Arnica lanceolata

Arnica lanceolata is a North American species of flowering plant in the family Asteraceae, known by the common name clasping arnica[2] or lanceleaf arnica.[3] It has a disjunct (discontinuous) distribution in western North America and northeastern North America.[4][5]

Arnica lanceolata
Arnica lanceolata subsp. prima
California
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Genus: Arnica
Species:
A. lanceolata
Binomial name
Arnica lanceolata
Synonyms[1][2]
  • Arnica mollis var. petiolaris Fernald
  • Arnica petiolaris (Fernald) Rydb.
  • Arnica amplexicaulis Nutt., syn of subsp. prima
  • Arnica amplexifolia Rydb., syn of subsp. prima

Arnica lanceolata is a perennial herb usually growing from a small rhizome and producing one or more hairy, glandular stems. The stems are lined with 5 to 10 pairs of oval-shaped, toothed leaves up to 12 centimeters long. The inflorescence is a cluster of several daisy-like flower heads with a center of brownish disc florets and a fringe of yellow ray florets 1 to 2 centimeters long. The fruit is a cylindrical achene covered in hairs and with a light brown pappus at one end.[2] It grows in moist areas, along stream banks, and montane to alpine meadows.[2]

Subspecies[1][2]

References

  1. The Plant List Arnica lanceolata Nutt.
  2. "Arnica lanceolata subsp. prima in Flora of North America @ efloras.org". www.efloras.org. Retrieved 2022-05-14.
  3. USDA, NRCS (n.d.). "Arnica lanceolata". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 26 May 2015.
  4. Biota of North America Program 2014 state-level distribution map
  5. "Arnica lanceolata ssp. prima Calflora". www.calflora.org.


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