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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 substantial work involved in data mapping, cleaning, and verification, the migration to the new collection management software is not expected to occur before 1 May 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 Saturday, 2 May 2026 +08:00.

Rhizanthella gardneri R.S.Rogers
Western Underground Orchid

Reference
J.Roy.Soc.Western Australia 15:1 (1930)
Conservation Code
Threatened
A taxon name retains its ‘Threatened’ status until a new name has been officially endorsed and appears in the Gazettal Notice.
Naturalised Status
Native to Western Australia
Name Status
Current

Tuberous, perennial, herb, flowers develop under the surface and break through as they mature; flowers c. 6 mm long, 5 mm wide. Fl. pink-purple, May to Jul. Sand. Grows in association with Melaleuca uncinata.

Amanda Spooner, Descriptive Catalogue, 26 May 2003
Image

Distribution

IBRA Regions
Avon Wheatbelt.
IBRA Subregions
Katanning, Merredin.
Local Government Areas (LGAs)
Bruce Rock, Corrigin.