Asteraceae

Arnica chamissonis

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: All Summer
• Life Cycle: Perennial
• Height: 12--36 inches
• Habitat: West-Side Forest, Subalpine
• Found In:
• Native: Yes