Prunus arabica 
Prunus bucharica 
Prunus nigra 
Prunus pensylvanica 
Prunus pumila 
Prunus spinosissima 
Prunus × yedoensis 
Purple marshlocks 
Purple-flowered raspberry 
Purshia tridentata 
Quince 
Red Chokeberry 
Red Raspberry 
Reeve's Spirea 
Rosa arabica 
Rosa banksiae 
Rosa ecae 
Rosa gallica 
Rosa gigantea 
Rosa gymnocarpa 
Rosa ovczinnikovii 
Rosa pulverulenta 
Rosa rubiginosa 
Rosa woodsii