within sheltered, fire-protected gorges.

Its extreme rarity, with only a handful of wild populations, makes it acutely vulnerable. Key threats include the introduced pathogen Phytophthora cinnamomi, which causes root rot, along with drought and shifting climatic conditions that stress an already narrow habitat niche. Wildfires, including increasingly extreme fire events, pose a direct existential risk given the limited number of wild groves.

Unauthorized visitor access risks introducing pathogens or causing physical damage, while the small population size creates genetic bottleneck concerns that reduce adaptive capacity.

Conservation efforts include strict site secrecy and access restrictions, biosecurity protocols to prevent pathogen spread, ex situ propagation and distribution through horticultural trade to reduce collection pressure on wild trees, and seed banking. Fire management planning has been adapted specifically around known grove locations.

Despite these measures, the species' extremely limited distribution and compounding threats mean its wild population remains highly vulnerable, with conservation dependent on continued intervention rather than natural recovery.

Wollemi Pines grow exclusively in sheltered temperate rainforest gorges within sandstone formations of the Blue Mountains, typically in moist, protected sites with filtered sunlight and high humidity. The species occupies narrow canyon environments between 500-1000 meters elevation, where it benefits from consistent moisture and protection from extreme weather events.