University of California, Riverside Plant Herbarium (UCR)
Artemisia campestris subsp. pacifica (Nutt.) H.M. Hall & Clem.
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, 1.6 miles north on Plainview Road, 250 m west on the slope above the road