| Classification | Euphorbiaceae: Euphorbia | 
| Classification 1 | Euphorbiaceae: Chamaesyce | 
| Harvard University Herbaria Barcode(s) | 00047654 | 
| Type Status | Isotype | 
| Collector | C. Wright | 
| Collector number | 1849 | 
| Country | United States of America | 
| State | Arizona | 
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Arizona: Cochise County | 
| Locality | N. Mex. [at San Bernardino] | 
| Date Collected | 1851-10-03 | 
| Habitat | [Low valley] | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/d1a419c0-aa78-4633-8345-e73824b8e999 | 
| Harvard University Herbaria Barcode | 00047654 | 
| Herbarium | GH | 
| Family | Euphorbiaceae | 
| Type Status | Isotype | 
| Isotype of | Euphorbia capitellata Engelmann | 
| Verified by | W. T. Kittredge (A/GH) | 
| Date Determined | 2008 | 
| Determination Remarks | [HT: MO] | 
| Taxon Reference | (for  Euphorbia capitellata Engelmann) Rep. U.S. Mex. Bound., Bot. 1859. 188. | 
| Family | Euphorbiaceae | 
| Determination | Chamaesyce capitellata (Engelmann) Millspaugh | 
| Determined by | W. T. Kittredge (A/GH) | 
| Date Determined | 2008 | 
| Determination Remarks | [current name] | 
| Family | Euphorbiaceae | 
| Determination | Euphorbia capitellata Engelmann | 
| Determined by | L. C. Wheeler | 
| Date Determined | 1939 | 
| Annotation Text | Isotype | 
| Family | Euphorbiaceae | 
| Determination | Euphorbia capitellata Engelmann | 
| Determination Remarks | [label name] | 
| Sex | not determined | 
| Phenology | Flower | 
| Preparation Type | Sheet | 
| Preparation Method | Pressed |