| Classification | Rosaceae: Crataegus | 
| Barcode(s) | 00017295 | 
| Type Status | Syntype | 
| Collector | J. A. Shafer-1 | 
| Collector number | 21 | 
| Country | United States of America | 
| State | Pennsylvania | 
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Pennsylvania: Allegheny County: Pittsburgh | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/ceee63ca-3d92-47f1-9579-25f1ffb237f3 | 
| Harvard University Herbaria Barcode | 00017295 | 
| Herbarium | A | 
| Family | Rosaceae | 
| Type Status |  Syntype | 
| Syntype of |  Crataegus tanuphylla Sargent | 
| Verified by | D. E. Boufford | 
| Determination Remarks |  [filed under] | 
| Taxon Reference | (for  Crataegus tanuphylla Sargent) Proc. Acad. Nat. Sci. Philadelphia 1910. 62: 247. | 
| Sex | not determined | 
| Phenology | Fruit | 
| Preparation Type | Sheet | 
| Preparation Method | Pressed |