Yeatesia platystegia (Torr.) Hilsenb. Yeatesia platystegia (Torr.) Hilsenb. in Syst. Bot. 14(3): 435. 1989 sec. Ulloa Ulloa & al. 2018≡Tetramerium platystegium Torr. in Rep. U.S. Mex. Bound. 2(1): 126. 1859 syn. sec. Tropicos 2013