United States of America, Colorado, Boulder, Skunk Creek; northern edge of N.C.A.R. property, eastern foot of Green Mnt.; 39 59'N, 105 17'W; elev. 5800 ft. (1770 m).
For additional information about this specimen, please contact: Jennifer Ackerfield, Head Curator of Biodiversity Collections (jennifer.ackerfield@botanicgardens.org)