1. Chiefly tropical or xerophytic woody plants; practically unknown as fossils but considered close to the ancestral line of angiosperms
   - Gnetales

Type of: plant order

Part of: class Gnetopsida, Gnetophyta, Gnetophytina, Gnetopsida, subdivision Gnetophytina

• Corylus
• Corylus americana
• Corylus avellana
• Corylus avellana grandis
• Corylus cornuta
• corymb
• corymbose
• Corynebacteriaceae
• corynebacterium
• Corynebacterium diphtheriae
• Corypha
• Corypha gebanga
• Corypha umbraculifera
• Corypha utan
• Coryphaena equisetis
• Coryphaena hippurus
• Coryphaenidae
• coryphantha
• corythosaur
• corythosaurus
• coryza
• cos
• cos lettuce
• Cosa Nostra
• coscoroba