Place
- Along Corpus Christi Bay.1
- Along US route 290, near junction with road to Iraan, 24 mi NW of Sheffield1
- Along highway, 3 miles east of Monahans.1
- Along route #1048, three miles northeast of Mobeetie.1
- Andrews1
- Aransas1
- Armstrong1
- At Alilene State Park1
- At Camp Barkeley1
- At Camp Barkeley.1
- Atascosa1
- Balcones Canyonlands NWR. Gainer Tract (type locality of C. alabamensis var. texensis)1
- Bank of Buffalo Bayou, Harrisburg1
- Bartow1
- Bastrop State Park1
- Big Bend National Park1
- Big Bend National Park, Chisos Mountains slopes with forests1
- Big Bend National Park. About 1 mi. SW of junction of road from Santa Elena Canyon and cut-off to Terlingua.1
- Blackstone Ranch, cedar-sotol meas-top 13 miles south of Sheffield1
- Bois d'Arc Island, 3 1/2 airline miles south by west of Combine.1