| Classification | Rosaceae: Crataegus |
| Harvard University Herbaria Barcode(s) | 00016413 |
| Type Status | Possible Type, Possible Syntype |
| Collector | J. B. S. Norton |
| Collector number | 13 |
| Country | United States of America |
| State | Illinois |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Illinois: Saint Clair County: East Saint Louis |
| Date Collected | 1900-05-05 |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/377eeb8b-7ada-4a65-a5e3-a4b3e13b64fe |
| Harvard University Herbaria Barcode | 00016413 |
| Herbarium | A |
| Family | Rosaceae |
| Type Status | Possible Type |
| Possible Type of | Crataegus erecta Sargent |
| Verified by | D. E. Boufford |
| Date Determined | 1983 |
| Determination Remarks | Date cited in protologue is 12 May 1900. |
| Taxon Reference | (for Crataegus erecta Sargent) Bot. Gaz. 1901. 31: 218. |
| Family | Rosaceae |
| Type Status | Possible Syntype |
| Possible Syntype of | Crataegus erecta Sargent |
| Verified by | J. B. Phipps (UWO) & G. Yatskievych (MO) |
| Date Determined | 2003 |
| Determination Remarks | collection date discordant [vs. 12 May 1900] |
| Taxon Reference | (for Crataegus erecta Sargent) Bot. Gaz. 1901. 31: 218. |
| Family | Rosaceae |
| Determination | Crataegus crus-galli Linnaeus |
| Determined by | J. B. Phipps (UWO) & G. Yatskievych (MO) |
| Date Determined | 2003 |
| Determination Remarks | [current name] |
| Family | Rosaceae |
| Determination | Crataegus acutifolia Sargent |
| Determined by | Ernest J. Palmer |
| Date Determined | 1947-05-02 |
| Sex | not determined |
| Phenology | Fruit |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
