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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.

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Marsilea exarata A.Braun

Reference
Monatsber.Königl.Preuss.Akad.Wiss.Berlin 11:732 (1870)
Conservation Code
Not threatened
Naturalised Status
Native to Western Australia
Name Status
Current

Rhizomatous, perennial, herb or (fern), 0.01-0.1 m high, aquatic or amphibious; leaflets 4, sporocarp with 2 unequal basal teeth, lower one longer, recurved. Grey alluvial soil or clay. In shallow fresh water, or in mud near temporary waterholes.

Amanda Spooner, Descriptive Catalogue, 29 October 1997
Image

Distribution

IBRA Regions
Carnarvon, Central Ranges, Gascoyne, Gibson Desert, Great Sandy Desert, Little Sandy Desert, Pilbara.
IBRA Subregions
Ashburton, Cape Range, Carnegie, Chichester, Fortescue, Hamersley, Lateritic Plain, Mackay, Mann-Musgrave Block, Roebourne, Rudall, Trainor.
Local Government Areas (LGAs)
Ashburton, East Pilbara, Karratha, Meekatharra, Ngaanyatjarraku, Port Hedland, Wiluna.