| 1 | Native | Northern America | Northern Mexico | Mexico | Coahuila de Zaragoza | | Villaseñor, J. L. 2016. Checklist of the native vascular plants of Mexico. Rev. Mex. Biodivers. 87:559-902. DOI: 10.1016/j.rmb.2016.06.017. |
| 1 | Native | Northern America | Northern Mexico | Mexico | Durango | | Villaseñor, J. L. 2016. Checklist of the native vascular plants of Mexico. Rev. Mex. Biodivers. 87:559-902. DOI: 10.1016/j.rmb.2016.06.017. |
| 1 | Native | Northern America | Northern Mexico | Mexico | Nuevo León | | Villaseñor, J. L. 2016. Checklist of the native vascular plants of Mexico. Rev. Mex. Biodivers. 87:559-902. DOI: 10.1016/j.rmb.2016.06.017. |
| 1 | Native | Northern America | Northern Mexico | Mexico | San Luis Potosí | | Villaseñor, J. L. 2016. Checklist of the native vascular plants of Mexico. Rev. Mex. Biodivers. 87:559-902. DOI: 10.1016/j.rmb.2016.06.017. |
| 1 | Native | Northern America | Southern Mexico | Mexico | Aguascalientes | | Villaseñor, J. L. 2016. Checklist of the native vascular plants of Mexico. Rev. Mex. Biodivers. 87:559-902. DOI: 10.1016/j.rmb.2016.06.017. |
| 1 | Native | Northern America | Southern Mexico | Mexico | Chiapas | | Villaseñor, J. L. 2016. Checklist of the native vascular plants of Mexico. Rev. Mex. Biodivers. 87:559-902. DOI: 10.1016/j.rmb.2016.06.017. |
| 1 | Native | Northern America | Southern Mexico | Mexico | Colima | | Villaseñor, J. L. 2016. Checklist of the native vascular plants of Mexico. Rev. Mex. Biodivers. 87:559-902. DOI: 10.1016/j.rmb.2016.06.017. |
| 1 | Native | Northern America | Southern Mexico | Mexico | Guanajuato | s. | Phipps, J. B. 1997. Monograph of northern Mexican Crataegus (Rosaceae, subfam. Maloideae). Sida, Bot. Misc. 15:1-94. Note: lists as Crataegus mexicana Moç. & Sessé |
| 1 | Native | Northern America | Southern Mexico | Mexico | Guerrero | | Villaseñor, J. L. 2016. Checklist of the native vascular plants of Mexico. Rev. Mex. Biodivers. 87:559-902. DOI: 10.1016/j.rmb.2016.06.017. |
| 1 | Native | Northern America | Southern Mexico | Mexico | Hidalgo | | Phipps, J. B. 1997. Monograph of northern Mexican Crataegus (Rosaceae, subfam. Maloideae). Sida, Bot. Misc. 15:1-94. Note: lists as Crataegus mexicana Moç. & Sessé |
| 1 | Native | Northern America | Southern Mexico | Mexico | Jalisco | | Villaseñor, J. L. 2016. Checklist of the native vascular plants of Mexico. Rev. Mex. Biodivers. 87:559-902. DOI: 10.1016/j.rmb.2016.06.017. |
| 1 | Native | Northern America | Southern Mexico | Mexico | México | | Villaseñor, J. L. 2016. Checklist of the native vascular plants of Mexico. Rev. Mex. Biodivers. 87:559-902. DOI: 10.1016/j.rmb.2016.06.017. |
| 1 | Native | Northern America | Southern Mexico | Mexico | Michoacán de Ocampo | | Villaseñor, J. L. 2016. Checklist of the native vascular plants of Mexico. Rev. Mex. Biodivers. 87:559-902. DOI: 10.1016/j.rmb.2016.06.017. |
| 1 | Native | Northern America | Southern Mexico | Mexico | Oaxaca | | Villaseñor, J. L. 2016. Checklist of the native vascular plants of Mexico. Rev. Mex. Biodivers. 87:559-902. DOI: 10.1016/j.rmb.2016.06.017. |
| 1 | Native | Northern America | Southern Mexico | Mexico | Puebla | | Villaseñor, J. L. 2016. Checklist of the native vascular plants of Mexico. Rev. Mex. Biodivers. 87:559-902. DOI: 10.1016/j.rmb.2016.06.017. |
| 1 | Native | Northern America | Southern Mexico | Mexico | Querétaro | | Villaseñor, J. L. 2016. Checklist of the native vascular plants of Mexico. Rev. Mex. Biodivers. 87:559-902. DOI: 10.1016/j.rmb.2016.06.017. |
| 1 | Native | Northern America | Southern Mexico | Mexico | Veracruz de Ignacio de la Llave | | Villaseñor, J. L. 2016. Checklist of the native vascular plants of Mexico. Rev. Mex. Biodivers. 87:559-902. DOI: 10.1016/j.rmb.2016.06.017. |
| 1 | Native | Southern America | Central America | Guatemala | | | |
| 2 | Cultivated | Africa | Southern Africa | South Africa | | | Núñez-Colín, C. A. et al. 2008. Variability of three regional sources of germplasm of tejocote (Crataegus species) from central and southern Mexico. Genet. Resources Crop Evol. 55:1159-1165. DOI: 10.1007/s10722-008-9316-z. |
| 2 | Cultivated | Northern America | | Mexico | | | Núñez-Colín, C. A. et al. 2008. Variability of three regional sources of germplasm of tejocote (Crataegus species) from central and southern Mexico. Genet. Resources Crop Evol. 55:1159-1165. DOI: 10.1007/s10722-008-9316-z. |
| 2 | Cultivated | Northern America | Southwestern U.S.A. | United States | Arizona | | Núñez-Colín, C. A. et al. 2008. Variability of three regional sources of germplasm of tejocote (Crataegus species) from central and southern Mexico. Genet. Resources Crop Evol. 55:1159-1165. DOI: 10.1007/s10722-008-9316-z. |
| 2 | Cultivated | Northern America | Southwestern U.S.A. | United States | California | | Núñez-Colín, C. A. et al. 2008. Variability of three regional sources of germplasm of tejocote (Crataegus species) from central and southern Mexico. Genet. Resources Crop Evol. 55:1159-1165. DOI: 10.1007/s10722-008-9316-z. |
| 2 | Cultivated | Southern America | Central America | Costa Rica | | | Núñez-Colín, C. A. et al. 2008. Variability of three regional sources of germplasm of tejocote (Crataegus species) from central and southern Mexico. Genet. Resources Crop Evol. 55:1159-1165. DOI: 10.1007/s10722-008-9316-z. |
| 2 | Cultivated | Southern America | Central America | Guatemala | | | Núñez-Colín, C. A. et al. 2008. Variability of three regional sources of germplasm of tejocote (Crataegus species) from central and southern Mexico. Genet. Resources Crop Evol. 55:1159-1165. DOI: 10.1007/s10722-008-9316-z. |
| 2 | Cultivated | Southern America | Western South America | Ecuador | | | Núñez-Colín, C. A. et al. 2008. Variability of three regional sources of germplasm of tejocote (Crataegus species) from central and southern Mexico. Genet. Resources Crop Evol. 55:1159-1165. DOI: 10.1007/s10722-008-9316-z. |
| 2 | Cultivated | Southern America | Western South America | Peru | | | Núñez-Colín, C. A. et al. 2008. Variability of three regional sources of germplasm of tejocote (Crataegus species) from central and southern Mexico. Genet. Resources Crop Evol. 55:1159-1165. DOI: 10.1007/s10722-008-9316-z. |