| Classification | Plantaginaceae: Penstemon | 
| Harvard University Herbaria Barcode(s) | 01801099 | 
| Collector | H. N. Patterson | 
| Collector number | 258 | 
| Country | United States of America | 
| State | Colorado | 
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Colorado | 
| Locality | in the valley near Empire. | 
| Date Collected | 1892 | 
| Verbatim Elevation | about 8,500 ft. | 
| Habitat | Dry places | 
| Container | Colorado Flora. Mountains about the head waters of Clear Creek | 
| Project | US and Canada - Mass Digitization | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/937be0b0-2199-48bd-8482-e5026de39a7b | 
| Harvard University Herbaria Barcode | 01801099 | 
| Herbarium | GH | 
| Family | Plantaginaceae | 
| Determination | Penstemon unilateralis Rydberg | 
| Determined by | Pennell, Francis Whittier | 
| Date Determined | 1930 | 
| Determination Remarks | [filed under] [current name] | 
| Sex | not determined | 
| Phenology | NotDetermined | 
| Preparation Type | Sheet | 
| Preparation Method | Pressed |