Suksdorf's silene 
Sulphur Cactus 
Sulphur Flower Buckwheat 
Suwwad 
Sweet William 
Sweet William Catchfly 
Syrian Rhubarb 
Talinum fruticosum 
Talinum portulacifolium 
Tall woolly buckwheat 
Tamarix aphylla 
Tamarix canariensis 
Tamarix passerinoides 
Tamarix tetragyna 
Tamarix tetrandra 
Tangled lignum 
Taray 
Teddy bear cholla 
Telephium imperati 
Telephium sphaerospermum 
Thick-head Glasswort 
Thread-leaved sundew 
Three-spotted Pink 
Threeleaf lewisia