"Serenoa repens (W. Bartram) Small". Germplasm Resources Information Network. United States Department of Agriculture. 1997-05-22. Archived from the original on 8 May 2009. Retrieved 2010-04-12.
"Serenoa repens (W. Bartram) Small". Germplasm Resources Information Network. United States Department of Agriculture. 1997-05-22. Archived from the original on 8 May 2009. Retrieved 2010-04-12.