Campanula asperifolia Campanula eo-cervicaria Campanula glomerata subsp. glabriflora Campanula glomerata f. hispida Campanula glomerata var. hispida Campanula lamioides Campanula maleevii Campanula glomerata subsp. maleevii
World Flora Online, http://www.worldfloraonline.org/, accessed June 20, 2024