Ammannia grayi S.A. Graham & Gandhi Ammannia grayi S.A. Graham & Gandhi in Harvard Pap. Bot. 18(1): 75. 2013 sec. Tropicos 2013=Nesaea longipes A. Gray in Smithsonian Contr. Knowl. 3(5): 68–69. 1852 syn. sec. Tropicos 2013