| Name | Accession number | Synonym | Species | Habit | Locality |
|---|---|---|---|---|---|
| IRTYSHANKA-10 | K-52725; K-51898; PI-572627; AUS-24522 | LUTESCENS-1179-9-5[983]; | TR.AE | S | RUS:Omsk |
| IRTYSHANKA-5 | K-49381; PI-414539 | TR.AE | S | RUS:Omsk | |
| IRTYSHANKA-7 | K-49383; K-52722; PI-414540 | ALBIDUM-831-217-3[983]; | TR.AE | S | RUS:Omsk |
| ISA-1 | AFRC-7220 | ISA-UNO[39]; ISA[1067][1373][1640]; | TR.DR | W | ITA:Bari |
| ISABEL | TR.AE | W | ITA | ||
| ISADUR | TR.DR | FRA | |||
| IS-AGAPE | RICP-01C0107368 | TR.AE | W | SVK | |
| IS-BONNET | RICP-01C0107323 | SO-1304[761]; | TR.AE | W | SVK |
| I.S.C-6000 | TR.AE | ||||
| IS-CORVINUS | TR.AE | W | SVK | ||
| ISD-215 | TR.AE | S | IND | ||
| IS-DURAPEX | TR.DR | S | SVK | ||
| ISENGRAIN | K-64527; AFRC-10008 | TR.AE | W | FRA | |
| ISEPTON-36 | K-62082 | TR.AE | S | MEX | |
| ISEPTON-9 | K-62081 | TR.AE | S | MEX | |
| ISERABLES-1145-A | TR.AE | W | CHE | ||
| ISERABLES-1145-G | TR.AE | W | CHE | ||
| ISERABLES-1147-A | TR.AE | W | CHE | ||
| ISERABLES-1147-D | TR.AE | W | CHE | ||
| ISERABLES-1147-I | TR.AE | W | CHE |