Nature conservation

Threatened species

Polycarpaea spirostylis subsp. glabra - 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: Polycarpaea spirostylis subsp. glabra
Conservation status in NSW: Endangered
Commonwealth status: Not listed
Profile last updated: 07 Jan 2019


Small annual herb, hairless and often stiff and much-branched. Plants can exhibit a variety of forms, from few-stemmed and slender, to low and bushy. Leaves opposite, linear, 4-10 mm long, with tissue-like stipules at the base. Flowers tubular with pink lobes which are sometimes deeply divided. The flower sepals have a midrib accentuated by red or pink. Fruit capsule about 3 mm long.


Restricted to the NSW far west, from Hawker’s Gate Road west of Milparinka and recently recorded for the far south-western plains. Also found in Qld, NT, SA and WA. It is a rarely collected taxon and not common within its very restricted range.

Habitat and ecology

  • Recorded from a dune slope on a sandplain with Mulga vegetation and from a sandy duplex soil supporting Sturt’s Pigface Gunniopsis quadrifida.
  • Other recorded habitats include a sand dune, gravely scree slope, rocky areas, and eucalypt woodland with grassy understorey on granite-derived gravel.
  • Flowers mainly in spring but also throughout the year.
  • Often found on heavily mineralised soils and considered to be an indicator of the presence of silver and lead due to its occurrence on silver-lead lodes. The species ability to grow on silver-lead lodes is due to its low uptake of minerals in heavily mineralised soils.
  • Recorded growing in a dense clump below a rock slab, in the wetter area beside a creek.

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
Channel CountrySturt Stony Desert Known None
Simpson Strzelecki DunefieldsStrzelecki Desert Predicted None