]> GH barcode-01573877 United States of America Colorado prominent clay ridge NE of Julesburg (Jumbo) Reservoir; at the top of the grade crossed by Road 93 about 1 mi N of intersection weith Road 70, N of the Platte River Physaria arenosa subsp. argillosa (Rollins & E. A. Shaw) O'Kane & Al-Shehbaz (Rollins & E. A. Shaw) O'Kane & Al-Shehbaz 2020-03-16 18:49:18 R. C. Wittmann