]> GH barcode-02195595 United States of America Alaska Along N. bank of Kukpowruk River between 1 and 2 miles from its mouth on Kasegaluk Lagoon. Betula nana subsp. exilis (V. N. Sukacev) Hultén (V. N. Sukacev) Hultén 2020-08-20 13:41:31 J. H. Thomas