]> GH barcode-01575002 United States of America Arizona 21 Mile Rapid, 21.5 miles below Lees Ferry on the Colorado River Physaria arizonica (S. Watson) O'Kane & Al-Shehbaz (S. Watson) O'Kane & Al-Shehbaz 2019-06-04 18:27:15 A. H. Holmgren [data not captured]