Campanula medium, common name Canterbury bells, is an annual or biennial flowering plant of the genus Campanula, belonging to the family Campanulaceae. In floriography, it represents gratitude, or faith and constancy.
The specific epithet medium means that this plant has intermediate characteristics in respect of other species of the genus Campanula. In Persian, it is called گل استکانی (gol-e estekani) meaning 'glass flower', because the flower resembles a drinking glass.
Campanula medium reaches ...