Iris, Blue Flag Iris Missouriensis
The large, pale blue to purple blossoms of the Iris bloom in spring and summer, on brook-banks and in meadows at 3000-10000 ft. The plants grow in masses, 1-3 ft. tall, and sometimes carpet the floor of a mountain meadow. The botanical name for the Blue Flag is from the Greek for “rainbow” and refers to the many colors of the different species and varieties. These are cultivated and furnish some of our most beautiful garden plants. The earliest illustration of the Iris was made about the beginning of the sixth century A.D. in a work by Dioscorides. In this work, it was considered valuable as a source of drugs rather than as a garden plant, and the number of ailments for which iris preparations were prescribed is truly astonishing. At present, however, its medicinal value consists merely of an extract from the root, which is used as an emetic and cathartic. The seeds of some species are sometimes roasted and used in Great Britain as a substitute for coffee. The orris root of commerce is supplied by Iris florentina which has a fragrant root. The Iris is the Fleur-de-lis of France, which was for long the royal emblem.