| Classification | Asteraceae: Erigeron |
| Harvard University Herbaria Barcode(s) | 00006873 |
| Type Status | Isotype |
| Collector | C. A. Purpus |
| Collector number | 5020 |
| Country | Mexico |
| State | San Luis Potosí |
| Geography | North America: North America (CA, US, MX) (Region): Mexico: San Luis Potosí |
| Locality | Minas de San Rafael |
| Date Collected | 1911-07-** |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/f0e203bc-cd29-4aea-ae44-fb0e213a7896 |
| Harvard University Herbaria Barcode | 00006873 |
| Herbarium | GH |
| Family | Asteraceae |
| Type Status | Isotype |
| Isotype of | Erigeron unguiphyllus G. L. Nesom |
| Verified by | G. Nesom |
| Date Determined | 1984 |
| Taxon Reference | (for Erigeron unguiphyllus G. L. Nesom) Madroño 1981. 28: 141-142. |
| Family | Asteraceae |
| Determination | Affine Erigeron gypsophilus B. L. Turner |
| Determined by | G. Nesom |
| Date Determined | 1978 |
| Determination Remarks | [current name] |
| Family | Asteraceae |
| Determination | Erigeron modestus A. Gray |
| Determination Remarks | [label name] |
| Sex | not determined |
| Phenology | Flower |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
