| Classification | Rosaceae: Crataegus | 
| Barcode(s) | 00003124 | 
| Type Status | Syntype | 
| Collector | C. S. Sargent | 
| Country | United States of America | 
| State | Massachusetts | 
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Massachusetts: Middlesex County: Lowell | 
| Locality | Banks of the Merrimack River | 
| Date Collected | 1902-09-13 | 
| Remarks | = Crataegus macrosperma Ashe, det. E. J. Palmer, 1945 | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/9fcda514-c20d-4f07-a10c-b9e97e58e4c1 | 
| Harvard University Herbaria Barcode | 00003124 | 
| Herbarium | A | 
| Family | Rosaceae | 
| Type Status |  Syntype | 
| Syntype of |  Crataegus damei Sargent | 
| Verified by | D. E. Boufford | 
| Taxon Reference | (for  Crataegus damei Sargent) Rhodora 1905. 7: 200. | 
| Family | Rosaceae | 
| Determination |  Crataegus macrosperma Ashe | 
| Determined by | E. J. Palmer | 
| Determination Remarks |  [current name] | 
| Sex | not determined | 
| Phenology | Fruit | 
| Preparation Type | Sheet | 
| Preparation Method | Pressed |