]> GH barcode-00272160 United States of America Texas Jeff Davis County: Little Aguja Creek, Little Aguja Canyon. Downstream from confluence with Burrow Springs, rock pool, Buffalo Trail Boy Scout Ranch. Potamogeton clystocarpus Fernald Fernald 2010-08-16 16:37:58 C. B. Hellquist, E. Schneider & D. Damon