Our Native Irises: Pacific Coast Irises
Iris douglasiana: Douglas Iris
The Douglas iris occurs in a narrow strip of approximately 750 miles from southern Oregon to northern California.
Iris douglasiana flowers are a variety of hues from purplish-red, light lavender, blue, creamy white, and all the potential shades in between. The sepals are widely spreading, upright, and then arching downward. The signal is a yellow to white with blue or purple veins. The petals are spreading and upright, shorter and slightly narrower than the sepals. The inflorescence has eight to nine flowers appearing in two- to three-flowered units. The flowering stalk is generally shorter than the attending leaves. The yellowish-green to dark green leaves are stiff and upright, basal with a deep reddish base, from shallowly rooted, freely branching rhizomes that can form large colonies.
Iris douglasiana is commonly found growing in open woods, rocky outcrops, sunny slopes and fields.