| Classification | Asteraceae: Achaetogeron |
| Classification 1 | Asteraceae: Erigeron |
| Harvard University Herbaria Barcode(s) | 00000554 |
| Type Status | Holotype |
| Collector | Edw. Palmer |
| Collector number | 255 |
| Country | Mexico |
| State | Chihuahua |
| Geography | North America: North America (CA, US, MX) (Region): Mexico: Chihuahua |
| Locality | South-Western Chihuahua |
| Date Collected | 1885-11-** |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/92c8a441-1c81-40d1-93f4-120303bf9474 |
| Harvard University Herbaria Barcode | 00000554 |
| Herbarium | GH |
| Family | Asteraceae |
| Type Status | Holotype |
| Holotype of | Achaetogeron affinis A. Gray |
| Verified by | G. L. Nesom (NCU) |
| Date Determined | 1978 |
| Taxon Reference | (for Achaetogeron affinis A. Gray) Proc. Amer. Acad. Arts 1886. 21: 386. |
| Family | Asteraceae |
| Type Status | Holotype |
| Holotype of | Achaetogeron affinis A. Gray |
| Verified by | D. E. Boufford (A) |
| Taxon Reference | (for Achaetogeron affinis A. Gray) Proc. Amer. Acad. Arts 1886. 21: 386. |
| Family | Asteraceae |
| Determination | Erigeron fraternus Greene |
| Determined by | G. L. Nesom (NCU) |
| Date Determined | 1978 |
| Determination Remarks | [current name] |
| Family | Asteraceae |
| Determination | Achaetogeron affinis A. Gray |
| Determined by | E. L. Larsen |
| Date Determined | 1933-03-01 |
| Family | Asteraceae |
| Determination | Achaetogeron affinis A. Gray |
| Determination Remarks | [label name] |
| Sex | not determined |
| Phenology | NotDetermined |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
