United States, Texas, Presidio, Chinati Mtns. State Natural Area. Uppermost pool of Indian Spring, seeps and springs in igneous bedrock. In the westernmost part of CMSNA, to the S of Sierra Parda.
29.89139 -104.55778
Disturbed riparian area with Salix, Chilopsis, Populus, Vitis, Mimulus, Lythrum, Centaurium, Nicotiana, and numerous Cyperaceae. Rhizomatous perennial with runners. Locally abundant in loose sand and gravel of arroyo.