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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. Due to the rapidly approaching holiday season and associated agency and facility soft closures, along with the substantial work involved in data mapping, cleaning, and verification, the migration to the new collection management software is not expected to occur before 1 March 2026, when a further update will be provided. Please reach out to us if you have any questions or concerns.

The notice period started at 9:45 am on Friday, 12 December 2025 +08:00 and will end at 12:00 pm on Monday, 2 March 2026 +08:00.

Ptilotus nobilis (Lindl.) F.Muell.
Tall Mulla Mulla

Reference
Fragm. (Mueller) 6:227-228 (1869)
Conservation Code
Not threatened
Naturalised Status
Native to Western Australia
Name Status
Current

Annual or perennial (short-lived), herb, 0.3-0.6(-2) m high. Fl. green-white-red, May to Aug. Rocky sandy soils.

Ben Richardson, Descriptive Catalogue, 17 November 2017

Scientific Description

Perennial herbs or annuals, stems several, more or less erect, glabrescent, with nodose or verticillate hairs. Leaves present, 50-150 mm long, 20-60 mm wide, glabrescent or glabrous, with verticillate hairs; basal rosette present; cauline leaves alternate. Spikes green or pink, ovoid or cylindrical, solitary, with densely arranged flowers. Bracts 8-10 mm long. Bracteoles 9-11 mm long. Outer tepals 20-25 mm long. Inner tepals 19-24 mm long, with a basal tuft of hairs on inner face. Style 16.5-20 mm long, sigmoid, obliquely fixed to ovary. Seeds 1.5-1.7 mm long, glossy, brown. Distribution: Eremaean Botanical Region; IBRA regions: Central Ranges.

R. Davis, 8 May 2019

Distribution

IBRA Regions
Central Ranges.
IBRA Subregions
Mann-Musgrave Block.
Local Government Areas (LGAs)
Ngaanyatjarraku.