Discovered in 1994 by David Noble (1965–) in a remote canyon north-west of Sydney in New South Wales, Australia.

A single canyon (undisclosed to the public) in the Blue Mountains, with a population of less than 100 specimens.

Monoecious, long-lived (500–1,000 years). Wind-pollinated and dispersed. Capable of regenerating from its base.

Evergreen, 25-40m. Bark red-brown, developing distinctive spongy dark tubercles. Foliage arranged helically on the leading shoot; side branches usually single-stemmed and ending in cones. Leaves flat, 3-8cm (5mm wide), bright green. Female cones at the treetop, globular, 12cm, green to brown, disintegrating to release papery winged seeds (6-9mm).

Easily propagated from cuttings, which enabled its distribution to botanic collections worldwide. Plant in well-drained, neutral or acidic soils, sheltered from strong winds. It tolerates full sun but also suits partial shade. Hardy to -5°C and sensitive to hard frosts, though a resinous secretion protects the growing tip.

No notable associations where introduced.

Critically Endangered. The water mould Phytophthora cinnamomi was introduced to the wild population by visitors, where bushfires are a perennial threat.

Ornamental.