| Classification | Euphorbiaceae: Euphorbia |
| Harvard University Herbaria Barcode(s) | 00063321 |
| Type Status | Isolectotype |
| Collector | C. Wright |
| Collector number | 1837 |
| Country | United States of America |
| State | Texas |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Texas: Val Verde County |
| Locality | N. Mex. [big bend of the San Pedro (Devils River)] |
| Date Collected | 1851-05-22 |
| Habitat | [Stony hills] |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/5a3d7ad1-395b-4002-8cac-011b2bd6d993 |
| Harvard University Herbaria Barcode | 00063321 |
| Herbarium | GH |
| Family | Euphorbiaceae |
| Determination | Euphorbia dentata var. rigida Engelmann |
| Determination Remarks | [is label name] |
| Family | Euphorbiaceae |
| Determination | Euphorbia dentata Michaux |
| Determined by | M. H. Mayfield (LL/TEX) |
| Date Determined | 1995-10-** |
| Determination Remarks | [is Current name] |
| Annotation Text | [bottom plant] and upper right side |
| Family | Euphorbiaceae |
| Determination | Euphorbia davidii Subils |
| Determined by | M. H. Mayfield (TEX) |
| Date Determined | 1995-10-** |
| Determination Remarks | [is Current name] |
| Annotation Text | [upper left plant only] |
| Family | Euphorbiaceae |
| Type Status | Isolectotype |
| Isolectotype of | Euphorbia dentata var. rigida Engelmann |
| Verified by | M. H. Mayfield (TEX) |
| Date Determined | 1996-04-11 |
| Determination Remarks | only the above plant + upper rightt [no 63322 publication given for lectotypification] |
| Taxon Reference | (for Euphorbia dentata var. rigida Engelmann) Rep. U.S. Mex. Bound., Bot. 1859. 190. |
| Sex | not determined |
| Phenology | Fruit |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
