Rhizomatous, perennial, herb or (fern), 0.03-0.2 m high, aquatic or amphibious; leaflets 4, narrow, 7-20 mm long; sporocarp with single truncate basal tooth. Fl. May or Aug. Silty clay loam. In swamps or in mud or sand of drying pools.
Beard’s Provinces: Eremaean Province, Northern Province, South-West Province.
IBRA Regions: Avon Wheatbelt, Central Kimberley, Gascoyne, Northern Kimberley, Pilbara, Victoria Bonaparte.
IBRA Subregions: Avon Wheatbelt P1, Berkeley, Carnegie, Chichester, Mitchell, Pentecost, Victoria Bonaparte P1.
Local Government Areas (LGAs): Ashburton, Derby-West Kimberley, Mingenew, Wiluna, Wyndham-East Kimberley.
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Western Australian Herbarium (1998–). FloraBase—the Western Australian Flora. Department of Biodiversity, Conservation and Attractions. https://florabase.dpaw.wa.gov.au/