List other families
Salicaceae
Casearia flexuosa
Santalaceae
Thesium dollineri
Sapindaceae
sugar maple
Sapotaceae
Chrysophyllum imperiale
Sarraceniaceae
Sarracenia oreophila
Saururaceae
Saururus chinensis
Saxifragaceae
slender woodland star
Scheuchzeriaceae
Rannoch-rush, pod grass
Schisandraceae
large-flowered magnolia vine
Schizaeaceae
Schizaea bifida
Schoepfiaceae
Arjona tuberosa
Scrophulariaceae
shoreline figwort, water figwort, water betony
Selaginellaceae
hidden spikemoss
Smilacaceae
common greenbrier
Solanaceae
Nierembergia scoparia
Sphaerocarpaceae
Texas balloonwort
Stegnospermataceae
Stegnosperma cubense
Stemonaceae
Stemona curtisii
Stilbaceae
Transvaal shellflower bush
Strelitziaceae
giant white bird of paradise, wild banana
Stylidiaceae
Stylidium scariosum
Styracaceae
Halesia carolina