]> GH barcode-00988685 United States of America Oregon Williamette National Forest, Tombstone Prairie, about 35 1/2 miles west of Sisters along U.S. Hwy. 20; T13S, R6E, Sec. 31 Artemisia ludoviciana Nuttall Nuttall 2024-04-02 12:18:30 R. R. Halse