| Classification | Euphorbiaceae: Euphorbia |
| Classification 1 | Euphorbiaceae: Chamaesyce |
| Harvard University Herbaria Barcode(s) | 00267442 |
| Type Status | Isosyntype |
| Collector | C. Wright |
| Collector number | 658 |
| Country | United States of America |
| State | Texas |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Texas: Pecos County |
| Locality | Western Texas to El Paso, New Mexico [beyond the Pecos] |
| Date Collected | 1849-08-15 |
| Habitat | [Prairies] |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/c8b599fe-7fbf-43e6-adac-bf2dcaeb06ab |
| Harvard University Herbaria Barcode | 00267442 |
| Herbarium | GH |
| Family | Euphorbiaceae |
| Type Status | Isosyntype |
| Isosyntype of | Euphorbia serrula Engelmann |
| Verified by | W. T. Kittredge (A/GH) |
| Date Determined | 2008 |
| Taxon Reference | (for Euphorbia serrula Engelmann) Rep. U.S. Mex. Bound., Bot. 1859. 188. |
| Family | Euphorbiaceae |
| Determination | Chamaesyce serrula (Engelmann) Wooton & Standley |
| Determined by | W. T. Kittredge (A/GH) |
| Date Determined | 2008 |
| Determination Remarks | [current name] |
| Family | Euphorbiaceae |
| Determination | Euphorbia serrula Engelmann |
| Determined by | L. C. Wheeler |
| Date Determined | 1939 |
| Family | Euphorbiaceae |
| Determination | Euphorbia serrula Engelmann |
| Determination Remarks | [label name] |
| Sex | not determined |
| Phenology | NotDetermined |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
| Item Remarks | [mounted with non-type specimen of Wright field #59 p.p., 2nd coll., 1851 (barcode 267443)] |