| Classification | Euphorbiaceae: Euphorbia |
| Classification 1 | Euphorbiaceae: Chamaesyce |
| Classification 2 | Euphorbiaceae: Euphorbia |
| Harvard University Herbaria Barcode(s) | 00047668 |
| Type Status | Isosyntype |
| Collector | C. Wright |
| Collector number | 1838 |
| Country | United States of America |
| State | Texas |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Texas: Pecos County |
| Locality | N. Mex. [valley of the Pecos] |
| Date Collected | 1851-06-03 |
| Habitat | [Sides of rocky ridges] |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/076ef9dd-14a5-4d5b-a0f5-a29f1580d3f2 |
| Harvard University Herbaria Barcode | 00047668 |
| Herbarium | GH |
| Family | Euphorbiaceae |
| Determination | Euphorbia exstipulata Engelmann |
| Determination Remarks | [is label name] |
| Family | Euphorbiaceae |
| Determination | Euphorbia exstipulata Engelmann |
| Determined by | M. J. Huft (OKL) |
| Date Determined | 1980 |
| Family | Euphorbiaceae |
| Determination | Chamaesyce exstipulata (Engelmann) Rydberg |
| Determination Remarks | [is Current name] |
| Family | Euphorbiaceae |
| Type Status | Isosyntype |
| Isosyntype of | Euphorbia exstipulata Engelmann |
| Verified by | W. T. Kittredge (A/GH) |
| Date Determined | 2008 |
| Taxon Reference | (for Euphorbia exstipulata Engelmann) Rep. U.S. Mex. Bound., Bot. 1859. 189. |
| Sex | not determined |
| Phenology | NotDetermined |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
| Item Remarks | Mounted with Wright 1833 (barcode 47667) |
