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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 rapidly approaching holiday season and associated agency and facility soft closures, along with 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 March 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 Monday, 2 March 2026 +08:00.

Megathyrsus maximus (Jacq.) B.K.Simon & S.W.L.Jacobs

Reference
Austrobaileya 6:572 (2003)
Conservation Code
Not threatened
Naturalised Status
Alien to Western Australia
Name Status
Current

Upright, tussocky herb (grass), to 3 m high. Black soil, red levee soil, white sand, sandstone. Sand dunes, near creeks, in dune valleys.

Amanda Spooner, Descriptive Catalogue, 4 May 2004

Distribution

IBRA Regions
Dampierland, Jarrah Forest, Northern Kimberley, Swan Coastal Plain, Victoria Bonaparte.
IBRA Subregions
Dandaragan Plateau, Fitzroy Trough, Keep, Mitchell, Perth, Pindanland, Southern Jarrah Forest.
IMCRA Regions
WA South Coast.
Local Government Areas (LGAs)
Albany, Broome, Canning, Cockburn, Derby-West Kimberley, Gingin, Plantagenet, Wyndham-East Kimberley.