Bristly fiddleneck 
Broadleaf Bluebells 
Brunnera orientalis 
Buglossoides incrassata 
Buglossoides tenuiflora 
Caccinia macranthera 
California monkey-fiddle 
Caucasian Comfrey 
Cerinthe palaestina 
Changing forget-me-not 
Chinese Forget-Me-Not 
Clasping-Leaf Borage 
Common bugloss 
Common comfrey 
Common gromwell 
Common lungwort 
Cordia boissieri 
Creeping Comfrey 
Creeping gromwell 
Cretan vipers bugloss 
Cryptantha affinis 
Cushion cryptantha 
Cynoglossum columnae 
cynoglossum grande