| Classification | Euphorbiaceae: Euphorbia |
| Harvard University Herbaria Barcode(s) | 00267500 |
| Type Status | Isosyntype |
| Collector | K. T. Hartweg |
| Collector number | 1950 |
| Country | United States of America |
| State | California |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: California |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/3f11b8e5-9b9c-4d92-ab2b-7b194ce1c6bb |
| Harvard University Herbaria Barcode | 00267500 |
| Herbarium | GH |
| Family | Euphorbiaceae |
| Determination | Euphorbia crenulata Engelmann |
| Determination Remarks | [pencil annotation on sheet] |
| Annotation Text | n. sp. |
| Family | Euphorbiaceae |
| Determination | Euphorbia crenulata Engelmann |
| Determined by | J. S. B. Norton |
| Date Determined | 1899-05-20 |
| Annotation Text | J.B.S.N. |
| Family | Euphorbiaceae |
| Determination | Euphorbia crenulata Engelmann |
| Determined by | L. C. Wheeler |
| Date Determined | 1936 |
| Determination Remarks | [is Current name] |
| Family | Euphorbiaceae |
| Type Status | Isosyntype |
| Isosyntype of | Euphorbia crenulata Engelmann |
| Verified by | W. T. Kittredge |
| Date Determined | 2008 |
| Taxon Reference | (for Euphorbia crenulata Engelmann) Rep. U.S. Mex. Bound., Bot. 1859. 192. |
| Sex | not determined |
| Phenology | NotDetermined |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
| Item Remarks | [mounted with non-type specimen of Mrs. E. Cooper s.n., 267501] |
