| Clausena excavata |
Wampee |
| Clematis flammula |
Sweet Clematis |
| Clematis japonica |
Hybrid Clematis; Jackman's Clematis |
| Clematis terniflora |
Autumn Clematis |
| Clematis vitalba |
Evergreen Clematis; Traveller's Joy; Old Man's Beard |
| Cleoserrata speciosa |
Showy Spider Flower; Garden Spiderflower |
| Clerodendrum chinense |
Odorous Clerodendron |
| Clerodendrum indicum |
Chinese Honeysuckle; Turk's Turban |
| Clerodendrum paniculatum |
Pagoda Flower |
| Clerodendrum quadriloculare |
Starburst Bush, Star Burst Bush; Shooting Star; Philippine Glorybower |
| Clerodendrum speciosissimum |
Glory Bower; Red Bleeding Heart Vine; Scarlet Clerodendron |
| Clerodendrum splendens |
Scarlet Glory |
| Clerodendrum thomsoniae |
Mrs. Thomson's Clerodendrum; Bleeding Heart Vine |
| Clinopodium nepeta spruneri |
Lesser Calamint |
| Clinostomum |
|
| Clitoria ternatea |
Butterfly Pea Vine; Blue Pea |
| Clitostethus arcuatus |
|
| Clivia miniata |
Kaffir Lily; Natal Lily; Bush Lily |
| Clogmia albipunctatus |
|
| Closterocerus |
|
| Clunio |
|
| Clunio marshalli |
|
| Cobaea scandens |
Cup and Saucer Vine; Cup-and-Saucer Vine; Cathedral Bells |
| Coboldia fuscipes |
|
| Coccidencyrtus ochraceipes |
|
| Coccidoxenoides perminutus |
|
| Coccobius testaceus |
|
| Coccoloba diversifolia |
Pigeon Plum; Barbadoes Grape Tree |
| Coccophagus lycimnia group |
|
| Coccophagus ochraceus |
|
