Nature conservation

Threatened species

Jillaga Ash - profile

Indicative distribution


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Key:
known
predicted
The areas shown in pink and/purple are the sub-regions where the species or community is known or predicted to occur. They may not occur thoughout the sub-region but may be restricted to certain areas. ( click here to see geographic restrictions). The information presented in this map is only indicative and may contain errors and omissions.
Scientific name: Eucalyptus stenostoma
Conservation status in NSW: Endangered
Commonwealth status: Endangered
Gazetted date: 24 May 2024
Profile last updated: 12 Mar 2026

Description

Jillaga Ash (Eucalyptus stenostoma) is a small to medium sized tree reaching up to 25 metres in height. It has persistent, rough grey bark on the lower section of the trunk, and smooth, yellow or creamy white upper bark. Juvenile leaves are a grey-green colour, oval to lance shaped and grow up to 18 cm long and 6 cm wide. Mature leaves are glossy green, lance to sickle shaped and grow up to 19 cm long and 3 cm wide. Flowering occurs in September to December. The species produces white flowers with buds in clusters of 11 to 20 or more. The fruit is globular shaped and has a narrow opening.


Distribution

Eucalyptus stenostoma is restricted to the south east corner and the south eastern highland regions of NSW. The majority of records are in Wadbilliga and Deua National Parks within the Bega Valley, Eurobodalla and Snowy Monaro Regional local government areas. The species also occurs in South East Forest National Park and Dampier State Forest, and a small number of records are on private land. The number of mature individuals is currently unknown but is estimated to be more than 5000.


Habitat and ecology

  • Eucalyptus stenostoma occurs in dry forests and woodlands. It grows on rhyolite outcrops, hornfels, sandstone, mudstone, slate and granitoid rocks.
  • It occurs on very steep slopes, rocky hill tops and ridgelines with shallow soils. It often has a characteristic downhill lean.
  • It often forms pure, even-aged stands where it is locally dominant, but can also grow near other Eucalypt species such as Silvertop Ash (Eucalyptus sieberi).
  • The smooth upper bark often has fine zig-zag scribbles caused by burrowing moth larvae. Bark is shed each year in ribbons.
  • The species is killed by severe fire and is an obligate seeder.
  • The longevity of adult plants is unknown but is estimated to be between 300 - 400 years based on other similar species.

Regional distribution and habitat

Click on a region below to view detailed distribution, habitat and vegetation information.


Threats

Recovery strategies

Activities to assist this species

IBRA Bioregion IBRA Subregion Known or predicted Geographic restrictions region
South East CornerSouth East Coastal Ranges Known North of the Bega River
South Eastern HighlandsKybeyan-Gourock Known North of the Bega River