United States of America, Colorado, Jefferson, Guy Gulch. Southwest side of County Road 70 and the gulch, 660 m. northwest of Centennial Ranch, 12.8 km. northwest of the GNIS location of Golden.
39.79756 -105.36092 WGS 1984
2422 meters (7944ft)
Additional habitat descriptions: Sunny southeast-facing rocky slope, north ridge above small gulch tributary to Guy Gulch, also collected here: Symphyotrichum porteri, Allium cernuum, Muhlenbergia montana, and Thinopyrum intermedium.
Small plants, leaves deeply lobed, involucres small, in flower.