| Name | Accession number | Synonym | Species | Habit | Locality |
|---|---|---|---|---|---|
| EXCELSIOR,ROM | K-47102; K-45897; PI-350309; PI-376458 | F-141-62[38][761]; EXELSIOR[000]; | TR.AE | W | ROM |
| EXCELSIOR,USA | AUS-17304 | SURPRISE[39]; | TR.AE | S | USA |
| EXCHANGE | K-45306; AFRC-6574; CI-12635; AUS-2376 | RL-1803[2965]; W-2554[851][2331]; RL-2265[221]; CAN-1966[2965]; | TR.AE | S | USA:Indiana |
| EXELDUR | K-63150; K-63151 | TR.DR | I | FRA | |
| EXETER | TR.AE | W | GBR | ||
| EXILE | K-56883; CI-17758 | GP-121[174][454]; | TR.AE | W | USA:Oklahoma |
| EXITO-BAER | AUS-19656 | BT-20[145][1765]; | TR.AE | S | CHL |
| EXITO-II-BAER | BT-64[145][1765]; 75103-B-822-40[145][1765]; | TR.AE | S | CHL | |
| EXKLUSIV | RICP-0C0106217 | TR.AE | W | AUT | |
| EXODUR | K-63152 | TR.DR | S | FRA | |
| EXOTIC | RICP-01C0107024 | TR.AE | W,I | FRA | |
| EXP-3210 | TR.AE | W | USA | ||
| EXPEDITION | PI-629060; | SD-97457[2748][3192]; SOUTH-DAKOTA-97457[000]; | TR.AE | W | USA:South-Dakota |
| EXPERT,AUT | K-63273 | P-9100-1-81[1541]; | TR.AE | W | AUT |
| EXPERT,FRA | H-02178[4136]; | TR.AE | W | FRA | |
| EXP-JG-8001 | TR.AE | W | USA | ||
| EXP-JG-8002 | TR.AE | W | USA | ||
| EXP-JG-8003 | TR.AE | W | USA | ||
| EXP-JG-8004 | TR.AE | W | USA | ||
| EXP-JG-8005 | TR.AE | W | USA |