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Service Notice

The Western Australian Herbarium’s collections management system, WAHerb, and DBCA’s taxonomic names application, WACensus, have been set to read-only mode since 1 October 2025. Recent taxonomic changes are not reflected in Florabase, herbarium collections, or in the census. We are hoping to be able to reinstate services around December 15; we will provide an update at that time.

The notice period started at 9:00 am on Wednesday, 1 October 2025 +08:00 and will end at 12:00 pm on Monday, 15 December 2025 +08:00.

Ptilotus trichocephalus Benl

Reference
Mitt.Bot.Staatssamml.München 29:498-500 (1990)
Conservation Code
Priority Four
Naturalised Status
Native to Western Australia
Name Status
Current

Prostrate, spreading perennial, herb. Fl. white, Sep. Sandy soils. Colluvial plains.

Amanda Spooner, Descriptive Catalogue, 31 August 1999
Image

Scientific Description

Annuals, stems several, more or less prostrate, glabrescent, with verticillate hairs. Leaves present, 5-60 mm long, 2-27 mm wide, glabrescent, with verticillate hairs; basal rosette present; cauline leaves alternate. Spikes green, ovoid, cylindrical or hemispherical, solitary or clustered, with densely arranged flowers. Bracts 8-11 mm long, coloured, hairy, not awned or mucronate, with an obscure midrib. Bracteoles 13-19 mm long, colourless, hairy, awned or mucronate, with a prominent midrib. Outer tepals 44-62 mm long, entire. Inner tepals 22-42 mm long, glabrous within. Style 1.1 mm long, curved, obliquely fixed to ovary. Seeds 1.9-2.1 mm long, dull, brown. Distribution: Eremaean Botanical Region; IBRA regions: Gascoyne, Pilbara.

R. Davis, 30 April 2019

Distribution

IBRA Regions
Gascoyne, Pilbara.
IBRA Subregions
Ashburton, Augustus, Hamersley.
Local Government Areas (LGAs)
Ashburton, Meekatharra, Upper Gascoyne.