Arnica cordifolia
Asteraceae
Heartleaf Arnica
Erect, glandular, hairy. Stems 1 or few, usually unbranched. Leaves 2–4 pairs, heart-shaped; lower leaves shallowly toothed. Flower heads of 10–15 ray flowers with pointed tips surrounding disk with long soft hairs. Grows in light shade cast by trees or rocks at mid to high elevations in mountains.
- Rarity: Common
- Flowering Time: Early Summer, Mid Summer, Late Summer
- Flower Form: Senecio Tribe
- Life Cycle: Perennial
- Height: 6–24 inches
- Habitat: Alpine, East-side Forest, Meadow, Subalpine, West-side Forest
- Found In: Crater Lake NP, East Gorge, Mt. Rainier NP, N Cascades NP, Olympic NP, Siskiyous, Steens, Wallowas
- Native: Yes
