| Classification | Euphorbiaceae: Euphorbia |
| Harvard University Herbaria Barcode(s) | 00267491 |
| Type Status | Isosyntype |
| Collector | C. Wright |
| Country | United States of America |
| State | Texas |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Texas |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/05785add-7a96-4bcc-9261-a2c06a6db13a |
| Harvard University Herbaria Barcode | 00267491 |
| Herbarium | GH |
| Family | Euphorbiaceae |
| Determination | Euphorbia tetrapora Engelmann |
| Determination Remarks | [pencil annotation on sheet] |
| Family | Euphorbiaceae |
| Determination | Euphorbia arkansana Engelmann & A. Gray |
| Determined by | J. B. S. Norton |
| Date Determined | 1899-05-20 |
| Annotation Text | J.B.S.N. [mixed collection. = Euphorbia spathulata Lam.] |
| Family | Euphorbiaceae |
| Determination | Euphorbia tetrapora Engelmann |
| Determined by | J. B. S. Norton |
| Date Determined | 1899-05-20 |
| Determination Remarks | [is Current name] |
| Annotation Text | J.B.S.N. [mixed collection] |
| Family | Euphorbiaceae |
| Type Status | Isosyntype |
| Isosyntype of | Euphorbia tetrapora Engelmann |
| Verified by | W. T. Kittredge (A/GH) |
| Date Determined | 2008 |
| Taxon Reference | (for Euphorbia tetrapora Engelmann) Rep. U.S. Mex. Bound., Bot. 1859. 191. |
| Sex | not determined |
| Phenology | NotDetermined |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
| Item Remarks | [mounted with Isosyntype of Euphorbia tetrapora Engelm., Hale s.n. (barcode 267490)] |
