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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.

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Ptilotus declinatus Nees
Curved Mulla Mulla

Reference
Lehm., Pl.Preiss. [J.G.C.Lehmann] 1:631 (1845)
Conservation Code
Not threatened
Naturalised Status
Native to Western Australia
Name Status
Current

Prostrate or ascending perennial, herb, 0.03-0.2 m high. Fl. pink, Sep to Dec.

Amanda Spooner, Descriptive Catalogue, 17 December 1999
Image

Scientific Description

Perennial herbs, stems several, more or less prostrate, glabrescent, with nodose hairs. Leaves present, 3-55 mm long, 1-5 mm wide, glabrescent, with nodose hairs; basal rosette present; cauline leaves alternate. Spikes pink or magenta, ovoid, hemispherical or spherical, solitary, with densely arranged flowers. Bracts 7.5 mm long, colourless, hairy, not awned or mucronate, with an obscure midrib. Bracteoles 6.5-10.4 mm long, colourless, hairy, not awned or mucronate, with a prominent midrib. Outer tepals 15-20(-21) mm long, not entire. Inner tepals 14-19(-20.5) mm long, glabrous within. Style 4.5-6 mm long, curved, obliquely fixed to ovary. Seeds 1.6-1.8 mm long, glossy, brown. Distribution: South West Botanical Region; IBRA regions: Geraldton Sandplain, Swan Coastal Plain, Avon Whealtbelt, Jarrah Forest.

R. Davis, 30 April 2019

Distribution

IBRA Regions
Avon Wheatbelt, Geraldton Sandplains, Jarrah Forest, Swan Coastal Plain.
IBRA Subregions
Dandaragan Plateau, Geraldton Hills, Katanning, Lesueur Sandplain, Merredin, Northern Jarrah Forest, Perth, Southern Jarrah Forest.
Local Government Areas (LGAs)
Beverley, Boddington, Boyup Brook, Broomehill-Tambellup, Canning, Chapman Valley, Chittering, Cuballing, Dandaragan, Dowerin, Goomalling, Gosnells, Greater Geraldton, Kalamunda, Katanning, Kellerberrin, Kojonup, Moora, Mundaring, Murray, Narrogin, Northam, Northampton, Pingelly, Quairading, Swan, Tammin, Toodyay, Victoria Plains, Wagin, West Arthur, Wickepin, Williams, Wongan-Ballidu, Woodanilling, York.