| Classification | Poaceae: Bouteloua | 
| Harvard University Herbaria Barcode(s) | 00023210 | 
| Type Status | Type | 
| Collector | J. T. Rothrock | 
| Collector number | 691 | 
| Country | United States of America | 
| State | Arizona | 
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Arizona | 
| Locality | Sannoita Valley | 
| Date Collected | 1874 | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/ecd86507-6804-43a4-8328-2431b02f47ef | 
| Harvard University Herbaria Barcode | 00023210 | 
| Herbarium | GH | 
| Family | Poaceae | 
| Type Status | Type | 
| Type of | Bouteloua polystachya var. major Vasey | 
| Determination Remarks | [filed under] | 
| Taxon Reference | (for  Bouteloua polystachya var. major Vasey) Rep. U.S. Geogr. Surv., Wheeler 1878. 6: 287. | 
| Sex | not determined | 
| Phenology | NotDetermined | 
| Preparation Type | Sheet | 
| Preparation Method | Pressed |