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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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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.