Spearleaf Arnica
Arnica longifolia
Kurt Stüber [1]
Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Asteraceae
- Genus:
- Arnica
- Species:
- Arnica longifolia
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Forb/herb
- Height:
- 3-4 ft
- Light Requirements:
- Full Sun
- Drought Tolerance:
- High
- Bloom Months:
- jun, jul, aug, sep, oct
- Bloom Colors:
- Yellow
Native Range
United States: California, Colorado, Idaho, Montana, Nevada, Oregon, Utah, Washington, Wyoming, Canada: Alberta, British Columbia
Reported Fauna Sightings
Bees: Black-tailed bumble bee (Bombus melanopygus), Black-tailed bumble bee (Bombus melanopygus)
Soil Requirements
- Soil Type:
- well-drained, sandy or rocky soil
- pH:
- 5.5 - 7.0 (slightly acidic to neutral)
- Drainage:
- excellent drainage required
- Moisture:
- dry to moderate
- Notes:
- prefers open, sunny locations in alpine or subalpine regions