Petalonyx thurberi A. Gray
Loasaceae
| Collection Number | Davidson, C 5853 |
| Collectors | |
| Identified By | C. Davidson (LAM), 1977 |
| Source | C. Davidson |
| Date | 29 May 1977 |
| Country | USA |
| state | California |
| county | San Bernardino |
| Location | East Mojave Desert. 2 miles south of Kelso on Kelbaker Road, east of Kelso Dunes. |
| Lat/Long | N 34 59 56 W 115 39 16 |