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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.

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Calothamnus quadrifidus R.Br.
One-sided Bottlebrush

Reference
Sims, Bot.Mag. 37,Tab.1506 (1812)
Conservation Code
Not threatened
Naturalised Status
Mixed (Native in Part of Range, Naturalised Elsewhere)
Name Status
Current

Erect, compact or spreading shrub, (0.5-)0.9-2(-3) m high. Fl. red/white-yellow, Jun to Dec. Wide variety of soils & habitats.

Grazyna Paczkowska, Descriptive Catalogue, 19 December 1995

Distribution

IBRA Regions
Avon Wheatbelt, Carnarvon, Coolgardie, Esperance Plains, Geraldton Sandplains, Jarrah Forest, Mallee, Swan Coastal Plain, Yalgoo.
IBRA Subregions
Dandaragan Plateau, Eastern Mallee, Edel, Fitzgerald, Geraldton Hills, Katanning, Lesueur Sandplain, Merredin, Northern Jarrah Forest, Perth, Recherche, Southern Cross, Southern Jarrah Forest, Western Mallee, Wooramel.
IMCRA Regions
Central West Coast, Leeuwin-Naturaliste, WA South Coast.
Local Government Areas (LGAs)
Albany, Armadale, Augusta Margaret River, Beverley, Boddington, Boyup Brook, Bridgetown-Greenbushes, Brookton, Bruce Rock, Busselton, Cambridge, Canning, Capel, Carnamah, Chapman Valley, Claremont, Cockburn, Coorow, Corrigin, Cottesloe, Cranbrook, Cuballing, Dalwallinu, Dandaragan, Dowerin, Dumbleyung, Dundas, Esperance, Fremantle, Gingin, Gnowangerup, Goomalling, Gosnells, Greater Geraldton, Irwin, Jerramungup, Kalamunda, Kellerberrin, Kent, Kojonup, Kondinin, Koorda, Kulin, Kwinana, Lake Grace, Merredin, Mingenew, Moora, Morawa, Mount Marshall, Mukinbudin, Mundaring, Murray, Nannup, Narembeen, Narrogin, Northam, Northampton, Nungarin, Perenjori, Perth, Pingelly, Plantagenet, Quairading, Ravensthorpe, Rockingham, Serpentine-Jarrahdale, Shark Bay, South Perth, Swan, Tammin, Three Springs, Toodyay, Trayning, Victoria Plains, Wagin, Wandering, Wanneroo, Waroona, West Arthur, Westonia, Wickepin, Williams, Wongan-Ballidu, Woodanilling, Yilgarn, York.