Comments: Stylisma pickeringii occurs primarily in dry pine barrens, pine/scrub oak sandhill, xeric sandhill scrub, and sand-prairies. This species includes two varieties: S. pickeringii var. pickeringii, which occurs primarily on the coastal plain in pine barrens and sandhill communities; and S. pickeringii var. pattersonii, which occurs in sand-prairies and sandy, open ground in the western part of the species range. This species can also occur in somewhat disturbed, sandy soils at roadsides, in clearings, along railroad tracks, and along firebreaks.