| Classification | Euphorbiaceae: Euphorbia |
| Classification 1 | Euphorbiaceae: Chamaesyce |
| Classification 2 | Euphorbiaceae: Euphorbia |
| Harvard University Herbaria Barcode(s) | 00047657 |
| Type Status | Isolectotype |
| Collector | G. Thurber |
| Collector number | 628 |
| Country | United States of America |
| State | California |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: California: San Diego County: San Felipe |
| Date Collected | 1852-05-** |
| Habitat | Gravelly hills |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/77996c07-67ea-4bb5-a4ec-26e33bb2d801 |
| Harvard University Herbaria Barcode | 00047657 |
| Herbarium | GH |
| Family | Euphorbiaceae |
| Determination | Euphorbia cinerascens Engelmann |
| Determination Remarks | [is label name] |
| Annotation Text | n. sp. var. |
| Family | Euphorbiaceae |
| Determination | Euphorbia cinerascens var. appendiculata Engelmann |
| Determination Remarks | [pencil annotation on sheet] |
| Annotation Text | type material |
| Family | Euphorbiaceae |
| Determination | Euphorbia melanadenia Torrey |
| Determined by | L. C. Wheeler |
| Date Determined | 1936 |
| Family | Euphorbiaceae |
| Determination | Chamaesyce melanadenia (Torrey) Millspaugh |
| Determination Remarks | [is Current name] |
| Family | Euphorbiaceae |
| Type Status | Isolectotype |
| Isolectotype of | Euphorbia cinerascens var. appendiculata Engelmann |
| Verified by | W. T. Kittredge |
| Date Determined | 2008 |
| Determination Remarks | [LT: MO] |
| Taxon Reference | (for Euphorbia cinerascens var. appendiculata Engelmann) Rep. U.S. Mex. Bound., Bot. 1858. 186. |
| Sex | not determined |
| Phenology | Flower |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
