Surania Family, 

 Sweet Bay, 

 Sweet Clover, 

 Sweet Fern, 

 Sweet Flag, 

 Sweet Gum, 

 Sweet Potato, 

 Sweet-scented Grass, 

 Sweet-scented Shrub, 

 Swietenia, 

 Sycamore, 



Symphoricarpus, 



Symplocarpus, 



SYMPLOCINE^;, 



Symplocos, 



Syringa, 



Talinum, 



Tanacetum, 



Tansy, 



Tape-grass, 



Taraxacum, 



Tare, 



Taxodium, 



Tax us, 



Tecoma, 



Telanthera, 



Tephrosia, 



Terminalia, 



Tetragonotheca, 



Tetranthera, 



Teucrium, 



Thalia, 



Thalictrum, 



Thaspium, 



Theophrasta Family, 



THEOPHRASTACE^), 



Thermopsis, 



Thesium, 



Thistle, 



Thorn-Apple, 



Thoroughwort, 



Thuja, 



THYMELEACE^E, 



Thyrsanthus, 



Thysanella, 



Tiarella, 



Tiedemannia, 



Tilia, 



TILIACE^E, 



Tillandsia, 



Timothy, 



Tiniaria, 



Tipularia, 



Titi, 



Toad-Flax, 



Tobacco, 



Tofieldia, 



