| Classification | Euphorbiaceae: Euphorbia |
| Harvard University Herbaria Barcode(s) | 00047768 |
| Type Status | Isotype |
| Collector | C. A. Purpus |
| Collector number | 4599 |
| Country | Mexico |
| State | Durango |
| Geography | North America: North America (CA, US, MX) (Region): Mexico: Durango |
| Locality | Cerro de San Ignacio |
| Date Collected | 1910-07-** |
| Container | Flora of Mexico |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/6f25da24-c881-4ae5-9682-214dd20b2c4f |
| Harvard University Herbaria Barcode | 00047768 |
| Herbarium | GH |
| Family | Euphorbiaceae |
| Determination | Euphorbia collina Brandegee |
| Determination Remarks | [is label name] |
| Family | Euphorbiaceae |
| Determination | Euphorbia arizonica Engelmann |
| Determined by | L. C. Wheeler |
| Date Determined | 1937 |
| Determination Remarks | [is Current name] |
| Family | Euphorbiaceae |
| Type Status | Isotype |
| Isotype of | Euphorbia collina Brandegee |
| Taxon Reference | (for Euphorbia collina Brandegee) Univ. Calif. Publ. Bot. 1911. 4: 184. |
| Sex | not determined |
| Phenology | NotDetermined |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
