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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Spirodela polyrhiza (L.) Schleid.

Reference: Linnaea 13:391 (1839)
Conservation Code: Not threatened
Naturalised Status: Alien to Western Australia
Name Status: Current

Surface-floating, aquatic annual, herb, thallus (3-)5-8(-10) mm long, flat, opaque, dorsal surface yellow-green, ventral surface purple. Freshwater.

Distribution

IBRA Regions: Darwin Coastal, Victoria Bonaparte.
IBRA Subregions: Keep.
Local Government Areas (LGAs): Wyndham-East Kimberley.