United States, Texas, Val Verde, On W side of main road on plateau top between Big and Little Satan canyons, ca. 2.0 airmiles E of mouth of Little Satan Canyon at Devils River. Satan Canyon Quadrangle. Devils River State Natural Area Southern Unit.
Latitude/Longitude:
29.70205 -100.97435
In grassland on relatively deep clay or clay loam on flat upland landscape underlain by limestone. Grassland dominated by Hilaria belangeri, Parthenium confertum and Croton monanthogynus. Other associates included Aristida sp., Bouteloua curtipendula, B. trifida, Desmanthus velutinus, Digitaria cognata, Ditaxis humilis, Erioneuron pilosum, Ipomoea costellata, Portulaca pilosa, Quincula lobata, Salvia reflexa, Senna lindheimeriana, Thymophylla pentachaeta, Verbena canescens.