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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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Pterostylis dilatata A.S.George
Robust Snail Orchid

Reference
Nuytsia 5:61 (1984)
Conservation Code
Not threatened
Naturalised Status
Native to Western Australia
Name Status
Current

Tuberous, perennial, herb, 0.05-0.15 m high. Fl. green-white, May to Aug. Sandy loam.

Grazyna Paczkowska, Descriptive Catalogue, 21 April 1994
Image
Image

Distribution

IBRA Regions
Avon Wheatbelt, Esperance Plains, Geraldton Sandplains, Jarrah Forest, Mallee, Swan Coastal Plain.
IBRA Subregions
Dandaragan Plateau, Eastern Mallee, Fitzgerald, Katanning, Lesueur Sandplain, Merredin, Northern Jarrah Forest, Perth, Recherche, Southern Jarrah Forest, Western Mallee.
Local Government Areas (LGAs)
Albany, Canning, Coorow, Corrigin, Cranbrook, Dandaragan, Dowerin, Dumbleyung, Dundas, Esperance, Gingin, Kulin, Lake Grace, Merredin, Plantagenet, Serpentine-Jarrahdale, Wanneroo, Wongan-Ballidu, York.