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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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Mesomelaena stygia (R.Br.) Nees subsp. stygia

Conservation Code
Not threatened
Naturalised Status
Native to Western Australia
Name Status
Current

Tufted perennial, grass-like or herb (sedge), 0.1-0.5 m high, clumps to 0.5 m wide. Fl. brown-black, Mar to Oct. White, yellow, grey, granitic or lateritic sand, lateritic clay.

Grazyna Paczkowska, Descriptive Catalogue, 24 November 1993
Image

Distribution

IBRA Regions
Avon Wheatbelt, Esperance Plains, Geraldton Sandplains, Jarrah Forest, Mallee, Swan Coastal Plain, Warren.
IBRA Subregions
Eastern Mallee, Fitzgerald, Geraldton Hills, Katanning, Merredin, Perth, Recherche, Southern Jarrah Forest, Warren, Western Mallee.
IMCRA Regions
WA South Coast.
Local Government Areas (LGAs)
Albany, Armadale, Boyup Brook, Busselton, Capel, Cranbrook, Denmark, Dundas, Esperance, Gnowangerup, Greater Geraldton, Jerramungup, Kent, Lake Grace, Merredin, Murray, Plantagenet, Ravensthorpe, Serpentine-Jarrahdale, Wagin, West Arthur, Woodanilling.