| Termen/ Term | Nr. apariții/ No. occurrences |
| RODUL PAMINTULUI | 3 |
| ROGOZ | 39 |
| ROGOZ INCURBAT | 1 |
| ROIBA | 1 |
| ROINITA | 4 |
| ROMAN | 1 |
| ROMANITA DE CIMP | 1 |
| ROMANITA DE MUNTE | 4 |
| ROMANITA NEMIROSITOARE | 4 |
| ROMANITA PUTUROASA | 2 |
| ROSIOARA | 3 |
| ROSMARIN | 1 |
| ROSMARIN DE MUNTE | 1 |
| ROSTOGOL | 4 |
| ROSTOGOL BANATEAN | 1 |
| ROSTOPASCA | 8 |
| ROSTRU | 1 |
| ROTUNGIOARA | 6 |
| ROTUNGIOARE | 1 |
| ROTUNJOARE | 1 |
| ROUA CERULUI | 8 |
| ROURICA | 1 |
| ROZA | 1 |
| ROZETA | 3 |
| RUG DE MURE | 1 |
| RUGI | 1 |
| RUGINA | 5 |
| RUGINARE | 1 |
| RUGINARE TRIFIDA | 1 |
| RUGINARIE | 1 |
| RUGINITA | 3 |
| RUGUL FAGETELOR | 1 |
| RUIN | 2 |
| RUJA | 1 |
| RUJINA | 1 |
| RUMENIOARA | 1 |
| RUPT | 8 |
| RUPTA | 5 |
| RUSCUTA | 5 |
| RUSCUTA DE PRIMAVARA | 21 |
| RUSCUTA PRIMAVARATICA | 4 |
| RUSINEA FETEI | 2 |
| RUSINEA URSULUI | 1 |
| RUSULITA | 1 |
| RUTA | 1 |
| RUTISOR | 3 |
| RUTISOR GALBEN | 1 |
| SABITA | 2 |
| SABIUTA | 2 |
| SACAL | 1 |