| Classification | Hydrophyllaceae: Phacelia | 
| Harvard University Herbaria Barcode(s) | 00093519 | 
| Type Status | Holotype | 
| Collector | I. M. Johnston | 
| Collector number | 8486 | 
| Country | Mexico | 
| State | Coahuila | 
| Geography | North America: North America (CA, US, MX) (Region): Mexico: Coahuila | 
| Locality | Gypsum beds on escarpment near Tanque La Luz, south end CaƱada Oscuro | 
| Date Collected | 1941-08-26 | 
| Habitat | plant confined to gypsum | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/0fbaa941-de72-4dbc-9052-3affd12765c6 | 
| Harvard University Herbaria Barcode | 00093519 | 
| Herbarium | GH | 
| Family | Hydrophyllaceae | 
| Type Status | Holotype | 
| Holotype of | Phacelia pallida I. M. Johnston | 
| Verified by | H. Henrickson (TEX-LL) | 
| Date Determined | 2009-03-** | 
| Taxon Reference | (for  Phacelia pallida I. M. Johnston) J. Arnold Arbor. 1943. 24: 97. | 
| Family | Hydrophyllaceae | 
| Determination | Phacelia pallida I. M. Johnston | 
| Determined by | N.D. Atwood | 
| Date Determined | 2002 | 
| Determination Remarks | [current name] | 
| Annotation Text | ! | 
| Family | Hydrophyllaceae | 
| Determination | Phacelia pallida I. M. Johnston | 
| Determined by | D. Atwood | 
| Date Determined | 1971 | 
| Annotation Text | Holotype | 
| Family | Hydrophyllaceae | 
| Determination | Phacelia pallida I. M. Johnston | 
| Determination Remarks | [label name] | 
| Sex | not determined | 
| Phenology | FlowerAndFruit | 
| Preparation Type | Sheet | 
| Preparation Method | Pressed |