| Classification | Asteraceae: Dyssodia | 
| Classification 1 | Asteraceae: Aciphyllaea | 
| Classification 2 | Asteraceae: Hymenatherum | 
| Harvard University Herbaria Barcode(s) | 00247202 | 
| Collector | J. Gregg | 
| Collector number | 13 | 
| Country | Mexico | 
| State | Coahuila | 
| Geography | North America: North America (CA, US, MX) (Region): Mexico: Coahuila: Saltillo | 
| Locality | near Saltillo March 1847 and Near Parras 11 April | 
| Date Collected | 1847 | 
| Habitat | high valley | 
| Vernacular Name | Yerba de San Nicolas | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/2d4dbba8-2513-42d3-b59e-ca47ae71eb5b | 
| Harvard University Herbaria Barcode | 00247202 | 
| Herbarium | GH | 
| Family | Asteraceae | 
| Determination | Dyssodia acerosa de Candolle | 
| Determined by | J. L. Strother (TEX) | 
| Date Determined | 1967 | 
| Determination Remarks | [current name] | 
| Family | Asteraceae | 
| Determination | Dyssodia acerosa de Candolle | 
| Determined by | B. L. Robinson | 
| Date Determined | 1911 | 
| Family | Asteraceae | 
| Determination | Aciphyllaea acerosa A. Gray | 
| Family | Asteraceae | 
| Determination | Hymenatherum acerosum A. Gray | 
| Sex | not determined | 
| Phenology | NotDetermined | 
| Preparation Type | Sheet | 
| Preparation Method | Pressed | 
| Item Remarks | [Mounted with a similar collection by Gregg in February of 1847 (barcode 247185), Berlandier type collection (barcode 6481) and a non-type collection of Parry and Palmer 513 (barcode 247184)] |