United States, Texas, Zapata, S side of Powerline Rd., W of Sweetie Rd., ca. 5.5 airmiles E of US Rt. 83 bridge over Dolores Creek, on Gallberry Ranch ca. 12-14 airmiles NE of San Ygnacio. Arroyo Salado East Quadrangle.
27.20836 -99.32972
Shrub-like suffrutescent perennial < 1 m tall; co-dominant in Isocoma-Varilla shrubland on somewhat saline clay in dry valley between thornscrub-covered gravelly slopes underlain by Yegua Formation. Associates include Aloysia gratissima, Atriplex acanthocarpa, A. canescens, Bouteloua trifida, Isocoma coronopifolia, Jatropha dioica, Lycium berlandieri, Opuntia leptocaulis, O. lindheimeri, Pennisetum ciliare, Prosopis glandulosa, P. reptans, Sporobolus pyramidatus, Suaeda sp., Varilla texana, Ziziphus obtusifolius.