Arnica chamissonis
Asteraceae
Silver Arnica
Erect. Single stem, branching at inflorescence. Leaves in 5–10 pairs, lance-shaped, entire or slightly toothed, sessile or on short stalks. Flower heads usually have 13 ray flowers about 1/2 in. long. Flowers held in a cup composed of 2 rows of rounded bracts with long white hairs inside pointed tips. Grows in high meadows, damp places, at high elevations. Tallest arnica in our region.
- Rarity: Locally Common
- Flowering Time: Early Summer, Mid Summer, Late Summer
- Flower Form: Senecio Tribe
- Life Cycle: Perennial
- Height: 12–36 inches
- Habitat: Subalpine, West-side Forest
- Native: Yes
- Also Known As: Meadow Arnica
