| Classification | Crataegus: Rosaceae |
| Harvard University Herbaria Barcode(s) | 00018250 |
| Type Status | Syntype |
| Collector | D. W. Beadle |
| Collector number | 24 |
| Country | Canada |
| State | Ontario |
| Geography | North America: North America (CA, US, MX) (Region): Canada: Ontario: Toronto |
| Date Collected | 1902-09-30 |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/38f8d56b-c1a1-4fde-922e-b45695743217 |
| Harvard University Herbaria Barcode | 00018250 |
| Herbarium | A |
| Family | Rosaceae |
| Type Status | Syntype |
| Syntype of | Crataegus ardua Sargent |
| Verified by | D. E. Boufford |
| Determination Remarks | [is filed under name] |
| Taxon Reference | (for Crataegus ardua Sargent) Ontario Nat. Sci. Bull. 1908. 4: 93. |
| Sex | not determined |
| Phenology | Fruit |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
