| Classification | Rosaceae: Crataegus | 
| Harvard University Herbaria Barcode(s) | 00017453 | 
| Type Status | Syntype | 
| Collector | J. Dunbar | 
| Collector number | 15 | 
| Country | Canada | 
| State | Ontario | 
| Geography | North America: North America (CA, US, MX) (Region): Canada: Ontario: Toronto | 
| Date Collected | 1906-06-04 | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/af98f5e7-0c8d-4502-9b39-8243eeb8b3d8 | 
| Harvard University Herbaria Barcode | 00017453 | 
| Herbarium | A | 
| Family | Rosaceae | 
| Type Status | Syntype | 
| Syntype of | Crataegus saeva Sargent | 
| Verified by | D. E. Boufford | 
| Determination Remarks | [filed under] | 
| Taxon Reference | (for  Crataegus saeva Sargent) Ontario Nat. Sci. Bull. 1908. 4: 91. | 
| Sex | not determined | 
| Phenology | Flower | 
| Preparation Type | Sheet | 
| Preparation Method | Pressed |