''Heteranthera reniformis'' common name kidneyleaf mud-plantain, and mud plantain; is a plant found in North America. It is listed as a special concern and believed extirpated in Connecticut. It listed as endangered in Illinois and Ohio.

Native American ethnobotany

The Cherokee apply a hot poultice of the root to inflamed wounds and sores.Hamel, Paul B. and Mary U. Chiltoskey, 1975, Cherokee Plants and Their Uses -- A 400 Year History, Sylva, N.C. Herald Publishing Co., page 45

References

Plants used in traditional Native American medicine Pontederiaceae {{Commelinales-stub