| Noun | 1. | bellflower family - family of plants of the order Campanulales; in some classifications includes Lobeliaceaeplant family - a family of plants Campanulales, order Campanulales - an order of plants of the subclass Asteridae including: Campanulaceae; Lobeliaceae; Cucurbitaceae; Goodeniaceae; Compositae genus Campanula - large genus of herbs grown for their blossoms: bellflowers genus Lobelia - in some classifications considered the type genus of a separate family Lobeliaceae |