It is an herbaceous, perennial wetland plant whose sprawling stems usually grow flat along mud or a water surface. Floating water-primrose reproduces mainly through plant fragmentation. When a piece of stem breaks off, it develops roots and will grow into a new plant. It also appears to produce viable seeds. It is an invasive species in the region.
Fun Fact It forms dense, fast-growing, floating mats that can displace native aquatic plants and wetland grasses. Mats can also lower dissolved oxygen and pH of the water, reduce water quality for wildlife and increase sedimentation.