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 |
1669307
| TX | Cameron | along Rio Grande | 1919 |
13090002
| Lower Rio Grande | unknown |
1669177
| TX | El Paso | near the power plant across from Anapra, N of NM 273 bridge across Rio Grande | 1989 |
13030102
| El Paso-Las Cruces | unknown |
1669310
| TX | El Paso | on banks of Rio Grande | 1947 |
13040100
| Rio Grande-Fort Quitman | unknown |
1669216
| TX | Galveston | on the Gulf side of Broadway Ave. across from Seward East Apartments | 1999 |
12040204
| West Galveston Bay | unknown |
1669450
| TX | Gonzales | Headquarters | 1948 |
12100202
| Middle Guadalupe | unknown |
1669358
| TX | Gonzales | in Palmetto State Park | 1943 |
12100203
| San Marcos | unknown |
1667157
| TX | Grayson | Herman Baker Park, 2 miles SW of center of Sherman | 1993 |
11140101
| Bois D'arc-Island | unknown |
1669317
| TX | Hansford | North of Spearman about 14 miles along Palo Duro Creek | 1978 |
11100104
| Palo Duro | unknown |
1667188
| TX | Jackson | Lavaca river bottom near mouth | 1941 |
12100101
| Lavaca | unknown |
1669170
| TX | Jackson | on Menehee Flats south of Vanderbilt | 1943 |
12100402
| West Matagorda Bay | unknown |
1668086
| TX | Potter | About 15 miles north of Amarillo on Highway 87 then 3 miles east along the river bottom | 1977 |
11090105
| Lake Meredith | unknown |
1669159
| TX | Presidio | along Rio Grande near mouth Alamito Creek. about 8 mi. E. Presidio | 1941 |
13040202
| Alamito | unknown |
1669250
| TX | Randall | Palo Duro Canyon | 1934 |
11120103
| Upper Prairie Dog Town Fork Red | unknown |
1668991
| TX | Webb | Nuevo Laredo | 1901 |
13080002
| San Ambrosia-Santa Isabel | unknown |