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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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Helianthus annuus L.
Sunflower

Reference
Sp.Pl. [Linnaeus] 2:904-905 (1753)
Conservation Code
Not threatened
Naturalised Status
Alien to Western Australia
Name Status
Current

Erect, woody annual, herb, (0.3-)0.6-3 m high. Fl. yellow, Aug to Dec or Jan to Apr. Weed of habitation, roadsides & waste land in dry places.

Amanda Spooner, Descriptive Catalogue, 14 May 1997
Image

Distribution

IBRA Regions
Avon Wheatbelt, Carnarvon, Coolgardie, Esperance Plains, Geraldton Sandplains, Swan Coastal Plain.
IBRA Subregions
Eastern Goldfield, Geraldton Hills, Katanning, Lesueur Sandplain, Perth, Recherche, Wooramel.
IMCRA Regions
Central West Coast, Leeuwin-Naturaliste.
Local Government Areas (LGAs)
Bayswater, Bunbury, Canning, Cockburn, Coolgardie, Dandaragan, Esperance, Fremantle, Greater Geraldton, Kalgoorlie-Boulder, Northampton, Perth, Shark Bay, Toodyay.