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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.

Cyanothamnus penicillatus (Benth.) Duretto & Heslewood

Reference
Taxon 69:494 (2020)
Conservation Code
Not threatened
Naturalised Status
Native to Western Australia
Name Status
Current

Scientific Description

Shrub, spines absent; branchlets smooth, without distinct raised glands, +/- cylindrical in cross-section, covered in hairs or scales, the hairs stellate (star-shaped). Leaves opposite, compound, 5-8 mm long, with 3 leaflets, each 4-7 mm long, 0.5 mm wide, flat, the margins flat, smooth, without distinct raised glands, covered in hairs or scales, with stellate (star shaped) hairs; stipular excrescences absent. Flowers axillary, solitary; pedicels 1-2 mm long; calyx present, 1.5-2 mm long, smooth, without distinct raised glands, glabrous or covered in hairs or scales, the hairs stellate (star-shaped); corolla white or cream, petals four, 2-4 mm long, imbricate (overlapping), free, hairy on the surfaces or glabrous; stamens twice as many as petals, warty with prominent raised glands, ciliate (with a marginal fringe of hairs). Flowers in October and November. Occurs in the South-West Botanical Province, in the Mallee, Esperance and Geraldton IBRA region(s).

C. Hollister and K.R. Thiele, 14 November 2023

Distribution

IBRA Regions
Avon Wheatbelt, Esperance Plains, Geraldton Sandplains, Mallee.
IBRA Subregions
Fitzgerald, Katanning, Lesueur Sandplain, Merredin, Western Mallee.
Local Government Areas (LGAs)
Bruce Rock, Dandaragan, Dumbleyung, Jerramungup, Kent, Lake Grace, Northam, Ravensthorpe, Wickepin, York.