| Romulea rosea |
Dwarf Star-Crocus |
| Roncus lubricus |
False Scorpion |
| Rosa |
Rose; |
| Rosa banksiae |
|
| Rosa bracteata |
|
| Rosa chinensis |
|
| Rosa laevigata |
|
| Rosa multiflora |
Many-Flowered Rose; Provence Rose |
| Rosa roxburghii |
|
| Rosa rubiginosa |
Sweetbriar [rose] |
| Rosa setigera |
Prarie Rose |
| Rosulabryum rubens |
|
| Rubus cardiophyllus |
Round-Fruited Bramble; |
| Rubus idaeus |
European Rasberry |
| Rubus pinnatus |
Blackberry; Cape Bramble |
| Rubus rosifolius |
Raspberry; Rose-Leaved Bramble |
| Rumex acetosa |
Comon Sorrel |
| Rumex acetosella |
Sheep's Sorrel |
| Rumex crispus |
Curly Dock; Curled Dock |
| Rumex hypogaeus |
Southern Threecornerjack; Triple Gee; Double Gee |
| Rumex patientia |
|
| Rumex pulcher |
Fiddle Dock |
| Rumex vesicarius |
|
| Runcinia grammica |
Pincer-Ambush Crab Spider |
| Russelia equisetiformis |
|
| Ruta graveolens |
Common Rue; Rue |
| Saccharum officinarum |
Sugar Cane |
| Sagina apetala |
Annual Pearlwort |
| Saissetia coffeae |
Brown Scale; Hemispherical Scale |
| Saissetia somereni |
Black Scale |
