1875    E. Spon  95/1  				Iris green, a pigment prepared by grinding the juice of the petals of the blue flag with quicklime. It is very fugitive.
1880     XIII. 276/2  				From the flowers of Iris florentina a pigment—the ‘verdelis’, ‘vert d'iris’, or iris-green, formerly used by miniature painters—was prepared by maceration.