A beautiful kind, forming low clumps of many, very narrow leaves, from five to twenty inches long and much taller than the flower-stalks. The handsome flowers are over three inches across, bright purplish-blue, the sepals veined with darker color and marked with a white stripe. This is common on grassy hills near the coast and farther inland becomes taller and paler in color. The flowers are slightly sweet-scented and begin to bloom in January. The Hupa Indians used the leaves for making twine and rope for their nets and snares. There are many other beautiful western Irises.

There are numerous kinds of Sisyrinchium, attractive little plants, all American, many from South America; with fibrous roots; grasslike leaves; slender, flat stems, sometimes branching; papery and green bracts and pretty flowers, that soon wither, on very slender pedicels, the six spreading divisions all alike; the filaments of the stamens united; the style branches slender, the capsule roundish, containing round seeds.