| Classification | Euphorbiaceae: Euphorbia |
| Barcode(s) | 00047733 |
| Type Status | Holotype |
| Collector | V. Rattan |
| Collector number | 57 |
| Country | United States of America |
| State | California |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: California: Colusa County |
| Locality | Stony Creek, Coast Mountains north of San Francisco |
| Date Collected | 1884-06-** |
| Container | California Flora |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/142cfd28-a694-4478-886d-2c80e361a550 |
| Harvard University Herbaria Barcode | 00047733 |
| Herbarium | GH |
| Family | Euphorbiaceae |
| Type Status | Holotype |
| Holotype of | Euphorbia rattanii S. Watson |
| Taxon Reference | (for Euphorbia rattanii S. Watson) Proc. Amer. Acad. Arts 1885. 20: 372. |
| Family | Euphorbiaceae |
| Determination | Euphorbia ocellata var. rattani (S. Watson) L. C. Wheeler |
| Determined by | L. C. Wheeler |
| Date Determined | 1936 |
| Determination Remarks | [current name] |
| Family | Euphorbiaceae |
| Determination | Euphorbia rattanii S. Watson |
| Determination Remarks | [label name] |
| Annotation Text | n. sp. |
| Sex | not determined |
| Phenology | Flower |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
