| Barcode(s) | 00030153 | 
| Type Status | Isotype | 
| Collector | D. Douglas | 
| Country | United States of America | 
| State | California | 
| Geography | North America: North America (CA, US, MX) (Region): United States of America: California | 
| Date Collected | 1833 | 
| Remarks | = Trillium chloropetalum (Torr.) Howell var. giganteum (Hook. & Arn.) Munz (det. J. D. Freeman, 1968), see also Brittonia 27: 53. 1975 | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/6bd61d8e-e2fd-4af2-9b5d-ecafefed03f2 | 
| Harvard University Herbaria Barcode | 00030153 | 
| Herbarium | GH | 
| Type Status |  Isotype | 
| Isotype of |  Trillium sessile var. giganteum Hooker & Arnott | 
| Taxon Reference | (for  Trillium sessile var. giganteum Hooker & Arnott) Bot. Beechey Voy. 1840. 402. | 
| Determination |  Trillium chloropetalum var. giganteum (Hooker & Arnott) Munz | 
| Determined by | J. D. Freeman | 
| Determination Remarks |  [current name] | 
| Sex | not determined | 
| Phenology | Flower | 
| Preparation Type | Sheet | 
| Preparation Method | Pressed |