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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. The project team is now conducting testing of the migrated data, and a further update will be provided by the end of the financial year (1 July). 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 Saturday, 2 May 2026 +08:00.

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Carrichtera annua (L.) DC.
Ward's Weed

Reference
Mém.Mus.Hist.Nat. 7:244, 250 (1821)
Conservation Code
Not threatened
Naturalised Status
Alien to Western Australia
Name Status
Current

Erect annual, herb, 0.05-0.4 m high. Fl. yellow, Sep to Nov. Semi-arid regions.

Grazyna Paczkowska, Descriptive Catalogue, 18 April 1996

Distribution

IBRA Regions
Avon Wheatbelt, Carnarvon, Central Ranges, Coolgardie, Esperance Plains, Great Victoria Desert, Hampton, Jarrah Forest, Mallee, Murchison, Nullarbor.
IBRA Subregions
Carlisle, Eastern Goldfield, Eastern Mallee, Eastern Murchison, Fitzgerald, Hampton, Katanning, Mann-Musgrave Block, Mardabilla, Merredin, Northern Jarrah Forest, Nullarbor Plain, Recherche, Shield, Southern Cross, Western Mallee, Wooramel.
Local Government Areas (LGAs)
Carnarvon, Coolgardie, Dalwallinu, Dumbleyung, Dundas, Esperance, Kalgoorlie-Boulder, Kellerberrin, Leonora, Menzies, Merredin, Mingenew, Ngaanyatjarraku, Northam, Perenjori, Ravensthorpe, Swan, Trayning, Westonia, Yilgarn.