| Name | Accession number | Synonym | Species | Habit | Locality |
|---|---|---|---|---|---|
| COMPFSANE-PRIZE | WINTERWEIZEN-AUS-CANADA[39]; | TR.AE | W | CAN | |
| COMPLET | RICP-01C0105858 | F-1894[2530]; | TR.AE | W | DEU |
| COMPLEX | PURDUE-4126-A-9-16-1-1-3[39][1318]; | TR.AE | W | USA:Indiana | |
| COMPLEX-PEDIGREE | TR.AE | W | USA | ||
| COMPLIMENT | K-64682 | LEU-60505[1371]; | TR.AE | W | DEU |
| COMPOFIORITO | AUS-2050 | TR.AE | ITA | ||
| COMPOSITE | K-44893 | BW-533[1323]; | TR.AE | W;S | CAN:Saskatchewan |
| COMPOSTO | S-4[2331]; | TR.AE | S | BRA | |
| COMPTON | K-59342; PI-478892; AUS-22260 | PD-6728-A-3-22-4-2-1-2[1318]; P-6728-A-3-22-4-2-1-2[283]; | TR.AE | W | USA:Indiana |
| COMPUESTO-Y-50 | CI-14279; AUS-139; CN-9837 | VAR-784-791-Y50[3116]; | TR.AE | S | MEX |
| COMTAL | K-50771; AFRC-2088; AUS-21046; ERGE-2072; | TR.AE | W | FRA | |
| COMUN | K-60571 | TR.AE | S | COL | |
| COMUN-DE-LA-ZORIA | TR.AE | S | |||
| COMUS | TR.AE | S | USA | ||
| CONA | TR.AE | W | ITA | ||
| CONAN | TR.AE | S | USA | ||
| CONCA-DE-MAZZU | TR.AE | W | ITA | ||
| CONCEPT | PI-644021 | 89-S-88-D[000]; | TR.AE | W | USA:Washington |
| CONCERTO | TR.AE | S | GBR | ||
| CONCHO | K-43551; CI-12517; AUS-2177 | OK-43-H-2-123[1318]; | TR.AE | W | USA:Oklahoma |