| Classification | Euphorbiaceae: Euphorbia |
| Harvard University Herbaria Barcode(s) | 00246266 |
| Collector | I. M. Johnston |
| Collector number | 4148 |
| Country | Mexico |
| Geography | North America: North America (CA, US, MX) (Region): Mexico |
| Locality | The Gulf of California Carmen Island Saltworks |
| Date Collected | 1921-06-16 |
| Habitat | Abundant on dunes |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/b63c91b6-c92e-480c-953b-06ab3f94cf7d |
| Harvard University Herbaria Barcode | 00246266 |
| Herbarium | GH |
| Previous ownership | ex California Academy of Sciences |
| Family | Euphorbiaceae |
| Determination | Euphorbia polycarpa Bentham |
| Determination Remarks | [is label name] |
| Family | Euphorbiaceae |
| Determination | Euphorbia polycarpa var. johnstonii L. C. Wheeler |
| Determined by | L. C. Wheeler |
| Date Determined | 1936 |
| Annotation Text | Louis C. Wheeler |
| Family | Euphorbiaceae |
| Determination | Euphorbia polycarpa var. johnstonii L. C. Wheeler |
| Determined by | V. W. Steinman (RSA) |
| Date Determined | 2005 |
| Determination Remarks | [is Current name] |
| Annotation Text | Rancho Santa Ana Botanic Garden |
| Sex | not determined |
| Phenology | Flower |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
