| Classification | Loasaceae: Mentzelia | 
| Harvard University Herbaria Barcode(s) | 00106791 | 
| Type Status | Isotype | 
| Collector | C. Wright | 
| Collector number | 214 | 
| Country | United States of America | 
| Geography | North America: North America (CA, US, MX) (Region): United States of America | 
| Locality | Western Texas to El Paso, New Mexico [30 or 40 miles east of the Rio Grande] | 
| Date Collected | 1849-08-** | 
| Habitat | [Mountain valleys] | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/318dcff4-4785-4333-878f-3e7878fac8df | 
| Harvard University Herbaria Barcode | 00106791 | 
| Herbarium | GH | 
| Family | Loasaceae | 
| Type Status | Isotype | 
| Isotype of | Mentzelia pumila var. humilis Urban & Gilg | 
| Taxon Reference | (for  Mentzelia pumila var. humilis Urban & Gilg) Nova Acta Acad. Caes. Leop.-Carol. German. Nat. Cur. 1900. 76: 93. | 
| Family | Loasaceae | 
| Determination | Mentzelia humilis (Urban & Gilg) Darlington | 
| Determination Remarks | Mentzelia humilis (A. Gray) Darlington, det. Thompson & Zavortink, 1968 [current name] | 
| Sex | not determined | 
| Phenology | Fruit | 
| Preparation Type | Sheet | 
| Preparation Method | Pressed |