Nymphoides thunbergiana is a semi-deciduous, fast-growing, floating plant with rhizomes and long, slender stems ending in almost circular leaves floating flat on the surface of the water. The flowers are formed above the floating leaves with 20-40 mm long stalks and has abundant, small, yellow fluffy flowers at the edge of each leaf. It is also suitable for a very small pond. In its natural habitat the plant may be subject to periods where the water may dry up, in this case it forms roots at the nodes to help it survive.
It makes a useful addition to ornamental ponds and dams, especially for gardeners who may be searching for indigenous alternatives to exotic (and now often outlawed) water plants. Plant in sun or light shade.