| Classification | Euphorbiaceae: Euphorbia |
| Harvard University Herbaria Barcode(s) | 00047763 |
| Type Status | Isotype |
| Collector | I. M. Johnston |
| Collector number | 4304 |
| Country | Mexico |
| State | Sonora |
| Geography | North America: North America (CA, US, MX) (Region): Mexico: Sonora |
| Locality | San Pedro Bay |
| Date Collected | 1921-07-07 |
| Habitat | on rocky cañon sides |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/d47a9f88-3bdb-4a33-a35e-f7342607aee2 |
| Harvard University Herbaria Barcode | 00047763 |
| Herbarium | GH |
| Previous ownership | ex California Academy of Sciences |
| Family | Euphorbiaceae |
| Type Status | Isotype |
| Isotype of | Euphorbia ceroderma I. M. Johnston |
| Taxon Reference | (for Euphorbia ceroderma I. M. Johnston) Proc. Calif. Acad. Sci. 1924. ser. 4, 12: 1066. |
| Family | Euphorbiaceae |
| Determination | Euphorbia ceroderma I. M. Johnston |
| Determination Remarks | [label name] [current name] |
| Sex | not determined |
| Phenology | NotDetermined |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
