Nature conservation

Threatened species

Spiny Everlasting - profile

Indicative distribution

   Loading map...
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: Acanthocladium dockeri
Conservation status in NSW: Extinct
Commonwealth status: Critically Endangered
Profile last updated: 07 Sep 2017


Acanthocladium is a genus of the daisy family Asteraceae represented by a single species, the Spiny Everlasting Acanthocladium dockeri.  It is a low shrub (about half a metre in height) with spindly branches that end in a ‘tick-shaped’ (ü) spine. The shrub is whitish grey in colour due to the fine pale-grey felt that covers the small oval-shaped leaves and the branches. The flowers are small and yellow, with grey felted bracts and lack the ring of showy ray petals that is characteristic of many daisy species. Spiny Everlasting has a well developed, woody perennial root system that suckers readily.


The only NSW record of Spiny Everlasting is from the Burke and Wills Expedition of 1860, collected near Menindee near the Darling River (probably in the vicinity of Lake Pamamaroo). It was then collected near Overland Corner in South Australia in 1910 but was then thought to be extinct. In 1999 the species was rediscovered in the Mid-North of South Australia, and is currently known from several scattered populations.

Habitat and ecology

  • In NSW knowledge of the habitat of the species is limited to notes included with the herbarium specimens (“low sand hills near Darling River”). Possible habitat inlcudes black box riverine communities.
  • In South Australia, the habitat varies from low hills covered with Scented Mat-rush (Lomandra effusa), Spear Grasses (Austrostipa spp.) and Wallaby Grasses (Rytidosperma spp.), to shrubland of Sweet Bursaria (Bursaria spinosa subsp. spinosa), Umbrella Bush (Acacia ligulata) and Mealy Saltbush (Rhagodia parabolica) on sandy loam.
  • Observations of the SA populations suggests reproduction is via root suckering and a poor survival rate for seedlings.


Recovery strategies

Activities to assist this species

Information sources

IBRA Bioregion IBRA Subregion Known or predicted Geographic restrictions region
Other StateSA Known None