| Classification | Asteraceae: Riddellia |
| Classification 1 | Asteraceae: Psilostrophe |
| Harvard University Herbaria Barcode(s) | 00257531 |
| Collector | Josiah Gregg |
| Collector number | 34 |
| Country | Mexico |
| State | Coahuila |
| Geography | North America: North America (CA, US, MX) (Region): Mexico: Coahuila |
| Locality | Saltillo. Near Ojo de Sant Bernardo |
| Date Collected | 1847-05-06 - 1849 |
| Habitat | Dry gravelly mountain pass |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/3f53a372-e9d2-45f3-af82-469a83227526 |
| Harvard University Herbaria Barcode | 00257531 |
| Herbarium | GH |
| Family | Asteraceae |
| Determination | Riddellia arachnoidea A. Gray |
| Determination Remarks | [is label name] |
| Family | Asteraceae |
| Determination | Psilostrophe gnaphalodes de Candolle |
| Determined by | C.B. Brown |
| Date Determined | 1944 |
| Family | Asteraceae |
| Determination | Psilostrophe gnaphalodes de Candolle |
| Determined by | R.C. Brown |
| Date Determined | 1973 |
| Determination Remarks | [is Current name] |
| Sex | not determined |
| Phenology | Flower |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
