Campanula strigosa 
Campanula sulphurea 
Campanula versicolor 
Canary Bellflower 
Canterbury-Bells 
Cardinal Flower 
Centropogon cornutus 
Centropogon granulosus 
Centropogon valerii 
Clasping Venus's Looking Glass 
Clustered bellflower 
Common Pratia 
Creeping Bellflower 
Cyananthus inflatus 
Devil's Tobacco 
Diamond-leaved bellflower 
Downy lobelia 
Edraianthus tenuifolius 
European bellflower 
Garden Lobelia 
Giant lobelia 
Great Blue Lobelia 
Harebell 
Heyne's Lobelia