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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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Senna occidentalis (L.) Link

Reference
Handbuch 2:140 (1821)
Conservation Code
Not threatened
Naturalised Status
Alien to Western Australia
Name Status
Current

Shrub, 0.15-2.5 m high. Fl. yellow, Jan to Sep. Disturbed areas, creek & river banks.

Amanda Spooner, Descriptive Catalogue, 24 February 1997

Distribution

IBRA Regions
Central Kimberley, Dampierland, Great Sandy Desert, Indian Tropical Islands, Northern Kimberley, Ord Victoria Plain, Pilbara, Victoria Bonaparte.
IBRA Subregions
Fitzroy Trough, Fortescue, Hamersley, Hart, Keep, McLarty, Mitchell, Pindanland, Purnululu, Roebourne.
Local Government Areas (LGAs)
Broome, Christmas Island, Derby-West Kimberley, East Pilbara, Halls Creek, Port Hedland, Wyndham-East Kimberley.