Africa, Central and South America, southeastern USA
beach and shoreline
Godfrey, R. K., and J. W. Wooten. 1981. Aquatic and Wetland Plants of Southeastern United States. Vol. II: Dicotyledons. University of Georgia Press, Athens. 933 pp.
Les, D. H., R. R. Haynes, and A. Novelo-Retana. 2009. Plants (Embryophyta) of the Gulf of Mexico, Pp. 261–284 in Felder, D.L. and D.K. Camp (eds.), Gulf of Mexico–Origins, Waters, and Biota. Biodiversity. Texas A&M Press, College Station, Texas.
Harte Research Institute for Gulf of Mexico Studies. 2016. GulfBase: Resource Database for Gulf of Mexico Research, Education, and Management. Texas A&M University-Corpus Christi. World Wide Web electronic publication. http://www.gulfbase.org, 04-04-2020.