| SL | Common Name | Local Name | Scientific Name | Domain | Kingdom | Phylum | Class | Order | Family | Genus | Species | Sub Species |
| 111 | Castor plant | Era gos | Ricinus communis | Eukaryota | Plantae | Angiosperm | Dicots | Malpighiales | Euphorbiaceae | Ricinus | communis | |
| 112 | Cat | Mekuri | Felis catus | Eukaryota | Animalia | Chordata | Mammalia | Carnivora | Felidae | Felis | catus | |
| 113 | Catfish | Glyptothorax striatus | Eukaryota | Animalia | Chordata | Pisces | Siluriformes | Sisoridae | Glyptothorax | striatus | ||
| 114 | Catla | Bhokua | Gibelion catla | Eukaryota | Animalia | Chordata | Actinopterygii | Cypriniformes | Cyprinidae | Gibelion | catla | |
| 115 | Cattle Egret | Go Bog | Bubulcus ibis | Eukaryota | Animalia | Chordata | Aves | Pelecaniformes | Ardeidae | Bubulcus | ibis | |
| 116 | Cauliflower | Fulkobi | Brassica oleraceae var botrytis | Eukaryota | Plantae | Angiosperm | Dicots | Brassicales | Brassicaceae | Brassica | oleraceae | |
| 117 | Cavia Catfish | Glyptothorax cavia | Eukaryota | Animalia | Chordata | Pisces | Siluriformes | Sisoridae | Glyptothorax | cavia | ||
| 118 | Chaguni | Keintah Puthi | Chagunius chagunio | Eukaryota | Animalia | Chordata | Pisces | Cypriniformes | Cyprinidae | Chagunius | chagunio | |
| 119 | champak | Titasopa | Magnolia champaca | Eukaryota | Plantae | Angiosperm | Dicots | Magnoliales | Magnoliaceae | Michelia | champaca | |
| 120 | Chaste Tree | Posotiya | Vitex negundo | Eukaryota | Plantae | Angiosperm | Dicots | Lamiales | Verbenaceae | Vitex | negundo |