University of California, Riverside Plant Herbarium (UCR)
Potentilla rivalis Nutt.
United States, Colorado, Jefferson, Ranson/Edwards Homestead Open Space Park. High plains above Rocky Flats, 1.7 miles west on CO Hwy 72 from CO Hwy 93, 1.4 miles north on Plainview Road, 450 m east-northeast to the original homestead location
1908 meters (6258ft)
Very wet, water from an open well [near Coal Creek].