Boechera lyallii
Brassicaceae
Lyall's Rockcress
Stems slender, upright. Leaves at base sessile or with short petiole, oblong, 1/3–1 in., with few smaller leaves on stem. Flowers 3–15 on stem top, rose to purple. Seedpods erect to spreading outward, straight, hairless, to 2 1/3 in. long. Grows in rock crevices, on slopes, ridges, at high elevations.
- Rarity: Uncommon
- Flowering Time: Early Summer
- Flower Form: Petals 4
- Life Cycle: Perennial
- Height: 4–10 inches
- Habitat: Alpine, Shrub-Steppe
- Found In: Mt. Rainier NP, N Cascades NP, Olympic NP, Siskiyous, Steens, Wallowas
- Native: Yes
- Latin Synonyms: Arabis lyallii
