Rosy Spiraea 
Rubus ablatus 
Rubus calycinus 
Rubus lloydianus 
Rubus ursinus 
Salad Burnet 
Salmonberry 
Scarlet firethorn 
Sheep's Burr 
shinyleaf spiraea 
Shrubby Cinquefoil 
Siberian Crabapple 
Silverweed cinquefoil 
Sitka mountain-ash 
Slender cinquefoil 
Snowy Mespilus 
Sorbaria 
Sorbus domestica 
Sorbus glabrescens 
Sorbus umbellata 
Southern Dewberry 
Spiny Burnet 
Spiraea crenata 
Spring cinquefoil