Mammillaria poselgeri Hildm.
Cactaceae
| Collection Number | not collected |
| Collectors | |
| Identified By | |
| Source | C. Davidson |
| Date | 15 February 2003 |
| Country | USA |
| state | California |
| county | Riverside |
| Garden | Moorten Botanical Gardens |
| Location | 1701 So. Palm Canyon Dr., Palm Springs |