| Classification | Asteraceae: Achaetogeron |
| Classification 1 | Asteraceae: Erigeron |
| Classification 2 | Asteraceae: Achaetogeron |
| Harvard University Herbaria Barcode(s) | 00000561 |
| Type Status | Holotype |
| Collector | C. G. Pringle |
| Collector number | 303 (103 IN PROTOLOGUE) |
| Country | Mexico |
| State | Chihuahua |
| Geography | North America: North America (CA, US, MX) (Region): Mexico: Chihuahua |
| Locality | Rocky hills near Chihuahua |
| Date Collected | 1885-10-19 |
| Habitat | Cool grassy slopes |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/1674b530-1edc-4e9f-bcfa-c12db00d1d71 |
| Harvard University Herbaria Barcode | 00000561 |
| Herbarium | GH |
| Family | Asteraceae |
| Determination | Achaetogeron pinnatifidus A. Gray |
| Determination Remarks | [is label name] |
| Annotation Text | Achaetogeron pinnatifidum, Gray, n. [new] sp. [species] ['m' in 'pinnatifidum' is crossed out and marked with 's'] Published as #103 [marked in pencil] |
| Family | Asteraceae |
| Determination | Erigeron chihuahuanus Greene |
| Family | Asteraceae |
| Determination | Erigeron wislizenii (A. Gray) Greene |
| Determined by | G. Nesom |
| Date Determined | 1978 |
| Determination Remarks | [is Current name] |
| Family | Asteraceae |
| Type Status | Holotype |
| Holotype of | Achaetogeron pinnatifidus A. Gray |
| Verified by | G. Nesom (NCU) |
| Date Determined | 1978 |
| Taxon Reference | (for Achaetogeron pinnatifidus A. Gray) Proc. Amer. Acad. Arts 1886. 21: 386. |
| Family | Asteraceae |
| Type Status | Holotype |
| Holotype of | Achaetogeron pinnatifidus A. Gray |
| Verified by | D. E. Boufford |
| Date Determined | 1983 |
| Taxon Reference | (for Achaetogeron pinnatifidus A. Gray) Proc. Amer. Acad. Arts 1886. 21: 386. |
| Sex | not determined |
| Phenology | Flower |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
| Item Remarks | [published as no. 103] |
