| Classification | Cactaceae: Mammillaria |
| Harvard University Herbaria Barcode(s) | 01875393 |
| Collector | R. A. Bye Jr. |
| Collector number | 3442 |
| Country | Mexico |
| State | Chihuahua |
| Geography | North America: North America (CA, US, MX) (Region): Mexico: Chihuahua |
| Locality | Mnpo. de Batopilas. Barranca de Batopilas, obtained from Tarahumara between Guimivo and La Bufa |
| Date Collected | 1973-02-28 |
| Verbatim Elevation | 2500-3000 ft. |
| Habitat | open areas in short tree forest of barranca |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/8d241ee6-8577-4b11-9c47-68f4ea37ca7b |
| Harvard University Herbaria Barcode | 01875393 |
| Herbarium | ECON |
| Family | Cactaceae |
| Determination | Mammillaria grahamii Engelmann |
| Determination Remarks | [filed under] [current name] |
| Sex | not determined |
| Phenology | NotDetermined |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
