Silene palaestina 
Silene reinwardtii 
Silene Rosseggiante 
Silene scabriflora 
Silene schimperiana 
Silene spergulifolia 
Silene stenobotrys 
Silene subconica 
Silene subintegra 
Silene tridentata 
Silene villosa 
Silene vivianii 
Silene_bellidifolia 
Silver Cholla 
Silver torch 
Slender Knotweed 
Slender Pitcher-Plant 
Slenderleaf iceplant 
Slenderleaf Sundew 
Small devil's-tongue 
Smooth Trailing Four O'Clock 
Snow Buckwheat 
Snow-in-Summer 
Snowball Cactus