| Classification | Poaceae: Muhlenbergia | 
| Harvard University Herbaria Barcode(s) | 00061272 | 
| Type Status | Isotype | 
| Collector | F. W. Pennell | 
| Collector number | 18972 | 
| Country | Mexico | 
| State | Durango | 
| Geography | North America: North America (CA, US, MX) (Region): Mexico: Durango | 
| Locality | Along river, west of El Salto, 2600-2650 m. | 
| Date Collected | 1934-09-01 | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/7e4fe7f7-2528-48eb-909f-3fd1dfd02edf | 
| Harvard University Herbaria Barcode | 00061272 | 
| Herbarium | GH | 
| Family | Poaceae | 
| Type Status | Isotype | 
| Isotype of | Muhlenbergia subaristata Swallen | 
| Verified by | C. G. Reeder | 
| Determination Remarks | [filed under] | 
| Taxon Reference | (for  Muhlenbergia subaristata Swallen) J. Wash. Acad. Sci. 1936. 26(5): 208. | 
| Sex | not determined | 
| Phenology | NotDetermined | 
| Preparation Type | Sheet | 
| Preparation Method | Pressed |