| 1 | Native | Northern America | Eastern Canada | Canada | New Brunswick | | Scoggan, H. J. 1978-1979. The flora of Canada, 4 vol. Note: = Pyrus arbutifolia var. nigra Willd. |
| 1 | Native | Northern America | Eastern Canada | Canada | Newfoundland and Labrador | | Scoggan, H. J. 1978-1979. The flora of Canada, 4 vol. Note: = Pyrus arbutifolia var. nigra Willd. |
| 1 | Native | Northern America | Eastern Canada | Canada | Nova Scotia | | Scoggan, H. J. 1978-1979. The flora of Canada, 4 vol. Note: = Pyrus arbutifolia var. nigra Willd. |
| 1 | Native | Northern America | Eastern Canada | Canada | Ontario | s. | Scoggan, H. J. 1978-1979. The flora of Canada, 4 vol. Note: = Pyrus arbutifolia var. nigra Willd. |
| 1 | Native | Northern America | Eastern Canada | Canada | Prince Edward Island | | Scoggan, H. J. 1978-1979. The flora of Canada, 4 vol. Note: = Pyrus arbutifolia var. nigra Willd. |
| 1 | Native | Northern America | Eastern Canada | Canada | Québec | s. | Scoggan, H. J. 1978-1979. The flora of Canada, 4 vol. Note: = Pyrus arbutifolia var. nigra Willd. |
| 1 | Native | Northern America | North-Central U.S.A. | United States | Illinois | | Mohlenbrock, R. H. & D. M. Ladd. 1978. Distribution of Illinois vascular plants |
| 1 | Native | Northern America | North-Central U.S.A. | United States | Iowa | n.e. | Eilers, L. J. & D. M. Roosa. 1994. The vascular plants of Iowa |
| 1 | Native | Northern America | North-Central U.S.A. | United States | Minnesota | e. | 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 | Stoddard Co. | Steyermark, J. A. 1977. Flora of Missouri. Note: = Pyrus melanocarpa (Michx.) Willd. |
| 1 | Native | Northern America | North-Central U.S.A. | United States | Wisconsin | | |
| 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 | | Deam, C. C. 1940. Flora of Indiana. |
| 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. Note: = Aronia prunifolia (Marshall) Rehder |
| 1 | Native | Northern America | Northeastern U.S.A. | United States | New Hampshire | | 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 York | | 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 | Ohio | | Gleason, H. A. & A. Cronquist. 1991. Manual of vascular plants of northeastern United States and adjacent Canada, ed. 2 |
| 1 | Native | Northern America | Northeastern U.S.A. | United States | Pennsylvania | | Wherry, E. T. et al. 1979. Atlas of the flora of Pennsylvania. |
| 1 | Native | Northern America | Northeastern U.S.A. | United States | Rhode Island | | 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 | Vermont | | 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 | West Virginia | | Harmon, P. J. et al. 2006. Checklist and atlas of the vascular flora of West Virginia. |
| 1 | Native | Northern America | Southeastern U.S.A. | United States | Alabama | n. | Weakley, A. S. 2007. Flora of the Carolinas, Virginia, and Georgia, and surrounding areas. |
| 1 | Native | Northern America | Southeastern U.S.A. | United States | Georgia | n. | Weakley, A. S. 2007. Flora of the Carolinas, Virginia, and Georgia, and surrounding areas. |
| 1 | Native | Northern America | Southeastern U.S.A. | United States | Kentucky | | Jones, R. L. 2005. Plant life of Kentucky: an illustrated guide to the vascular flora. |
| 1 | Native | Northern America | Southeastern U.S.A. | United States | Maryland | w. | Brown, R. G. & M. L. Brown. 1972. Woody plants of Maryland |
| 1 | Native | Northern America | Southeastern U.S.A. | United States | North Carolina | w. | Weakley, A. S. 2007. Flora of the Carolinas, Virginia, and Georgia, and surrounding areas. |
| 1 | Native | Northern America | Southeastern U.S.A. | United States | South Carolina | | Weakley, A. S. 2007. Flora of the Carolinas, Virginia, and Georgia, and surrounding areas. |
| 1 | Native | Northern America | Southeastern U.S.A. | United States | Tennessee | | Wofford, B. E. Database of Tennessee vascular plants (on-line resource). |
| 1 | Native | Northern America | Southeastern U.S.A. | United States | Virginia | | Virginia Botanical Associates. Digital atlas of the Virginia flora (on-line resource). |
| 2 | Cultivated | | | | | also cult. elsewhere in temperate regions | |
| 2 | Cultivated | Europe | Middle Europe | Hungary | | | Hanelt, P., ed. 2001. Mansfeld's encyclopedia of agricultural and horticultural crops. Volumes 1-6 |
| 2 | Cultivated | Europe | Middle Europe | Slovakia | | | Hanelt, P., ed. 2001. Mansfeld's encyclopedia of agricultural and horticultural crops. Volumes 1-6 |
| 2 | Cultivated | Europe | Northern Europe | Denmark | | | Hanelt, P., ed. 2001. Mansfeld's encyclopedia of agricultural and horticultural crops. Volumes 1-6 |
| 2 | Cultivated | Europe | Northern Europe | Finland | | | Hanelt, P., ed. 2001. Mansfeld's encyclopedia of agricultural and horticultural crops. Volumes 1-6 |