Florida water cress
Rorippa floridana is found only in Florida. (It’s endemic.) It is one of five water cresses in the state; one of about 30 in the U.S. and Canada (Kartesz, 1999). Florida water cress is frequently found growing in spring runs and blackwater swamps from the peninsula to the central panhandle to north central Florida (Wunderlin, 2003). It blooms in the spring.