Campyloneuron 
Canavalia 
Canella 
Canbya 
Canna 
Cannabis 
Canotia 
Capnoides 
Capnorea 
Capparis 
Capraria 
Capriola 
Capsella 
Capsicum 
Cardamine 
Cardiospermum 
Carduus 
Carex 
Carica 
Carlowrightia 
Carminatia 
Carpenteria 
Carpephorus 
Carphochaete 
Carpinus 
Carum 
Carya 
Cassandra 
Cassia 
Cassiope 
Cassytha 
Castalia 
Castanea 
Castanopsis 
Castela 
Castilleja 
Casuarina 
Catabrosa 
Catalpa 
Catesbaea 
Cathestecum 
Catopsis 
Caucalis 
Caulanthus 
Caulophyllum 
Cayaponia 
Ceanothus 
Cebatha 
Cedronella 
.Celastrus 
Celosia 
Celtis 
Cenchrus 
Centaurea 
Centella 
Centromadia 
Centrophyllum 
Centrosema 
Centunculus 
Cephalanthera 
Cephalanthus 
Ceranthera 
Cerastium 
Ceratiola 
Ceratophyllum 
Ceratopteris 
243 
Cercidium 
Cercis 
Cercocarpus 
Cereus 
Cestrum 
Cevallia 
Chaenactis 
Chaerophyllum 
Chaetadelpha 
Chaetocalyx 
Chaetochloa 
Chaetopappa 
Chamaebatia 
Chamaebatiaria 
Chamaecistus 
Chamaecrista 
Chamaecyparis 
Chamaedaphne 
Chamaelirion 
Chamaenirion 
Chamaerhodos 
Chamaesaracha 
Chapmania 
Chaptala 
Cheilanthes 
Cheilogramma 
Cheiranthus 
Cheiroglossa 
Chelidonium 
Chelone 
Chenopodium 
Chilopsis 
Chimaphila 
Chiococca 
Chiogenes 
Chionanthus 
Chionophila 
Chloris 
Chlorogalum 
Choisya 
Chondrilla 
Chondrophora 
Chorizanthe 
Chrosperma 
Chrysactinia 
Chrysamphora 
Chrysanthemum 
Chrysaspis 
Chrysobolanus 
Chrysogonum 
Chrysoma 
Chrysophyllum 
Chrysopogon 
Chrysopsis 
Chrysosplenium 
Chrysothamnus 
Chylisma 
Chytraculia 
Cicer 
Cichorium 
Cicuta 
Cienfugosia 
Cimicifuga 
Cinna 
Circaea 
* Cissus 
Citharexylum 
Citrullus 
Citrus 
Cladium 
Cladothamnus 
Cladothrix 
Cladrastis 
Clappia 
Clarkia 
Claytonia 
Clematis 
Cleome 
Cleomella 
Clethra 
Cliftonia 
Clinopodium 
Clintonia 
Clitoria 
Clusia 
Cneoridium 
Cnicus 
Cnicus 
Coccoloba 
Coccolobis 
Coccothrinax 
Cocculus 
Cochlearia 
Cochlearia 
Cochranea 
Cocos 
Coelopleurum 
Coix 
Coldenia 
Coleanthus 
Coleogyne 
Colesanthus 
Collinsia 
Collinsonia 
Collomia 
Cologania 
Colpodium 
Coloptera 
Colubrina 
Comandra 
Comarella 
Comarum 
Commelina 
Comptonia 
Conanthus 
Condalia 
Conioselinum 
Conium 
Conobea 
Conocarpus 
Conopholis 
Conradina 
Conringia 
Convallaria 
Convolvulus 
Conzya 
Cooperia 
Coptis 
Corallorhiza 
Corchorus 
Cordia 
Cordylanthus 
