| Name | Accession number | Synonym | Species | Habit | Locality |
|---|---|---|---|---|---|
| CWW-WN-156 | WN-156-NSD[667]; CWW-156-NSD[761]; | TR.AE | W | GBR:England | |
| CYBER | TR.AE | W | GBR | ||
| CYCLON | TR.AE | W | NLD | ||
| CYCLUS | NORD-346-L-3-1[4136]; | TR.SE | W | DEU | |
| CYGNE | CD-35550[1281][3692]; | TR.DR | S | MEX | |
| CYGNUS | CM-18004[3692]; | TR.DR | S | MEX | |
| CYIHURE | CM-67387[1551]; | TR.AE | RWA | ||
| CYMBAL | CYMBALL[39]; | TR.AE | AUS:New-South-Wales | ||
| CYPRESS,TR.AE | K-45009; CI-13344; AFRC-8344; CN-1739,12618 | CT-740[3989]; 4352-123[3989]; CYPORESS[946]; | TR.AE | S | CAN:Saskatchewan |
| CYPRESS,TR.DR | K-50191 | TR.DR | S | TUR | |
| CYPRUS | TR.AE | GRC | |||
| CYPRUS-1 | AUS-4308 | CYD-84-113-52D-0P-2M-0P[1556]; | TR.DR | CYP:Nicosia | |
| CYPRUS-2 | CYD-84-113-52D-0P-10M-0P[1556]; | TR.DR | CYP:Nicosia | ||
| CYPRUS-3 | CYD-84-330-29D-0P-6M-0P[1556]; | TR.DR | CYP:Nicosia | ||
| CYPRUS-4 | AUS-4319 | CYD-84-330-29D-0P-3M-0P[1556]; | TR.DR | CYP:Nicosia | |
| CYPRUS-9 | AUS-4327 | TR.AE | CYP | ||
| CYRANO-BEARDED | TR.AE | ||||
| CYRANO-BEARDED-2 | TR.AE | ||||
| CYRANO,DEU | K-51609; AFRC-2832 | TR.AE | W | DEU | |
| CYRANO,FRA | ERGE-4795 | TR.AE | W | FRA |