Nature conservation

Threatened species

Biconvex Paperbark - 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: Melaleuca biconvexa
Conservation status in NSW: Vulnerable
Commonwealth status: Vulnerable
Gazetted date: 18 Sep 1998
Profile last updated: 17 Aug 2018


Biconvex Paperbark is a shrub or small tree, usually up to 10 m tall, though occasionally as high as 20 m. The bark is that of a typical paperbark. The leaves are small, to 18 mm long and 4 mm wide; each leaf has a centre-vein in a groove and the leaf blade curves upwards on either side of this centre-vein. Leaf placement is distinctive, with each pair of leaves emerging at right angles from the branch. Each pair is offset at right angles to the previous pair so the branch has a squarish appearance when looked at 'end-on'. This species' white flowers are usually clustered in dense heads and the fruit is urn-shaped and 3 - 5 mm in diameter.


Biconvex Paperbark is only found in NSW, with scattered and dispersed populations found in the Jervis Bay area in the south and the Gosford-Wyong area in the north.

Habitat and ecology

  • Biconvex Paperbark generally grows in damp places, often near streams or low-lying areas on alluvial soils of low slopes or sheltered aspects.
  • Flowering occurs over just 3-4 weeks in September and October.
  • Resprouts following fire.

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
NSW North CoastKaruah Manning Known None
NSW North CoastMacleay Hastings Known South of Kempsey
Other StateJervis Bay Territory Predicted None
Sydney BasinCumberland Known None
Sydney BasinHunter Predicted None
Sydney BasinJervis Known None
Sydney BasinPittwater Known None
Sydney BasinWyong Known None
Sydney BasinYengo Known None