Perideridia oregana

Yampah, best planted in clumps, blooms in the summer and is reminiscent of Queen Anne’s Lace, with umbels of small white flowers and delicate grass-like foliage. This perennial in the carrot family relies on insects for pollination.

yampah inflorescence
yampah side view
Perideridea Oregana Terry Spivey, USDA Forest Service, Bugwood.org
  • yampah inflorescence
  • yampah side view
  • Perideridea Oregana Terry Spivey, USDA Forest Service, Bugwood.org

Plant Details

Habitat:
Oak woodland
Upland Prairie and Savanna
Wet Prairie
Mature Height:
4-36"
Shade Preference:
Full Sun, Partial Shade,
Soil Tolerance:
dry, moist or wet soils, any texture
Special Uses:
Yampah's tuberous roots are a food source for many tribes. It attracts pollinators.