United States, Texas, Presidio, Chinati Mountains State Natural Area.
29.86032 -104.47719
In a limestone desert canyon. Local in Trans Pecos Desert Wash Grassland. Occuring on lower rhyolite gravel and boulder deposits of the Chinati Group Formation. Plant associations include: Cephalanthes occidentalis, Juglans microcarpa, Muhlenbergia rigens, Galactia wrightii, Bouteloua curtipendula.