| Centranthus sieberi Heldr. |
Valerianaceae |
| Cephalanthera cucullata Boiss. & Heldr. |
Orchidaceae |
| Cephalanthera longifolia (L.) Fritsch |
Orchidaceae |
| Chaerophyllum creticum Boiss. & Heldr. |
Apiaceae |
| Cirsium morinifolium Boiss. & Heldr. |
Asteraceae |
| Clematis elisabethae-carolae Greuter |
Ranunculaceae |
| Colchicum macrophyllum B. L. Burtt |
Colchicaceae |
| Convolvulus argyrothamnos Greuter |
Convolvulaceae |
| Corydalis uniflora (Sieber) Nyman |
Fumariaceae |
| Crepis auriculifolia Spreng. |
Asteraceae |
| Crepis pusilla (Sommier) Merxm. |
Asteraceae |
| Crepis sibthorpiana Boiss. & Heldr. |
Asteraceae |
| Crepis tybakiensis Vierh. |
Asteraceae |
| Crucianella macrostachya Boiss. |
Rubiaceae |
| Cuscuta atrans Feinbrun |
Convolvulaceae |
| Cyclamen creticum (Dörfl.) Hildebr. |
Primulaceae |
| Cyclamen graecum Link subsp. candicum Ietsw. ex Grey-Wilson |
Primulaceae |
| Cymodocea nodosa (Ucria) Asch. |
Cymodoceaceae |
| Cynoglossum sphacioticum Boiss. & Heldr. |
Boraginaceae |
| Dactylorhiza romana (Sebast.) Soó subsp. romana |
Orchidaceae |
| Daphne jasminea Sm. |
Thymelaeaceae |
| Datisca cannabina L. |
Datiscaceae |
| Dianthus fruticosus L. subsp. creticus (Tausch) Runemark |
Caryophyllaceae |
| Dianthus fruticosus L. subsp. occidentalis Runemark |
Caryophyllaceae |
| Dianthus juniperinus Sm. subsp. heldreichii Greuter |
Caryophyllaceae |
