| Name | Crataegus definita Sargent | 
| Authorship | Sargent | 
| Rank | Species | 
| NomenclaturalStatus | NomLeg | 
| Placed in | Crataegus Linnaeus | 
| GUID | urn:lsid:ipni.org:names:68171-2 | 
| Citation | 1905 Proc. Acad. Nat. Sci. Philadelphia 57: 647 | 
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Crataegus definita Sargent | 
| Identification made in | [no date] (2) |