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Arnica gracilis

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Arnica gracilis
Scientific classification
Kingdom:
Plantae
(unranked):
Angiosperms
(unranked):
Eudicots
(unranked):
Asterids
Order:
Asterales
Family:
Asteraceae
Tribe:
Heliantheae
Genus:
Arnica
Species:
A. gracilis
Binomial name
Arnica gracilis
Synonyms[1]
  • Arnica arcana A.Nelson
  • Arnica betonicifolia var. gracilis (Rydb.) M.E.Jones
  • Arnica columbiana A.Nelson
  • Arnica jonesii Rydb.
  • Arnica lactucina Greene
  • Arnica latifolia var. gracilis (Rydb.) Cronquist
  • Arnica multiflora Greene

Arnica gracilis is a North American species of arnica in the sunflower family, known by the common name Smallhead arnica.[2][3] It is native to western Canada (Alberta, British Columbia) and the northwestern United States (Washington, Oregon, Idaho, Montana, Wyoming, north-central Colorado (Jackson County), and northern Utah (Cache, Summit, + Daggett Counties).[4]

Arnica gracilis is an herb up to 30 cm (12 inches) tall. Flower heads are yellow, with both ray florets and disc florets.[2]

References

  1. ^ The Plant List Arnica gracilis Rydb.
  2. ^ a b Flora of North America, Smallhead arnica, Arnica gracilis
  3. ^ Rydberg, Per Axel 1897. Bulletin of the Torrey Botanical Club 24(6): 297
  4. ^ Biota of North America Program 2014 county distribution map


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