]> GH barcode-01722044 United States of America Texas About 70-75 mi. S. Marfa. Fresno Canyon where thick layer of sedimentary rock forms bed of Fresno Creek Prunus havardii (W. Wight) S. C. Mason (W. Wight) S. C. Mason 2020-05-15 07:47:36 L. C. Hinckley