]> GH barcode-01082928 United States of America Oklahoma 4.6 miles SW of jct. of Rtes. 99 & 99C, ca. 5.0 miles SW of Madill, Sec. 11, T6S, R4E Asclepias viridis Walter Walter 2020-02-27 15:58:23 C. B. Hellquist & L. Crouch