| Classification | Rosaceae: Crataegus |
| Harvard University Herbaria Barcode(s) | 00017133 |
| Type Status | Syntype |
| Collector | J. J. Davis |
| Collector number | 56 |
| Country | United States of America |
| State | Missouri |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Missouri: Marion County: Hannibal |
| Date Collected | 1909-05-13 |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/6babf530-2f7d-4db9-a540-3a8f9134afd1 |
| Harvard University Herbaria Barcode | 00017133 |
| Herbarium | A |
| Family | Rosaceae |
| Determination | Crataegus viridis Linnaeus |
| Determined by | Ernest J. Palmer |
| Date Determined | 1947-05-05 |
| Family | Rosaceae |
| Determination | Crataegus viridis var. ovata (Sargent) E. J. Palmer |
| Determined by | J. B. Phipps (UWO) & G. Yatskievych (MO) |
| Date Determined | 2003 |
| Determination Remarks | [is Current name] |
| Family | Rosaceae |
| Type Status | Syntype |
| Syntype of | Crataegus pechiana Sargent |
| Verified by | D. E. Boufford |
| Date Determined | 1985 |
| Taxon Reference | (for Crataegus pechiana Sargent) Rep. (Annual) Missouri Bot. Gard. 1912. 22: 78. |
| Family | Rosaceae |
| Type Status | Syntype |
| Syntype of | Crataegus pechiana Sargent |
| Verified by | J. B. Phipps (UWO) & G. Yatskievych (MO) |
| Date Determined | 2003 |
| Taxon Reference | (for Crataegus pechiana Sargent) Rep. (Annual) Missouri Bot. Gard. 1912. 22: 78. |
| Sex | not determined |
| Phenology | Flower |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
