Iris missouriensis
Iridaceae
Rocky Mountain Iris
Stem erect, with few, short, grass-like leaves. Rhizomes stout, covered with old leaf bases. Leaves narrow, sometimes stained purple, shorter than flower stem. Flower light to dark lavender-blue; yellow-orange patch on the 3 lower petals, surrounded by white; dark blue pencil lines over all. Flower sits on top of widened ovary without a perianth tube. Grows in moist areas along rivers, meadows, at mid elevations.
- Rarity: Common
- Flowering Time: Early Summer
- Flower Form: Petals 3 or 6, flat leaves (Iris)
- Life Cycle: Perennial
- Height: 8–24 inches
- Habitat: Bog/Fen/Wetland, Meadow, Moist Riverbanks, Shrub-Steppe
- Found In: East Gorge, Great Basin, Olympic NP, Steens
- Native: Yes
- Also Known As: Western Blue Iris
