''Hydrocotyle prolifera'', commonly called whorled marshpennywort , is a species of

flowering plant Flowering plants are plants that bear flowers and fruits, and form the clade Angiospermae (), commonly called angiosperms. They include all forbs (flowering plants without a woody stem), grasses and grass-like plants, a vast majority of ...

in the ginseng family (

Araliaceae The Araliaceae are a family of flowering plants composed of about 43 genera and around 1500 species consisting of primarily woody plants and some herbaceous plants. The morphology of Araliaceae varies widely, but it is predominantly distinguisha ...

). It is native to North America and South America, where it is widespread. In the United States, it is largely restricted to the southeastern and southwestern regions. Its natural habitat is in swamp forests, or in pools of standing water. ''Hydrocotyle prolifera'' is an herbaceous perennial that grows as an emergent aquatic plant. It flowers from May through August. It can be distinguished from the similar looking ''

Hydrocotyle verticillata ''Hydrocotyle verticillata'', also known as whorled pennywort, whorled marshpennywort or shield pennywort, is a flowering plant found in South and North America and the West Indies. Its creeping habit and unusual leaves give it its common names ...

'' by its pedicellate flowers and fruits, in contrast to the sessile of subsessile flowers and fruits of ''H. verticillata''.

References

{{Taxonbar, from=Q17139553 prolifera Flora of Northern America