[6] The flowers are produced in panicles (sometimes solitary), and have a five-lobed corolla, typically large (2–5 cm or more long), mostly blue to purple, sometimes white or pink.

[7][citation needed] Well-known species include the northern temperate Campanula rotundifolia, commonly known as harebell in England and bluebell in Scotland and Ireland (though it is not closely related to the true bluebells), and the southern European Campanula medium, commonly known as Canterbury bells (a popular garden plant in the United Kingdom).

[10] In many English translations of the Brothers Grimm's tale Rapunzel, rampion is the vegetable that is stolen from the witch.

[13] There are 448, including: Violdelphin is an anthocyanin, a type of plant pigment, found in the blue flowers in the genus Campanula.

[15] Three fossil seeds of †Campanula palaeopyramidalis have been extracted from borehole samples of the Middle Miocene fresh water deposits in Nowy Sacz Basin, West Carpathians, Poland.