| Name | Accession number | Synonym | Species | Habit | Locality |
|---|---|---|---|---|---|
| REIMS | PI-174690; ERGE-3123 | TR.AE | W | FRA | |
| REINER-BEARDLESS | K-17286; | REIMER-BEARDLESS[541]; | TR.DR | S | SYR |
| REININGHAUS-MAUERNER-DICKKOPF | K-41575; PI-278232,351269; BVAL-3008 | V.REININGHAUS-MAUERNER-DICKKOPFWEIZEN[1445]; REININGHAUS-DICKKOPF[541]; VON-REININGHAUS-MAUERNER-BEGR[39]; MAUERNER-BEGRANNTER-DICKKOPF[39][79][131][946]; MAUERNER-DICKKOPFWEIZEN[761]; | TR.AE | W | DEU:Oberbayern |
| REININGHAUS-VI-2 | VON-REININGHAUS-VI-2[1314]; | TR.AE | DEU | ||
| REISDINKEL | EPEAUTRE-DOUBLE[5]; | TR.DN | W | DEU,CHE,FRA,ITA,AUT | |
| REKE | TR.AE | W | KAZ | ||
| REKEZE-12 | TR.AE | CHN | |||
| REKORD,BGR | K-50790; | TR.AE | W | BGR | |
| REKTOR | K-58304; AFRC-6987 | RECTOR[541]; | TR.AE | W | DEU |
| REKVIEM | K-57272; PI-564423; | REQUIEM[754]; | TR.AE | W | BGR |
| RELAY | TR.AE | W | GBR | ||
| RELDEP | K-44597 | TR.AE | S | AUS:South-Australia | |
| RELIABLE | K-5226; | GIPSY[39][1110]; | TR.AE | W | USA |
| RELIANCE | K-29735; CI-7370,7380; AFRC-8405,6565; | SASK.1851[74]; CAN-1498[74]; | TR.AE | S | USA:Oregon |
| RELIANCE-261-M | TR.AE | S | KEN | ||
| RELIANCE-A | AUS-15269 | TR.AE | S | USA | |
| RELIANCE-B | AUS-14306 | TR.AE | S | USA | |
| RELIANCE-C | AUS-12373 | RL-C[3599]; | TR.AE | S | USA |
| RELIANCE-KLEIN | AUS-3270 | RELIANCE-SEL.KLEIN[145]; RELIANCE-KLEIN-SEL.[1765]; | TR.AE | S | ARG |
| RELIANT | CI-12144 | TR.AE | W | USA:Oklahoma |