The Saw Palmetto Serenoa repens is the sole species currently classified in the genus Serenoa. It is a small palm, normally reaching a height of around 2-4 metres. Its trunk is sprawling, and it grows in clumps in sandy coastal lands or as undergrowth in pine woods or hardwood hammocks. It is endemic to the southeastern United States, most commonly along the Atlantic and Gulf coastal plains, but also as far inland as southern Arkansas.