USA, Colorado, Jefferson, Ranson/Edwards Homestead Open Space Park. High plains above Rocky Flats, 1.7 miles west on CO Highway 72 from CO Highway 93, 1.3 miles north on Plainview Road, then 20 meters east into open prairie.
39.8904 -105.2616 WGS 1984
Along old road in the direction of the original homestead.
Stem hairs appressed antrorsely.
Collected by permit: Jefferson County Open Space, 2017, issued: March 1, 2017, to: Tom Schweich