Taxon  Report   687    
Arnica longifolia  D. C. Eaton
Longleaf arnica,  Seep spring arnica
Arnica longifolia
© 2014 John Doyen
Photos from
CalPhotos / Calflora
Arnica longifolia
© 2001 Jeff Abbas
Arnica longifolia
© 2013 Robert Sikora
Arnica longifolia, a dicot, is a perennial herb that is native to California, is also found elsewhere in North America and beyond.

Interactive Distribution Map

Observation Hotline
(observation details)

point, line, or polygon

Plant Characteristics
and Associations

Bloom Period
Arnica longifolia
© 2010 Keir Morse
Genus: Arnica
Communities: Yellow Pine Forest, Red Fir Forest, Lodgepole Forest, Subalpine Forest, wetland-riparian

Wetlands: Occurs usually in wetlands, occasionally in non wetlands

Name Status:
Accepted by JEF + PLANTS

Alternate Names:
PLANTS: Arnica longifolia ssp. genuina
PLANTS: Arnica longifolia ssp. myriadenia
ICPN: Arnica ciliaris
More information about  Arnica longifolia
Nursery / seed vendor availability from CNPLX
Commercial availability unknown.
Landscaping information from Calscape
Photos on   /   Google Images
Jepson eFlora

Records from the Consortium of California Herbaria

ITIS Original Publication citation


Search the International Plants Names Index

Search (Flora of North America)

website references from Google

Suggested Citation
Calflora: Information on California plants for education, research and conservation, with data contributed by public and private institutions and individuals, including the Consortium of California Herbaria. [web application]. 2019. Berkeley, California: The Calflora Database [a non-profit organization]. Available:   (Accessed: Jan 24, 2019).