| Name | Accession number | Synonym | Species | Habit | Locality |
|---|---|---|---|---|---|
| YIYUAN-2 | TR.AE | S | CHN:Sichuan | ||
| YIZAIXIAOMAI | ZM-7881 | TR.AE | CHN:Sichuan | ||
| YIZHIMAI | TR.AE | S | CHN | ||
| YI-ZUO-MAO | AUS-21097 | TR.AE | CHN | ||
| YMI-6 | AUS-23420; AUS-23806; CN-52228 | 36B-0Y[1932]; | TR.AE | MEX | |
| YOBILO-INIA | CM-62661-D-1M-1Y-3M-2Y-0M-CHL[1281]; | TR.AE | S | CHL | |
| YOCA | X-1648-2N-1M-4Y-8M-0N-1B-0A[2331]; | TR.SE | S | BRA | |
| YOCO | X-1648-2N-0M[2964]; | TR.SE | S | MEX | |
| YOCO-RESEL | K-749 | X-1648-RESEL[2964]; | TR.SE | S | MEX |
| YOGO | K-33080; CI-8033; KU-327; AFRC-8442 | CAN-2502[1318]; CN-52491[3116]; | TR.AE | W | USA:Kansas |
| YOGO-1231 | K-51824 | TR.AE | W | USA | |
| YOGO-2458 | K-51835 | TR.AE | W | USA | |
| YOGUI | K-1254 | B-2734[2964]; | TR.SE | S | MEX |
| YOGUI-1 | B-2734-1[2964]; | TR.SE | S | MEX | |
| YOGUI-10 | B-2734-0M-0MI-0MI-10MI-0Y[2964]; | TR.SE | S | MEX | |
| YOGUI-11 | B-2734-0M-0MI-0MI-18MI-0Y[2964]; | TR.SE | S | MEX | |
| YOGUI-2 | B-2734-0M-0MI-0MI-5MI-0Y[2964]; | TR.SE | S | MEX | |
| YOGUI-3 | B-2734-0M-0MI-0MI-17MI-0Y[2964]; | TR.SE | S | MEX | |
| YOGUI-4 | B-2734-0M-0MI-0MI-19MI-0Y[2964]; | TR.SE | S | MEX | |
| YOGUI-5 | B-2734-0M-0MI-0MI-21MI-0Y[2964]; | TR.SE | S | MEX |