| Classification | Euphorbiaceae: Euphorbia |
| Harvard University Herbaria Barcode(s) | 00057339 |
| Type Status | Isotype |
| Collector | H. S. Gentry |
| Collector number | 2401 |
| Country | Mexico |
| State | Chihuahua |
| Geography | North America: North America (CA, US, MX) (Region): Mexico: Chihuahua |
| Locality | Guasaremos, Rio Mayo, canyon |
| Date Collected | 1936-08-20 |
| Habitat | Tropical Sonoran; canyon bottom |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/0b699191-5da8-44c3-8748-21d8f2afc726 |
| Harvard University Herbaria Barcode | 00057339 |
| Herbarium | GH |
| Family | Euphorbiaceae |
| Type Status | Isotype |
| Isotype of | Euphorbia dioscoreoides subsp. attenuata V. W. Steinmann |
| Verified by | V. W. Steinmann (RSA) |
| Date Determined | 1996 |
| Taxon Reference | (for Euphorbia dioscoreoides subsp. attenuata V. W. Steinmann) Aliso 1996. 15: 222. |
| Family | Euphorbiaceae |
| Determination | Euphorbia dioscoreoides Boissier |
| Determined by | M.J. Huft (F) |
| Date Determined | 1992 |
| Determination Remarks | [current name] |
| Family | Euphorbiaceae |
| Determination | Euphorbia dioscoreoides Boissier |
| Determined by | L.C. Wheeler |
| Date Determined | 1939 |
| Family | Euphorbiaceae |
| Determination | Euphorbia uniglandulosa S. Watson |
| Determination Remarks | [label name] |
| Sex | not determined |
| Phenology | FlowerAndFruit |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
| Item Remarks | "This identification is 95% wrong! Leon Croizat on sight Dec. 4, 1937" [pencil annotation] |