United States of America, Colorado, Archuleta, Eastern San Juan Mountains: Opal Lake Trailhead and along Opal Lake Trail 564, between Rio Blanco and Flattop Mountain, ca 14.5-15 air mi ESE of Pagosa Springs.
For additional information about this specimen, please contact: Jennifer Ackerfield, Head Curator of Biodiversity Collections (jennifer.ackerfield@botanicgardens.org)