Perideridia bolanderi
Apiaceae
Bolander's Yampah
Erect. Stems branched. Basal leaves with 1–6 in. petioles, pinnately dissected to thread-like sections, some longer and wider than others, often lobed and toothed; the few stem leaves are smaller. Umbel consists of numerous clusters of small white flowers sustained by thin tan bractlets. Grows in meadows, scrub pine, woodlands with summer-dry clay soils, at mid- to high elevations.
- Rarity: Common
- Flowering Time: Early Summer
- Flower Form: 5 tiny petals fls. in umbel (parsley famly)
- Life Cycle: Perennial
- Height: 6–36 inches
- Habitat: East-side Forest, Meadow, Shrub-Steppe
- Found In: Steens, Wallowas
- Native: Yes
- Also Known As: Olasi, Mountain False Caraway
