| Name | Accession number | Synonym | Species | Habit | Locality |
|---|---|---|---|---|---|
| SIRS-57 | LINE-157[3597]; | TR.SE | W | RUS:Novosibirsk | |
| SIRTAKI | TR.AE | W | ITA | ||
| SIRTIYUMRU | PI-166951 | TR.AE | S | TUR | |
| SIRUBAS-2 | AUS-16256 | TR.AE | NPL | ||
| SIRVAN | CGSS-97-Y00034M-099TOPB-027Y-099M-099Y-099M-27Y-0B[4361]; | TR.AE | S | IRN | |
| SISHUI-SHANDA-MAI | K-43938 | TR.AE | S | CHN:Shandong | |
| SISKIN | CM-5566[114][144]; | TR.AE | S | MEX | |
| SISKIN-S | CM-5566[144][137]; | TR.AE | S | MEX | |
| SISKIYOU | CIxt-33; CI-33; CI-17603 | UC-8825[2965]; | TR.SE | USA:California | |
| SISLEY | K-64531 | S-1364[000]; | TR.AE | W | FRA |
| SISSON | PI-617053; CN-113485 | VA-96-W-250[2603][2965][3095]; | TR.AE | W | USA:Virginia |
| SISTA | TR.AE | ITA | |||
| SISTAN,2006 | TR.AE | S | IRN | ||
| SISTAN,LV | K-38608 | TR.DR | I | IRN | |
| SISTAR | K-56745; AFRC-7554; AUS-24381 | TR.AE | W | ITA:Bologna | |
| SISULJA | K-38944; K-38945; K-38977 | TR.AE | W | YUG | |
| SISY | TR.AE | W | HRV | ||
| SITAPUR-MUNDIA | TR.AE | S | IND | ||
| SITAPUR-MURIA | TR.AE | S | IND | ||
| SITAPUR-SOFT-WHITE | TR.AE | S | IND |