Castilleja rubida, commonly called the purple alpine paintbrush or Wallowa alpine paintbrush,[1] is a species of Indian paintbrush.[2]
This is a short perennial species growing only 5–15 cm tall. Leaves are a dark green or purple, and the bracts are usually purple, burgundy, and lavender, though it is rarely pink or yellowish.
This species is endemic to limestone peaks in the Eagle Cap Wilderness, Oregon, between 2,200-3,000 m (7,217–9842 ft).
It grows in rocky slopes, ledges, gravelly flats and alpine ridges.[3]
Flowers bloom in July and August.[4]
Currently treated as a G2 (Imperiled) on NatureServe,[5] due to restricted range and climate change.