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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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Cyperus gymnocaulos Steud.
Spiny Flat-sedge

Reference
Syn.Pl.Glumac. 2:12 (1855)
Conservation Code
Not threatened
Naturalised Status
Native to Western Australia
Name Status
Current

Shortly rhizomatous, tufted perennial, grass-like or herb (sedge), 0.35-1 m high. Fl. brown, Jul to Dec or Jan or Mar. Grey or red sand, clay, swamps, along watercourses.

Grazyna Paczkowska, Descriptive Catalogue, 4 November 1993

Distribution

IBRA Regions
Avon Wheatbelt, Central Ranges, Geraldton Sandplains, Jarrah Forest, Murchison, Swan Coastal Plain, Warren, Yalgoo.
IBRA Subregions
Dandaragan Plateau, Eastern Murchison, Geraldton Hills, Katanning, Lesueur Sandplain, Mann-Musgrave Block, Merredin, Northern Jarrah Forest, Perth, Tallering, Warren, Western Murchison.
IMCRA Regions
Central West Coast.
Local Government Areas (LGAs)
Augusta Margaret River, Carnamah, Chapman Valley, Chittering, Claremont, Coorow, Dandaragan, Dumbleyung, Gingin, Greater Geraldton, Leonora, Meekatharra, Melville, Mingenew, Moora, Morawa, Murchison, Ngaanyatjarraku, Northam, Northampton, Perth, Swan, Toodyay, Wagin, Yalgoo, York.