Submerged aquatic, sometimes mat-forming, free-floating annual or perennial, herb, ultimate segments of the leaves very few; calyx lobes 2; pedicels semi-erect in fruit. Fl. yellow, Apr to Dec. Still pools, ephemeral swamps.
Beard’s Provinces: Eremaean Province, Northern Province, South-West Province.
IBRA Regions: Central Kimberley, Dampierland, Northern Kimberley, Pilbara, Swan Coastal Plain, Tanami, Victoria Bonaparte.
IBRA Subregions: Berkeley, Hamersley, Mitchell, Pentecost, Perth, Pindanland, Tanami P1, Victoria Bonaparte P1.
IMCRA Regions: Groote.
Local Government Areas (LGAs): Armadale, Ashburton, Broome, Derby-West Kimberley, Halls Creek, South Perth, Wanneroo, Wyndham-East Kimberley.
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