irideous
Ir`i*da"ceous, I*rid"e*ous, a. Etym: [From NL. Iris, Iridis, the Iris.] (Bot.) Defn: Pertaining to, or resembling, a large natural order of endogenous plants (Iridaceæ), which includes the genera Iris, Ixia, Crocus, Gladiolus, and many others.