Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
1669131
| TX | Brewster | along both banks of the Rio Grande at Reagan Canyon and above | 1946 |
13040208
| Reagan-Sanderson | unknown |
1669171
| TX | Brewster | at the east end of St. Helena Canyon near Terlingua | 1946 |
13040203
| Black Hills-Fresno | unknown |
1669185
| TX | Brewster | at the mouth of St. Helena Canyon, Rio Grande | 1948 |
13040203
| Black Hills-Fresno | unknown |
1667176
| TX | Brewster | margins of spring creek, in deep rocky canyon, Oak Canyon, Chisos Mountains | 1928 |
13040204
| Terlingua | unknown |
1669159
| TX | Presidio | along Rio Grande near mouth Alamito Creek. about 8 mi. E. Presidio | 1941 |
13040202
| Alamito | unknown |