United States, Texas, Brown, On N-facing slope, S side of Lewis Creek ca. 0.2-0.3 mi. NE of large tank ca. 1 mi. E of St. Rt. 45, ca. 1.8 airmiles SE of jct. St. Rt. 45 and R. M. 2126, Camp Bowie Training Site (TX National Guard). Brownwood Quadrangle.
31.64083 -98.93611
Occasional in well drained sand and gravel over sandstone outcrops (Strawn Group, Pennsylvanian) exposed on N-facing slope. Associates include Eragrostis secundiflora, Chloris cucullata, Linaria sp., Buchloe dactyloides, Vulpia octoflora, Cenothera laciniata, Krameria lanceolata, Thamnosma texanum, Galium texense, Spermolepis echinata, Chaetopappa asteroides, Cyperus filiculmis, Carex planostachys.