Puya glomerifera 
Puya goudotiana 
Quaking-grass 
Rabbitfoot Grass 
Racinaea tetrantha 
Rapatea paludosa 
Rattlesnake Mannagrass 
Ravennagrass 
Red-anther Wallaby Grass 
Red-fruit saw-sedge 
Reed Canary Grass 
Rendle's meadow foxtail 
Rhodes grass 
Rhynchospora nervosa 
Round-headed Clubrush 
Rye 
Sacred Bali Bamboo 
Sallow Sedge 
Saltmarsh Cordgrass 
Scale Shedder 
Scarlet Star 
Schoenus nigricans 
Scirpus litoralis 
Sclerodactylon