]> GH barcode-02069335 United States of America Maryland Barrens on east slope of Grays Hill, 2 miles east of Elkton. Bartonia virginica (Linnaeus) Britton, Stearn & Poggenburg (Linnaeus) Britton, Stearn & Poggenburg 2020-11-23 10:11:14 R. R. Tatnall