| Classification | Hydrophyllaceae: Eriodictyon | 
| Harvard University Herbaria Barcode(s) | 00112968 | 
| Type Status | Isosyntype | 
| Collector | L. Abrams & E. A. McGregor | 
| Collector number | 322 | 
| Country | United States of America | 
| State | California | 
| Geography | North America: North America (CA, US, MX) (Region): United States of America: California: Los Angeles County | 
| Locality | Oakgrove Canyon, Liebre Mountains, 3500-4000 feet | 
| Date Collected | 1908-06-19 - 1908-06-21 | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/7fa1c1c0-9aa7-4607-bc8d-ac26979d8c3b | 
| Harvard University Herbaria Barcode | 00112968 | 
| Herbarium | GH | 
| Family | Hydrophyllaceae | 
| Type Status | Isosyntype | 
| Isosyntype of | Eriodictyon crassifolium subsp. grayanum Brand | 
| Taxon Reference | (for  Eriodictyon crassifolium subsp. grayanum Brand) Pflanzenr. [Engler] 1913. 4, Fam. 251: 139. | 
| Family | Hydrophyllaceae | 
| Determination | Eriodictyon crassifolium var. nigrescens Brand | 
| Determined by | J. F. Macbride | 
| Determination Remarks | [current name] | 
| Sex | not determined | 
| Phenology | Flower | 
| Preparation Type | Sheet | 
| Preparation Method | Pressed |