| Name | Accession number | Synonym | Species | Habit | Locality |
|---|---|---|---|---|---|
| ISHIWARI | KU-1252; | TR.AE | W | JPN | |
| ISHKASHIM-B-3 | K-3274 | TR.SE | S | TJK | |
| ISHRAISHRA | TR.AE | S | LBY | ||
| ISIDORA | NS-27-03[1371][4093]; | TR.AE | W | SER | |
| ISIDOR,DEU | K-57218; AFRC-3514 | TR.AE | W | DEU | |
| ISIDOR,FRA | TR.AE | W | FRA | ||
| ISILDUR | TR.DR | S | ITA | ||
| ISIS | K-55112; PI-422404; AFRC-6838; AUS-99005 | TR.AE | W;S | AUS:Tasmania | |
| IS-JARISSA | TR.AE | S | SVK | ||
| ISKAMISH | AUS-11570; AUS-11571 | TR.AE | S | TUR | |
| ISKAMISH-K-2 | AUS-14860; AUS-14861 | TR.AE | AFG | ||
| ISKAMISH-K-2-DARK | K-55127 | TR.AE | S | AFG | |
| ISKAMISH-K-2-LIGHT | K-55118 | TR.AE | S | AFG | |
| ISKAMISH-KATAGAN-2 | AUS-95038 | TR.AE | AFG | ||
| IS-KARPATIA | PI-668226; RICP-01C0107119 | TR.AE | W | SVK | |
| ISKINDERI-136-A | K-49978 | TR.DR | S | TUR | |
| ISKRA,RUS | K-38783; PI-280452; PI-393965 | MILTURUM-1447[37][10][11][12][1447]; | TR.AE | S | RUS:Chelyabinsk |
| ISKRA,TR.SE | K-831 | FOTON[541]; | TR.SE | W | UKR:Odessa |
| ISKRA,UKR | TR.AE | W | UKR:Vinnitsa | ||
| ISKRA,YUG | K-59736 | NS-7004[851]; | TR.AE | W | YUG:Serbia |