Eriochloa contracta Hitchc. Eriochloa contracta Hitchc. in Proc. Biol. Soc. Wash. 41: 163. 1928 sec. Dávila & al. 2018=Helopus mollis Müll. Hal. in Bot. Zeitung (Berlin) 19(43): 314. 1861 syn. sec. Dávila & al. 2006