Selaginella arenicola, commonly called sand spikemoss, is a species (or species complex) of spikemoss, a non-flowering vascular plant, endemic to the U.S. southeast coastal plain in the states of Florida, Georgia, Alabama, and North Carolina.
It occurs in sandy,fire-dependent habitats of the southeastern U.S., including longleaf pine sandhill, Florida scrub, scrubby flatwoods, and pine rockland.
Due to its restricted habitat requirements and limited range, it is considered vulnerable in Georgia and imperiled in North Carolina.