| Name | Accession number | Synonym | Species | Habit | Locality |
|---|---|---|---|---|---|
| ORO,ITA | K-25731; | ORE[39]; | TR.DR | W | ITA |
| ORONTE | CD-21884[1281]; | TR.DR | S | SYR | |
| ORONTE-1 | CD-21884[1281]; | TR.DR | S | MEX,SYR | |
| ORONTE-2 | CD-21884[1281]; | TR.DR | S | MEX,SYR | |
| ORONTE-3 | CD-21884[1281]; | TR.DR | S | MEX,SYR | |
| ORONTE-4 | CD-21884[1281]; | TR.DR | S | MEX,SYR | |
| ORONTE-5 | CD-21884[1281]; | TR.DR | S | MEX,SYR | |
| ORONTE-6 | CD-21884[1281]; | TR.DR | S | MEX,SYR | |
| ORONTE-7 | CD-21884[1281]; | TR.DR | S | MEX,SYR | |
| OROPOS | PI-639687; C.I.02052 | YG-09275-1[3363]; | TR.AE | S | GRC |
| OROUA | K-60619; AFRC-6910; AUS-19998 | TR.AE | S | NZL | |
| ORO,USA | K-26420; CI-8220; AUS-3135; CN-52492 | TR.AE | W | USA:Oregon | |
| OROVCANKA | K-56793; AUS-21078 | L-1419-72[3589]; | TR.AE | W | MKD |
| OROX | TR.AE | W | USA | ||
| ORPAS-2 | K-56741 | ORPAS-2-B[39]; | TR.AE | W | ITA |
| ORPEAL | TR.AE | FRA | |||
| ORPHEUS | CM-6604[4136]; | TR.AE | W | GBR | |
| ORPIC | RICP-01C0106776 | 96-ST-148[000]; | TR.AE | W | FRA |
| ORQUAL | K-63648; ERGE-4859 | TR.AE | W | FRA | |
| ORS-85010 | TR.AE | S | USA:Oregon |