elliptic, oblanceolate, obovate, spatulate
forb, shrub, floating aquatic, aquatic
May - October
0.2 - 1.0
Matt forming with large 5 (6) petaled yellow flowers. Long shaggy hair on stems. Lower stem creeping and rooting at the nodes. Capsules 1-2.5 cm long and hairy.
Clonal expansion is the primary means of reproduction for the species. Stem fragments are spread by animals, humans, and water currents. Most populations flower, but sexual reproduction is likely of lesser importance than vegetative reproduction.
An exotic that often forms large floating mats in still water.
Slow streams, pools, and marshes, wet places alongside ponds, ditches.