| Classification | Cyperaceae: Cladium | 
| Barcode(s) | 00027598 | 
| Type Status | Holotype | 
| Collector | W. H. Brewer | 
| Collector number | 105 | 
| Country | United States of America | 
| State | California | 
| Geography | North America: North America (CA, US, MX) (Region): United States of America: California | 
| Locality | San Gabriel | 
| Date Collected | 1861-01-03 | 
| Remarks | = Cladium californicum (S. Watson) O'Neill (det. A. Espejo & A. R. Lopez Ferrari, 1994) | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/7af1eb25-2fbc-49e7-a21a-66357bdd1c92 | 
| Harvard University Herbaria Barcode | 00027598 | 
| Herbarium | GH | 
| Family | Cyperaceae | 
| Type Status |  Holotype | 
| Holotype of |  Cladium mariscus var. californicum S. Watson | 
| Verified by | A. Espejo & A. R. Lopez Ferrari | 
| Taxon Reference | (for  Cladium mariscus var. californicum S. Watson) Bot. California 1880. 2: 224. | 
| Family | Cyperaceae | 
| Determination |  Cladium californicum (S. Watson) O'Neill | 
| Determined by | A. Espejo & A. R. Lopez Ferrari | 
| Determination Remarks |  [current name] | 
| Sex | not determined | 
| Phenology | NotDetermined | 
| Preparation Type | Sheet | 
| Preparation Method | Pressed |