Eucalyptus squamosa

Eucalyptus squamosa, commonly known as scaly bark or wallangarra white gum, is a small to medium-sized tree in the family Myrtaceae, typically reaching 8 to 15 metres in height. It is distinguished by its characteristic scaly, flaky bark that persists on the trunk and larger branches, giving rise to its common name, while smaller branches shed bark to reveal smooth, pale grey to cream surfaces. The lance-shaped to curved adult leaves are a dull grey-green, and the tree produces small clusters of white flowers followed by cup-shaped to barrel-shaped woody fruit capsules typical of the genus.

This species is endemic to a restricted range in eastern Australia, occurring primarily on the New South Wales and Queensland border region, particularly around the Girraween and Bald Rock areas, where it grows on rocky, skeletal soils derived from granite outcrops. It typically forms part of open woodland or dry sclerophyll forest communities, often in association with other eucalypts adapted to shallow, nutrient-poor substrates and exposed granite terrain. The Common name, Eucalyptus squamosa, is classified as Vulnerable (VU) by the IUCN, reflecting its naturally restricted geographic distribution and specialised habitat requirements rather than a rapid ongoing decline.

Encouragingly, the population trend is currently assessed as stable, and a substantial portion of the species' known range falls within protected areas such as Girraween National Park in Queensland and Bald Rock National Park in New South Wales, where formal conservation management helps safeguard its granite outcrop habitat. This protected status represents a meaningful conservation achievement, buffering the species from many of the land-use pressures affecting unprotected eucalypt woodlands elsewhere in Australia. Continued monitoring of its granite habitat and surrounding landscape connectivity remains important to maintaining this stable trajectory over the long term.

Eucalyptus squamosa grows on shallow, rocky soils derived from granite outcrops in open woodland and dry sclerophyll forest, primarily within the Girraween and Bald Rock region straddling the Queensland-New South Wales border.