- curlew sandpiper
- calycanthus occidentalis
- coffeeberry
- condor
- capeweed
- cat's_ear
- conium maculatum
- cypripedium californicum
- coast live oak
- cpi
- cercis occidentalis
- coast redwood
- calpac
- calostomataceae
- calpack
- calque
- calpe
- caltha palustris
- calumet
- calumniation
- calque formation
- caltrop
- caltha
- calumniatory
- calumniously
- calvados
- calvary cross
- calvatia
- calvatia gigantea
- calvary
- calvary clover
- calvin
- calves' feet
- calvert vaux
- calve
- calvin coolidge
- calvin klein
- calvinism
- calvinist
- calvin richard klein
- calvinistic
- calvino
- calvinistical
- calvinistic baptist
- calycanthus
- calyceal
- calycanthaceae
- calycanthus floridus
- calycanthus family
- calycinal