- iridaceous plant - any bulbous plant of the family Iridaceae
--1 is a kind of bulbous plant
--1 is a member of Iridaceae, family Iridaceae, iris family
--1 has particulars:iris, flag, fleur-de-lis, sword lily; blackberry-lily, leopard lily, Belamcanda chinensis; crocus; freesia; gladiolus, gladiola, sword lily; corn lily; blue-eyed grass