Nature conservation

Threatened species

Onion Cedar - profile

Indicative distribution

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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: Owenia cepiodora
Conservation status in NSW: Vulnerable
Commonwealth status: Vulnerable
Profile last updated: 13 Dec 2018


Onion Cedar is a tall evergreen tree, up to 30 m, with a dense glossy dark-green crown. Its bark is dark brown with vertical fissures. If the bark is cut, a pink-red underbark is exposed, and the tree exudes a red sap with a strong onion odour. The leaves are composed of 13 – 19 glossy dark green leaflets 10 – 15 cm long. Flowers are white, in clusters at the ends of branchlets. The globular red fruit are 15 – 20 mm wide, with white pulpy flesh surrounding a stone with one or two seeds. The timber resembles that of Red Cedar but has a characteristic onion odour.


North from the Richmond River in north-east NSW extending just across the border into Queensland.

Habitat and ecology

  • Subtropical and dry rainforest on or near soils derived from basalt.

Regional distribution and habitat

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


Recovery strategies

Activities to assist this species

Information sources

IBRA Bioregion IBRA Subregion Known or predicted Geographic restrictions region
South Eastern QueenslandBurringbar-Conondale Ranges Known None
South Eastern QueenslandScenic Rim Known None
South Eastern QueenslandSunshine Coast-Gold Coast Lowlands Predicted None
South Eastern QueenslandWoodenbong Known East of Bonalbo