United States of America, Colorado, Saguache, San Luis Valley; Baca National Wildlife Refuge, ca. 3.5 miles SW of Crestone. Along Willow Creek at eastern boundary of Refuge. Willow Creek at eastern boundary of Refuge.
For additional information about this specimen, please contact: Jennifer Ackerfield, Head Curator of Biodiversity Collections (jennifer.ackerfield@botanicgardens.org)