| Canellales | Canellaceae Winteraceae |
| Caryophyllales | Achatocarpaceae Aizoaceae Amaranthaceae Basellaceae Cactaceae Caryophyllaceae Chenopodiaceae Droseraceae Frankeniaceae Halophytaceae Molluginaceae Nyctaginaceae Phytolaccaceae Plumbaginaceae Polygonaceae Portulacaceae Simmondsiaceae Tamaricaceae |
| Celastrales | Celastraceae Hippocrateaceae Parnassiaceae |
| Ceratophyllales | Ceratophyllaceae |
| Chloranthales | Chloranthaceae |
| Commelinales | Commelinaceae Pontederiaceae |
| Cornales | Cornaceae Hydrangeaceae Loasaceae |
| Cucurbitales | Begoniaceae Coriariaceae Cucurbitaceae |
| Cyatheales | Cyatheaceae Dicksoniaceae |
| Cycadales | Cycadaceae |
