Wet sand/mud at shoreline of dredge spoil island. See Witsell, Theo and Shepherd, William M. (1998) "Rediscovery of Marsilea vestita subsp. vestita in Pulaski County, Arkansas After 162
Years," Journal of the Arkansas Academy of Science: Vol. 52 , Article 26. https://scholarworks.uark.edu/cgi/viewcontent.cgi?article=1796&context=jaas