Iris graminea, is a species in the genus Iris belonging to the subgenus Limniris, in particular the series Spuriae. It is a rhizomatous perennial, with purple or violet blue flowers almost hidden by narrow, grass-like leaves, and a plum scented fragrance. It is cultivated as an ornamental plant in temperate regions. It has several common names, including Grass-Leaved Flag, Grass leaved Iris, Plum Iris and Plum tart Iris (because of the scent