| Classification | Euphorbiaceae: Euphorbia |
| Classification 1 | Euphorbiaceae: Poinsettia |
| Classification 2 | Euphorbiaceae: Euphorbia |
| Harvard University Herbaria Barcode(s) | 00063326 |
| Type Status | Syntype |
| Collector | J. M. Bigelow |
| Country | United States of America |
| State | Texas |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Texas |
| Locality | At Rio Frio |
| Date Collected | 1850-10-21 |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/7b8926ea-408a-4b78-b8c7-de7b6653200c |
| Harvard University Herbaria Barcode | 00063326 |
| Herbarium | GH |
| Previous ownership | ex Herb. G. Thurber |
| Family | Euphorbiaceae |
| Determination | Euphorbia barbellata Engelmann |
| Determination Remarks | [is label name] |
| Annotation Text | n. sp. perhaps too near to Cyathophora |
| Family | Euphorbiaceae |
| Determination | Poinsettia cyathophora (Murray) Klotzsch & Garcke |
| Determined by | R. L. Dressler (MO) |
| Date Determined | 1960 |
| Annotation Text | Paratype-Euphorbia barbellata Engelm. |
| Family | Euphorbiaceae |
| Determination | Euphorbia cyathophora Murray |
| Determined by | M. H. Mayfield (TEX) |
| Date Determined | 1997-09-** |
| Determination Remarks | [is Current name] |
| Family | Euphorbiaceae |
| Type Status | Syntype |
| Syntype of | Euphorbia barbellata Engelmann |
| Verified by | M. H. Mayfield (TEX) |
| Date Determined | 1998 |
| Annotation Text | [Isosyntype] |
| Taxon Reference | (for Euphorbia barbellata Engelmann) Rep. U.S. Mex. Bound., Bot. 1859. 190. |
| Sex | not determined |
| Phenology | NotDetermined |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
