swamp lily noun6 •Any of various species of plants with showy flowers growing in wet habitatsThis is later on, when the days have lengthened and the dandles of swamp lilies flame in the ditches. — 2009 •in genera Crinum, including Crinum americanum (southern swamplily), Crinum erubescens, Crinum pedunculatum (also river lily or mangrove lily) •Lilium superbum (also Turk's cap lily, turban lily, lily royal, or American tiger lily) •Ottelia ovalifolia, of Australia. •Saururus spp. (lizard's tail) •Zephyranthes atamasco (rain lily, Atamasco lily) formsswamp lilies