| 1 | Native | Northern America | Eastern Canada | Canada | Ontario | | Scoggan, H. J. 1978-1979. The flora of Canada, 4 vol. |
| 1 | Native | Northern America | North-Central U.S.A. | United States | Illinois | | Jones, G. N. & G. D. Fuller. 1955. Vascular plants of Illinois. |
| 1 | Native | Northern America | North-Central U.S.A. | United States | Iowa | | Eilers, L. J. & D. M. Roosa. 1994. The vascular plants of Iowa |
| 1 | Native | Northern America | North-Central U.S.A. | United States | Kansas | | McGregor, R. L. et al. (The Great Plains Flora Association). 1977. Atlas of the Flora of the Great Plains. |
| 1 | Native | Northern America | North-Central U.S.A. | United States | Minnesota | | Ownbey, G. B. & T. Morley. 1991. Vascular plants of Minnesota: a checklist and atlas |
| 1 | Native | Northern America | North-Central U.S.A. | United States | Missouri | | Lammers, T. G. 2007. World checklist and bibliography of Campanulaceae. |
| 1 | Native | Northern America | North-Central U.S.A. | United States | Nebraska | | McGregor, R. L. et al. (The Great Plains Flora Association). 1977. Atlas of the Flora of the Great Plains. |
| 1 | Native | Northern America | North-Central U.S.A. | United States | North Dakota | | McGregor, R. L. et al. (The Great Plains Flora Association). 1977. Atlas of the Flora of the Great Plains. |
| 1 | Native | Northern America | North-Central U.S.A. | United States | Oklahoma | e. | McGregor, R. L. et al. (The Great Plains Flora Association). 1977. Atlas of the Flora of the Great Plains. |
| 1 | Native | Northern America | North-Central U.S.A. | United States | South Dakota | | McGregor, R. L. et al. (The Great Plains Flora Association). 1977. Atlas of the Flora of the Great Plains. |
| 1 | Native | Northern America | North-Central U.S.A. | United States | Wisconsin | | Lammers, T. G. 2007. World checklist and bibliography of Campanulaceae. |
| 1 | Native | Northern America | Northeastern U.S.A. | United States | Connecticut | | Magee, D. W. & H. E. Ahles. 1999. Flora of the Northeast. A manual of the vascular flora of New England and adjacent New York. |
| 1 | Native | Northern America | Northeastern U.S.A. | United States | Indiana | | Lammers, T. G. 2007. World checklist and bibliography of Campanulaceae. |
| 1 | Native | Northern America | Northeastern U.S.A. | United States | Maine | | Magee, D. W. & H. E. Ahles. 1999. Flora of the Northeast. A manual of the vascular flora of New England and adjacent New York. |
| 1 | Native | Northern America | Northeastern U.S.A. | United States | Massachusetts | | Magee, D. W. & H. E. Ahles. 1999. Flora of the Northeast. A manual of the vascular flora of New England and adjacent New York. |
| 1 | Native | Northern America | Northeastern U.S.A. | United States | Michigan | | Voss, E. 1972-. Michigan flora. |
| 1 | Native | Northern America | Northeastern U.S.A. | United States | New Hampshire | s.e. | Magee, D. W. & H. E. Ahles. 1999. Flora of the Northeast. A manual of the vascular flora of New England and adjacent New York. |
| 1 | Native | Northern America | Northeastern U.S.A. | United States | New Jersey | | Lammers, T. G. 2007. World checklist and bibliography of Campanulaceae. |
| 1 | Native | Northern America | Northeastern U.S.A. | United States | New York | | Lammers, T. G. 2007. World checklist and bibliography of Campanulaceae. |
| 1 | Native | Northern America | Northeastern U.S.A. | United States | Ohio | | Ohio Flora Committee (E. L. Braun, T. S. Cooperrider, T. R. Fisher, J. J. Furlow). 1967-. The vascular flora of Ohio. |
| 1 | Native | Northern America | Northeastern U.S.A. | United States | Pennsylvania | | Lammers, T. G. 2007. World checklist and bibliography of Campanulaceae. |
| 1 | Native | Northern America | Northeastern U.S.A. | United States | West Virginia | | Lammers, T. G. 2007. World checklist and bibliography of Campanulaceae. |
| 1 | Native | Northern America | Northwestern U.S.A. | United States | Colorado | e. | Lammers, T. G. 2007. World checklist and bibliography of Campanulaceae. |
| 1 | Native | Northern America | Northwestern U.S.A. | United States | Wyoming | | Lammers, T. G. 2007. World checklist and bibliography of Campanulaceae. |
| 1 | Native | Northern America | South-Central U.S.A. | United States | Texas | | Diggs, G. M., Jr. et al. 1999. Shinner's and Mahler's illustrated flora of North Central Texas. |
| 1 | Native | Northern America | Southeastern U.S.A. | United States | Alabama | | Lammers, T. G. 2007. World checklist and bibliography of Campanulaceae. |
| 1 | Native | Northern America | Southeastern U.S.A. | United States | Arkansas | | Smith, E. B. 1978. An atlas and annotated list of the vascular plants of Arkansas |
| 1 | Native | Northern America | Southeastern U.S.A. | United States | Delaware | | Lammers, T. G. 2007. World checklist and bibliography of Campanulaceae. |
| 1 | Native | Northern America | Southeastern U.S.A. | United States | Georgia | | Lammers, T. G. 2007. World checklist and bibliography of Campanulaceae. |
| 1 | Native | Northern America | Southeastern U.S.A. | United States | Kentucky | | Lammers, T. G. 2007. World checklist and bibliography of Campanulaceae. |
| 1 | Native | Northern America | Southeastern U.S.A. | United States | Louisiana | | Lammers, T. G. 2007. World checklist and bibliography of Campanulaceae. |
| 1 | Native | Northern America | Southeastern U.S.A. | United States | Maryland | | Lammers, T. G. 2007. World checklist and bibliography of Campanulaceae. |
| 1 | Native | Northern America | Southeastern U.S.A. | United States | Mississippi | | Lammers, T. G. 2007. World checklist and bibliography of Campanulaceae. |
| 1 | Native | Northern America | Southeastern U.S.A. | United States | North Carolina | w. | Radford, A. E. et al. 1964. Manual of the vascular flora of the Carolinas. |
| 1 | Native | Northern America | Southeastern U.S.A. | United States | South Carolina | | Lammers, T. G. 2007. World checklist and bibliography of Campanulaceae. |
| 1 | Native | Northern America | Southeastern U.S.A. | United States | Tennessee | | Lammers, T. G. 2007. World checklist and bibliography of Campanulaceae. |
| 1 | Native | Northern America | Southeastern U.S.A. | United States | Virginia | | Lammers, T. G. 2007. World checklist and bibliography of Campanulaceae. |
| 1 | Native | Northern America | Western Canada | Canada | Manitoba | | Scoggan, H. J. 1978-1979. The flora of Canada, 4 vol. |
| 2 | Cultivated | | | | | also cult. | Lammers, T. G. 2007. World checklist and bibliography of Campanulaceae. |
| 4 | Naturalized | Europe | Northern Europe | United Kingdom | | | Euro+Med Editorial Committee. Euro+Med Plantbase: the information resource for Euro-Mediterranean plant diversity (on-line resource). |