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Service Notice

The Western Australian Herbarium’s collections management system and census were set to read-only mode on 1 October 2025. Taxonomic updates published since this time are not being reflected in Florabase, herbarium collections, or Western Australia’s taxonomic names census (Nomos). Conservation listings displayed on Florabase may also be out of date. Please refer to DBCA’s Threatened species and communities webpage for the most recent Threatened and Priority Flora List, noting that recent taxonomic updates are similarly not included. Our database migration is moving to a staging phase. We thank you for your patience as we ensure the integrity of our biodiversity data, develop new workflows, and train staff to use the new systems. Please reach out to us if you have any questions or concerns.

The notice period started at 12:00 pm on Wednesday, 1 October 2025 +08:00 and will end at 12:00 pm on Friday, 1 January 2027 +08:00.

Gossypium sturtianum J.H.Willis
Sturt's Desert Rose

Reference
Victorian Naturalist 64:9 (1947)
Conservation Code
Not threatened
Naturalised Status
Native to Western Australia
Name Status
Current

Shrub, 0.7-2 m high. Fl. blue-purple/pink, May to Oct. Sand, limestone. Coastal plains, stony creek beds.

Amanda Spooner, Descriptive Catalogue, 10 September 1999
Image

Scientific Description

Herb or shrub. Stems glabrous. Leaves 35-75 mm long, 20-40 mm wide, not lobed; margins entire; glabrous; stipules present and persistent to older leaves or present but early deciduous (only visible on youngest leaves), 8-10 mm long. Perianth clearly of two whorls (calyx and corolla), the corolla obvious and prominent. Pedicel present, 8-10 mm long; indumentum present, with stellate hairs. Epicalyx (extra segments or 'bracteoles' immediately below the calyx) present, 6-9 mm long, the lobes fused less than half their length, indumentum present, stellate hairs present. Calyx green, 25-30 mm long, the lobes fused less than half their length, stellate hairs present. Corolla pink, blue or purple, 40-45 mm long, glabrous. Stamens many, united and arising from a staminal tube around the style; filaments present, 1.2-2 mm long; anthers 1-1.1 mm long, indumentum absent (anthers glabrous). Ovary hairs or scales present, simple hairs present, stellate hairs present; style 1, with a lobed or capitate stigma, 19-21 mm long, with one style branches or lobes, mostly glabrous. Flowering time May, June, July, August, September or October. Distribution Botanical Province Eremaean, IBRA Bioregion Pilbara or Carnarvon.

C. Hollister and K.R. Thiele, 11 August 2023

Distribution

IBRA Regions
Carnarvon, Central Ranges, Pilbara.
IBRA Subregions
Cape Range, Hamersley, Mann-Musgrave Block.
IMCRA Regions
Ningaloo.
Local Government Areas (LGAs)
Ashburton, East Pilbara, Exmouth, Ngaanyatjarraku.