Solidago canadensis
Canadian Goldenrod
Solidago gigantea
Early Goldenrod
Solidago virgaurea
Goldenrod
Sonchus arvensis
Perennial Sow-thistle
Sonchus asper
Prickly Sow-thistle
Sonchus oleraceus
Smooth Sow-thistle
Sorbus leyana
Ley's Whitebeam
Sphagneticola trilobata
Bay Biscayne Creeping-oxeye
Stapelia variegata
Sternbergia lutea
Winter Daffodil
Stylosanthes guianensis
Stylo
Symphyotrichum lanceolatum
Narrow-leaved Michaelmas-daisy
Tanacetum vulgare
Tansy
Taraxacum agg.
Dandelion
Taraxacum britannicum
Taraxacum falcatum
Dandelion
Taraxacum palustre
Taraxacum Section Erythrosperma
Dandelion
Taraxacum Section Hamata
Dandelion
Taraxacum subnaevosum
Tephroseris integrifolia
South Stack Fleawort
Teucrium scorodonia
Wood Sage
Thalictrum flavum
Common Meadow-rue
Thunbergia mysorensis
Mysore Trumpetvine