| Name | Accession number | Synonym | Species | Habit | Locality |
|---|---|---|---|---|---|
| ROJO-PORTELL | TR.DR | ESP | |||
| ROJO-SABANDO | PI-191200; PI-191428; GLKU-3060 | ROJO-DE-SABANDO[2965]; 2371[2965]; | TR.AE | W | ESP |
| ROJO-TEPATEPEC | AUS-1110 | TR.AE | MEX | ||
| ROJO,TR.AE | K-49274 | II-8156[541]; ROJO-II-8156[541]; | TR.AE | S | MEX |
| ROJO,TR.DR | K-20613; PI-168798 | TR.DR | S | MEX | |
| ROJO-TULA | AUS-1111 | TR.AE | MEX | ||
| ROKEL | CD-1895[1281][3692]; | TR.DR | S | MEX | |
| ROKEL-S | K-60409 | CD-1895[1281]; | TR.DR | S | MEX |
| ROKICKA | K-42693; PI-274654; PI-285997; PI-323461 | TR.AE | S | POL | |
| ROKO | K-58266 | TR.DR | S | ITA:Bologna | |
| ROKYCANSKA-SAMETKA | PI-668137 | TR.AE | W | CSK | |
| ROLAND,FRA | HYBRIDE-ROLAND[1446]; | TR.AE | W | FRA | |
| ROLAND,USA | K-59325; CI-17716 | IL-70-4126[1318][397]; | TR.AE | W | USA:Illinois |
| ROLDFEN | AUS-1112 | TR.AE | |||
| ROLETTE | K-49270; CI-15326; | D-6517[969][1318]; D-65-17[2331]; 65.17[115]; | TR.DR | S | USA:North-Dakota |
| ROLLAG | PI-665250 | MN-05214-3[2965]; | TR.AE | S | USA:Minnesota |
| ROLLER | K-64383; AUS-25502 | CM-88930-12Y-0M-0Y-5M-7Y-0B[113]; CM-88930[3692]; | TR.AE | S | MEX |
| ROLLER-X1 | CM-88930-12Y-0M-0Y-4M-5Y-0B-0PZ-3Y-05XM[1281]; CM-88930[1281]; | TR.AE | S | MEX | |
| ROLLER-X10 | CM-88930-10Y-0M-0Y-2M-7Y-0B-0PZ-2Y-05XM[1281]; CM-88930[1281]; | TR.AE | MEX | ||
| ROLLER-X2 | CM-88930-10Y-0M-0Y-2M-5Y-0B-0PZ-3Y-05XM[1281]; CM-88930[1281]; | TR.AE | MEX |