Native Plants

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Bransford, W.D. and Dolphia

Arnica longifolia

Arnica longifolia D.C. Eaton

Spearleaf Arnica

Asteraceae (Aster Family)

Synonym(s): Arnica longifolia ssp. genuina, Arnica longifolia ssp. myriadenia

USDA Symbol: ARLO6

USDA Native Status: L48 (N), CAN (N)

From the Image Gallery

1 photo(s) available in the Image Gallery

Plant Characteristics

Duration: Perennial
Habit: Herb
Leaf Shape: Elliptic , Lanceolate
Leaf Margin: Entire
Leaf Apex: Acuminate , Acute
Size Notes: Up to about 3-1/2 feet tall.
Fruit: Fruit is a cypsela (pl. cypselae). Though technically incorrect, the fruit is often referred to as an achene.

Bloom Information

Bloom Color: Yellow
Bloom Time: Jun , Jul , Aug , Sep , Oct

Distribution

USA: CA , CO , ID , MT , NV , OR , UT , WA , WY
Canada: AB , BC

Growing Conditions

Light Requirement: Sun
Soil Moisture: Moist

Benefit

Conspicuous Flowers: yes

National Wetland Indicator Status

Region:	AGCP	AK	AW	CB	EMP	GP	HI	MW	NCNE	WMVE
Status:			FACW			FACW				FACW

This information is derived from the U.S. Army Corps of Engineers National Wetland Plant List, Version 3.1 (Lichvar, R.W. 2013. The National Wetland Plant List: 2013 wetland ratings. Phytoneuron 2013-49: 1-241). Click here for map of regions.

Additional resources

USDA: Find Arnica longifolia in USDA Plants
FNA: Find Arnica longifolia in the Flora of North America (if available)
Google: Search Google for Arnica longifolia

Metadata

Record Modified: 2007-01-01
Research By: TWC Staff

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