1. Southern European annual with spiky heads of crimson flower; extensively cultivated in United States for forage
   - crimson clover, Trifolium incarnatum

Type of: clover, trefoil

• order Cilioflagellata
• order Coccidia
• order code
• order Coleoptera
• order Collembola
• order Columbiformes
• order Colymbiformes
• order Commelinales
• order Coniferales
• order Conodonta
• order Conodontophorida
• order Coraciiformes
• order Cordaitales
• order Corrodentia
• order Crocodilia
• order Crocodylia
• order Cuculiformes
• order Cycadales
• order Cycadofilicales
• order Cyclostomata
• order Cydippea
• order Cydippida
• order Cydippidea
• order Cypriniformes
• order Decapoda