]> GH barcode-00025932 Mexico Tamaulipas 18 km. by winding road southeast of Bustamante toward La Presita and Tula, 23°20'N, 99°40'W, 1700 m Polygala madrensis T. Wendt T. Wendt 2010-08-16 16:34:47 M. C. Johnston, T. L. Wendt & F. Chiang C.