1. Chiefly tropical shrubs and trees and climbers having leathery leaves or flattened leaflike stems: genera Dillenia and Hibbertia
   - Dilleniaceae

Type of: dilleniid dicot family

Part of: Hypericales, order Hypericales, order Parietales, Parietales

• genus Cotoneaster
• genus Cottus
• genus Cotula
• genus Coturnix
• genus Coumarouna
• genus Cracticus
• genus Crambe
• genus Crangon
• genus Craspedia
• genus Crassostrea
• genus Crassula
• genus Crataegus
• genus Crateva
• genus Crax
• genus Crepis
• genus Crescentia
• genus Crex
• genus Cricetus
• genus Crocethia
• genus Crocodilus
• genus Crocodylus
• genus Crocus
• genus Crocuta
• genus Cronartium
• genus Crotalaria