| Harvard University Herbaria Barcode(s) | 00063160 | 
| Type Status | Isolectotype | 
| Collector | C. Wright | 
| Collector number | Z | 
| Country | United States of America | 
| State | Texas | 
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Texas: El Paso County: El Paso | 
| Locality | N. Mex. [at Frontera] | 
| Date Collected | 1852-05-15 | 
| Habitat | [Sandy ridges] | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/5d2a08bb-d446-4356-874f-bec425ef2272 | 
| Harvard University Herbaria Barcode | 00063160 | 
| Herbarium | GH | 
| Type Status | Isolectotype | 
| Isolectotype of | Opuntia arenaria Engelmann | 
| Verified by | W. T. Kittredge | 
| Date Determined | 2008 | 
| Determination Remarks | [LT: MO] | 
| Taxon Reference | (for  Opuntia arenaria Engelmann) Proc. Amer. Acad. Arts 1856. 3: 301. | 
| Determination | Opuntia polyacantha var. arenaria (Engelmann) Parfitt | 
| Determined by | B. D. Parfitt (ASU) | 
| Date Determined | 1991 | 
| Determination Remarks | [current name] | 
| Annotation Text | ISOLECTOTYPE of: Opuntia arenaria Engelm. | 
| Sex | not determined | 
| Phenology | Flower | 
| Preparation Type | Sheet | 
| Preparation Method | Pressed |