]> GH barcode-02069083 United States of America Oklahoma Johnston County: small marshy pond on south side of road ca. 0.2 mile east of entrance to Tishomingo Nat'l Wildlife Refuge, east of Rte. 99, ca. 1.0 mile south of Washita River, south of Tishomingo, Sec. 17, T4S, R6E Azolla caroliniana Willdenow Willdenow 2019-10-22 13:53:18 C. B. Hellquist & L. Crouch