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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. The project team is now conducting testing of the migrated data, and a further update will be provided by the end of the financial year (1 July). 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 Wednesday, 1 July 2026 +08:00.

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Lolium multiflorum Lam.
Italian Ryegrass

Reference
Fl.Franç. 3:621 (1779)
Conservation Code
Not threatened
Naturalised Status
Alien to Western Australia
Name Status
Current

Short-lived perennial or annual, grass-like or herb, 0.7-1.2 m high. Fl. green, Oct to Dec. Clay. Winter-wet flats.

Grazyna Paczkowska, Descriptive Catalogue, 24 November 1993

Distribution

IBRA Regions
Gascoyne, Geraldton Sandplains, Jarrah Forest, Swan Coastal Plain, Warren.
IBRA Subregions
Ashburton, Augustus, Dandaragan Plateau, Lesueur Sandplain, Northern Jarrah Forest, Perth, Warren.
IMCRA Regions
Abrolhos Islands.
Local Government Areas (LGAs)
Augusta Margaret River, Bunbury, Canning, Carnamah, Dandaragan, Denmark, Gingin, Gosnells, Greater Geraldton, Joondalup, Kalamunda, Mandurah, Meekatharra, Murray, Perth, Serpentine-Jarrahdale, Upper Gascoyne.