| Abbrev | Name | Spec | Type | Locality |
|---|---|---|---|---|
| CABA | CANVASBACK[115][1281]; | TR.DR | S | MEX |
| CAC | CASTANO-COLORADO[145][900][1281]; | TR.AE | W | CHL |
| CAI | CANELO-INIA[145] | TR.AE | S | CHL |
| Cns | CHINESE[1112] | |||
| CAK79 | CAKMAK-79[1281]; | TR.DR | S | TUR |
| CAL,1 | CALIDAD[145][114][144][900][1281]; | TR.AE | S | ARG |
| CAL,2 | CHAGUAL-INIA[115]; | TR.DR | S | CHL |
| CALI,1 | CALIDRIS[115][1281]; | TR.DR | S | MEX |
| CAM,1 | CAMPEIRO[145][900] | TR.AE | S | BRA |
| CAM,2 | CAMBRIDGE[1281]; | TR.DR | GBR | |
| CAN,1 | CANARIO[114][144][900][1281]; | TR.AE | S | MEX |
| CAN,3 | CANARD[115]; | TR.DR | S | MEX |
| CAN21 | ADVANCED-LINE-FROM-CANADA | TR.DR | CAN | |
| CANO | CASTELFUSANO[1281]; | TR.DR | S | ITA |
| CANT | CANUTUS[115][1281]; | TR.DR | S | MEX |
| CANU,1 | CANUS[115]; | TR.DR | S | MEX |
| CAPA | CAPELLA[115][1281]; | TR.DR | S | MEX |
| CAR,1 | CARIFEN-12[145][1281]; | TR.AE | W | CHL |
| CARC | CARCOMUN[115][1281]; | TR.DR | S | MEX |
| CARP | CARPINTERO[114][144][900][1281]; | TR.AE | S | MEX,BRA |