Stout aquatic or littoral annual or perennial, herb, stems to 2 m long. Fl. white, Nov to Dec or Jan to Apr. Weed of lakes, rivers, swamps & drains.
Beard’s Provinces: South-West Province.
IBRA Regions: Swan Coastal Plain, Warren.
IBRA Subregions: Perth, Warren.
Local Government Areas (LGAs): Augusta-Margaret River, Bayswater, Busselton, South Perth, Swan.
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