Flowering plants
1,754 species| Photo | English | සිංහල | தமிழ் | Scientific name | IUCN | Endemic |
|---|---|---|---|---|---|---|
| Capparis divaricata | — | — | Capparis divaricata | — | ||
| Capparis moonii | — | — | Capparis moonii | — | ||
| Capparis roxburghii | — | — | Capparis roxburghii | — | ||
| Capparis tenera | — | — | Capparis tenera | LC | — | |
| Caracas Rattlebox | — | — | Crotalaria micans | LC | — | |
| Carallia | — | — | Carallia brachiata | LC | — | |
| Cardinal Creeper | — | — | Ipomoea horsfalliae | — | ||
| Cardinal’s Guard | — | — | Pachystachys coccinea | — | ||
| Cardinal’s Guard | — | — | Odontonema cuspidatum | — | ||
| Cardinals Guard | — | — | Pachystachys spicata | — | ||
| Caricature-Plant | — | கிராப்டோபில்லம் பிக்டம் | Graptophyllum pictum | — | ||
| Carolina Fanwort | — | — | Cabomba caroliniana | — | ||
| Carruthers’ Falseface | — | — | Pseuderanthemum carruthersii | — | ||
| Casearia thwaitesii | — | — | Casearia thwaitesii | — | ||
| Casearia zeylanica | — | — | Casearia zeylanica | — | ||
| Cassia ferruginea | — | — | Cassia ferruginea | LC | — | |
| Cassia moschata | — | — | Cassia moschata | LC | — | |
| Cat-Thorn | — | கொக்கிமுள்ளு | Scutia myrtina | LC | — | |
| Cat’s Claw | — | — | Martynia annua | — | ||
| Cat’s Whiskers | — | பூனை மீசை செடி | Orthosiphon aristatus | — | ||
| Catclaw Vine | — | — | Dolichandra unguis-cati | — | ||
| Cathormion umbellatum | — | — | Cathormion umbellatum | LC | — | |
| Caustic Vine | — | — | Cynanchum viminale | — | ||
| Celosia polygonoides | — | — | Celosia polygonoides | — | ||
| Centranthera indica | — | — | Centranthera indica | LC | — | |
| Centranthera tranquebarica | — | — | Centranthera tranquebarica | LC | — | |
| Cerastium lanceolatum | — | — | Cerastium lanceolatum | — | ||
| Ceropegia candelabrum | — | செய்ரோபேஜியா கண்டலபரம் | Ceropegia candelabrum | — | ||
| Ceylon Balsam | — | — | Impatiens repens | — | ||
| Ceylon Forget Me Not | — | — | Cynoglossum zeylanicum | VU | — | |
| Ceylon Gooseberry | කැටඹිල්ල | கொக்கு வெட்டி | Dovyalis hebecarpa | — | ||
| Ceylon Oak | — | பூக்கம் | Schleichera oleosa | LC | — | |
| Ceylon Raspberry | — | — | Rubus niveus | — | ||
| Ceylon Swamp Mallow | — | — | Pavonia zeylonica | — | ||
| Chaetocarpus castanicarpus | — | — | Chaetocarpus castanicarpus | LC | — | |
| Chamaecrista kleinii | — | — | Chamaecrista kleinii | — | ||
| Chamberbitter | රත් පිටවක්කා | செங்கீழாநெல்லி | Phyllanthus urinaria | — | ||
| Champak Tree | — | சண்பகம் | Magnolia champaca | LC | — | |
| Championia reticulata | — | — | Championia reticulata | — | ||
| Chayote | — | — | Sicyos edulis | — | ||
| Chenille-Plant | — | — | Acalypha hispida | — | ||
| Chickenspike | — | — | Sphenoclea zeylanica | LC | — | |
| Chickenweed Purslane | — | — | Portulaca quadrifida | — | ||
| China Knotweed | — | — | Persicaria chinensis | — | ||
| China Rose | — | — | Rosa chinensis | — | ||
| Chinese Banyan | — | — | Ficus microcarpa | LC | — | |
| Chinese Bur | — | — | Triumfetta rhomboidea | — | ||
| Chinese Cinnamon | — | — | Cinnamomum cassia | — |
