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Service Notice

The Western Australian Herbarium’s collections management system, WAHerb, and DBCA’s taxonomic names application, WACensus, have been set to read-only mode since 1 October 2025. Recent taxonomic changes are not reflected in Florabase, herbarium collections, or in the census. We are hoping to be able to reinstate services around December 15; we will provide an update at that time.

The notice period started at 9:00 am on Wednesday, 1 October 2025 +08:00 and will end at 12:00 pm on Monday, 15 December 2025 +08:00.

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Isoetes australis S.Williams

Reference
Proc.Roy.Soc.Edinburgh, B 62:1-8 (1943)
Conservation Code
Not threatened
Naturalised Status
Native to Western Australia
Name Status
Current

Cormous, perennial, herb or (fern ally), 0.01-0.07 m high, brown scale leaves absent; leaves distichous; sporangia naked; megaspores smooth. Sand or loam. Submerged in rock pools on granitic outcrops.

Amanda Spooner, Descriptive Catalogue, 9 August 1999

Distribution

IBRA Regions
Avon Wheatbelt, Coolgardie, Esperance Plains, Jarrah Forest, Mallee, Murchison, Warren, Yalgoo.
IBRA Subregions
Eastern Goldfield, Eastern Mallee, Eastern Murchison, Fitzgerald, Katanning, Mardabilla, Merredin, Northern Jarrah Forest, Recherche, Southern Cross, Tallering, Warren, Western Mallee, Western Murchison.
IMCRA Regions
WA South Coast.
Local Government Areas (LGAs)
Albany, Armadale, Bruce Rock, Coolgardie, Dalwallinu, Dundas, Esperance, Kalamunda, Kondinin, Koorda, Kulin, Lake Grace, Manjimup, Menzies, Merredin, Mount Magnet, Murchison, Narembeen, Nungarin, Perenjori, Pingelly, Serpentine-Jarrahdale, Trayning, Westonia, Wongan-Ballidu, Yalgoo, Yilgarn.