]> GH barcode-01155159 United States of America Colorado 22 miles N of Rifle, near County Routes 13 and 789 Boechera retrofracta (Graham) A. Löve & D. Löve (Graham) A. Löve & D. Löve 2017-05-25 08:26:22 R. C. Rollins & K. W. Rollins Aileen G. Roads