United States, Texas, Presidio, Chinati Mtns. State Natural Area. At the Cienega, a large alkali seep SE of Sierra Parda.
29.90528 -104.56667
Basin covered with Distichlis spicata, Scirpus, Sporobolus, numerous other grasses and Cyperaceae, with Typha in the wettest spots. Ill spelling common erect annual in loose sandy igneous-derived soils. Ray and disk flts yellow. A weed near stone shelter.