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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 substantial work involved in data mapping, cleaning, and verification, the migration to the new collection management software is not expected to occur before 1 May 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 Saturday, 2 May 2026 +08:00.

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Bidens pilosa L.
Cobbler's Pegs

Reference
Sp.Pl. [Linnaeus] 2:832 (1753)
Conservation Code
Not threatened
Naturalised Status
Alien to Western Australia
Name Status
Current

Erect annual, herb, 0.2-1.5(-2.5) m high. Fl. yellow, Feb to Jun. Peaty clay, sandy loam, alluvium. Along drainage lines, lateritic screes.

Amanda Spooner, Descriptive Catalogue, 21 April 1997
Image

Distribution

IBRA Regions
Central Kimberley, Dampierland, Geraldton Sandplains, Indian Tropical Islands, Jarrah Forest, Northern Kimberley, Ord Victoria Plain, Pilbara, Swan Coastal Plain, Victoria Bonaparte.
IBRA Subregions
Chichester, Fitzroy Trough, Geraldton Hills, Keep, Mitchell, Mount Eliza, Northern Jarrah Forest, Pentecost, Perth, Purnululu.
IMCRA Regions
Kimberley.
Local Government Areas (LGAs)
Chittering, Christmas Island, Derby-West Kimberley, East Pilbara, Halls Creek, Melville, Mundaring, Northampton, Perth, Stirling, Swan, Wyndham-East Kimberley.