| Classification | Rosaceae: Crataegus |
| Harvard University Herbaria Barcode(s) | 00017936 |
| Type Status | Holotype |
| Collector | E. J. Palmer |
| Collector number | 20382 |
| Country | United States of America |
| State | Missouri |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Missouri: Marion County: Hannibal |
| Locality | Near Hannibal, Marion County, Mo. |
| Date Collected | 1921-09-07 |
| Habitat | Upland pastures - thickets |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/3602fd1e-868e-4084-ad79-fbd2f8d7f0a7 |
| Harvard University Herbaria Barcode | 00017936 |
| Herbarium | A |
| Family | Rosaceae |
| Type Status | Holotype |
| Holotype of | Crataegus hannibalensis E. J. Palmer |
| Verified by | D. E. Boufford |
| Taxon Reference | (for Crataegus hannibalensis E. J. Palmer) J. Arnold Arbor. 1935. 16: 353. |
| Family | Rosaceae |
| Type Status | Holotype |
| Holotype of | Crataegus hannibalensis E. J. Palmer |
| Taxon Reference | (for Crataegus hannibalensis E. J. Palmer) J. Arnold Arbor. 1935. 16: 353. |
| Family | Rosaceae |
| Determination | Crataegus crus-galli Linnaeus |
| Determined by | J. B. Phipps (UWO) & G. Yatskievych (MO) |
| Date Determined | 2003 |
| Determination Remarks | [current name] |
| Sex | not determined |
| Phenology | Fruit |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
