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Chamisso arnica

Scientific Name: Arnica chamissonis ssp. foliosa var. incana

Family: Asteraceae

Category: Dicot

Growth: Forb/herb

Duration: Perennial

Other Names:

       

Arnica chamissonis: Chamisso Arnica

Arnica chamissonis, commonly known as Chamisso arnica, is a perennial, herbaceous plant belonging to the Asteraceae (Aster or Sunflower) family.

Nomenclature and Taxonomy:

  • Scientific Name: Arnica chamissonis Less.
  • Common Names: Chamisso arnica, meadow arnica, leafy arnica, leafy leopardbane, arnica de Chamisso, North American arnica, American arnica, arnica des plaines.
  • Family: Asteraceae (Aster family)
  • Synonyms and Subspecies:
    • Arnica bernardina Greene
    • A. chamissonis var. bernardina (Greene) Jepson ex Maguire
    • Arnica chamissonis Less. ssp. chamissonis var. interior Maguire
    • Arnica chamissonis Less. ssp. foliosa (Nutt.) Maguire
    • Arnica chamissonis Less. ssp. foliosa Nutt.

Distribution and Habitat:

Arnica chamissonis is native to North America. It is found west of the Rockies, including Alaska, and extends through the Sierras and into the Southern California Mountains. It commonly grows along meadows and creeks.

Morphology and Growth Habits:

  • Arnica chamissonis is a perennial wildflower.
  • It features single stems arising from long, nearly naked rhizomes, typically growing to a height of 20-100 cm (approximately 8-40 inches).
  • It has 5-10 pairs of heart-shaped lower leaves.
  • The stems and leaves have herbage.
  • The plant has yellow flower heads during the summer.
  • Arnica chamissons has lance-shaped, hairy, grey-green leaves.

Comparison with Arnica montana:

Arnica chamissonis is very similar to Arnica montana. While A. chamissonis is found in the United States and surrounding regions, A. montana is native to Europe. Arnica montana is difficult to keep in the garden if soil is not lime-free.

Traditional uses:

  • Arnica chamissonis is a medicinal plant.

Further Information:

  • RHS (Royal Horticultural Society): Provides help and information on Arnica chamissonis Less.
  • Discover Life: Offers a page about the biology, natural history, ecology, identification, and distribution of Arnica chamissonis.
  • Biolib.de: Website where Kurt Stueber granted permission to use photos under GFDL.
  • Dave's Garden: Online community for sharing gardening tips and ideas.