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Service Notice

The Western Australian Herbarium’s collections management system, WAHerb, and DBCA’s flora taxonomic names application, WACensus, have been set to read-only mode since 1 October 2025. Recent taxonomic changes are not currently being reflected in Florabase, herbarium collections, or the census. The project team is now conducting testing of the migrated data, and a further update will be provided by the end of the financial year (1 July). Please reach out to us if you have any questions or concerns.

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Ptilotus carlsonii F.Muell.

Reference
Victorian Naturalist 5:74 (1889)
Conservation Code
Not threatened
Naturalised Status
Native to Western Australia
Name Status
Current

Erect or spreading annual, herb, 0.05-0.3 m high. Fl. yellow-orange, Aug to Oct. Clay, loam. Plains.

Grazyna Paczkowska, Descriptive Catalogue, 6 May 1996
Image

Scientific Description

Annuals, stems several, more or less prostrate, glabrescent, with nodose hairs. Leaves present, 5-100 mm long, 0.5-10 mm wide, glabrescent, with nodose hairs; basal rosette present; cauline leaves alternate. Spikes yellow or orange, ovoid or hemispherical, solitary, with densely arranged flowers. Bracts 6-8 mm long, coloured, hairy, not awned or mucronate, with an obscure midrib. Bracteoles 5.1-6 mm long, coloured, hairy, awned or mucronate, with a prominent midrib. Outer tepals 10.2-11.7 mm long, not entire. Inner tepals 9.8-11.7 mm long, glabrous within. Style 1.7 mm long, curved, obliquely fixed to ovary. Seeds (1.2-)1.3-1.4(-1.5) mm long, glossy, brown. Distribution: South West and Eremaean Botanical Region; IBRA regions: Coolgardie, Murchison, Nullarbor.

R. Davis, 30 April 2019

Distribution

IBRA Regions
Avon Wheatbelt, Coolgardie, Murchison, Nullarbor.
IBRA Subregions
Eastern Goldfield, Eastern Murchison, Mardabilla, Merredin, Nullarbor Plain, Southern Cross.
Local Government Areas (LGAs)
Coolgardie, Dundas, Kalgoorlie-Boulder, Koorda, Menzies, Narembeen, Trayning, Yilgarn.