The mud plantain or blue mud-plantain is a member of the Pontederiaceae (Pickerelweed Family). It is not native to Florida. It is rarely found growing in the ditches of Orange, Hillsborough, Palm Beach and Miami-Dade counties (Wunderlin, 2003). It is native to the central United States south to Mexico. It is distinguished from other species of Heteranthera by its single-flowered spathe. The flower is white or blue. Heteranthera limosa is listed as a species of special concern in Kentucky, and as a threatened species in Minnesota and Tennessee.
These photographs were taken in Okeechobee County by Mark Clemons.