| Abbrev | Name | Spec | Type | Locality |
|---|---|---|---|---|
| CART | CARTHAYA[144][1281] | TR.AE | I | ESP |
| CAS,1 | COLONIAS[145][900] | TR.AE | S | BRA |
| CAS,2 | CASPIA[115][1281]; | TR.DR | S | MEX |
| CASA | CASARCA[115][1281]; | TR.DR | S | MEX |
| CBA | CURITIBA[145][1281]; | TR.AE | S | BRA |
| CBC | CEBECO[144][1281]; | TR.AE | NLD | |
| CBFN | CABILDOFEN[145][1281]; | TR.DR | CHL | |
| CBY,1 | CROSBY[900][1281]; | TR.DR | S | USA |
| CC,1 | CORRECAMINOS[114][144][900][1281]; | TR.AE | S | MEX |
| CC,2 | CHANCELLOR | TR.AE | W | USA |
| CCHI | COCHICO-INTA[145][144][1281]; | TR.AE | S | ARG |
| CCN | CINCANA[145][900][1281]; | TR.AE | S | BRA |
| CCOL | COLONCOL[145] | TR.AE | S | BRA |
| CD | CAPPELLE-DESPREZ[145][900][1281]; | TR.AE | W | FRA |
| CDA,1 | CANDIOTA[145][740]; | TR.AE | S | BRA |
| CDA,2 | CURINDA-87[144][1281] | TR.AE | S | MEX |
| CDK | CANDEAL-DURUMBUCK[145][900][1281][1765]; | TR.DR | S | ARG |
| CDL | CARDINAL[114][144][900][1281]; | TR.AE | S | MEX |
| CDM | CASTEL-DEL-MONTE[900][1281]; | TR.DR | S | ITA |
| CDO,1 | CONTESTADO[145][900][1281]; | TR.AE | S | BRA |