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Penstemon rupicola

Plantaginaceae

Rock Penstemon

Penstemon rupicola
Mats of evergreen leaves, flower stems less than 4 in. tall. Leaves widely oval to round, 1/4–3/4 in. long, finely toothed, deep blue-green, with a blue-white waxy surface. Flowers deep rose to pink, lavender-pink, or violet, rarely white, 3/4–1 1/2 in. long, staminode hairless or bearing golden-woolly hairs. Grows on rocky outcrops at mid to high elevations. Where they come in contact, hybridizes with P. davidsonii or P. newberryi.

  • Rarity: Locally Common
  • Flowering Time: Mid Spring, Late Spring, Early Summer, Mid Summer, Late Summer
  • Flower Form: 5 petals, 2 lips (Scrophulariaceae)
  • Life Cycle: Perennial
  • Height: 2–6 inches
  • Habitat: East-side Forest, Subalpine, West-side Forest
  • Found In: Mt. Rainier NP, N Cascades NP, Siskiyous, West Gorge
  • Native: Yes

Map of where Penstemon rupicola is found