| Classification | Rhamnaceae: Ziziphus | 
| Harvard University Herbaria Barcode(s) | 01971214 | 
| Collector | S. D. McKelvey | 
| Collector number | 480 | 
| Country | United States of America | 
| State | Arizona | 
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Arizona: Pima County | 
| Locality | Sabino CaƱon, Santa Catalina Mts. | 
| Date Collected | 1929-01-25 | 
| Container | Plants of Arizona | 
| Project | US and Canada - Mass Digitization | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/975f4fb9-c89e-4fca-ac55-222c580e5c99 | 
| Harvard University Herbaria Barcode | 01971214 | 
| Herbarium | A | 
| Family | Rhamnaceae | 
| Determination | Ziziphus obtusifolia var. obtusifolia | 
| Determined by | Johnston, Marshall Conring | 
| Date Determined | 1961-01-22 | 
| Determination Remarks | [current name] | 
| Family | Rhamnaceae | 
| Determination | Ziziphus obtusifolia var. canescens (A. Gray) M. C. Johnston | 
| Determination Remarks | [filed under] | 
| Sex | not determined | 
| Phenology | NotDetermined | 
| Preparation Type | Sheet | 
| Preparation Method | Pressed |