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spearleaf arnica
Scientific Name: Arnica longifolia
Family: Asteraceae
Category: Dicot
Growth: Forb/herb
Duration: Perennial
Other Names:
Arnica longifolia: Spearleaf Arnica
Arnica longifolia, commonly known as spearleaf arnica or longleaf arnica, is a perennial herb in the sunflower family (Asteraceae).
Considerations for Pets
- The plant has yellow, daisy-like flower heads.
Taxonomy and Nomenclature
- Scientific Name: Arnica longifolia D.C. Eaton
- Family: Asteraceae (Aster family or Sunflower family)
- Synonyms: Arnica longifolia ssp. genuina, Arnica longifolia ssp. myriadenia (Piper) Maguir., Arnica ciliaris
- Common Names: Spearleaf arnica, longleaf arnica, seep spring arnica, spear-leaved arnica, longleaf leopardbane, seep-spring arnica.
Distribution and Habitat
Arnica longifolia is native to North America. It is found in locations where snow lies late into the summer, such as along the South Loop Road near the East Rim.
Morphological Characteristics and Growth Habits
- Arnica longifolia is a perennial forb/herb, meaning it is a non-woody plant that is not a grass.
- Erect stems bear daisy-like flower heads with deep yellow ray florets.
- It has green foliage and yellow flowers.
- It tends to grow in height and width, sometimes giving origin to a rounded shrub.
- The plant is described as cluster-forming, particularly in high-altitude environments.
Ecology
- In British Columbia, Canada, the plant is a red-listed taxon.
Interactions with other organisms
- It blooms in mid-August
Further Information
- TSN 36569
- USDA-NRCS PLANTS Database
- Discover Life
- Saint Mary's College of California