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Arnica latifolia
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Mountain Arnica
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Arnica latifolia
  

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About Mountain Arnica (Arnica latifolia) Arnica latifolia is a species of arnica known by the common names Broadleaf Arnica, Broad Leaved Arnica, Mountain Arnica, and Daffodil Leopardbane. It is native to western North America from Alaska to New Mexico, where it grows in mountain habitat such as forest and meadows. This is a perennial herb growing from a long rhizome and producing a hairy, mostly naked stem 10 to 50 centimeters tall. It has a cluster of leaves around its base and usually a few pairs along the lower part of the stem. The leaves are lance-shaped to broad and nearly heart-shaped, and are usually toothed. The flower cluster contains one or more daisylike flower heads lined in hairy phyllaries. Each has a center of yellow disc florets and several yellow ray florets up to 3 centimeters long. The fruit is an achene with a white pappus.
Plant Description
Plant Type
Perennial herb

Max. Height
0.33 - 2 ft (0.1 - 0.6 m)

Form
Upright

Growth Rate
Moderate

Flower Color
Yellow

Flowering Season
Summer
Spring
Summer
Fall
Winter


Native Status
Native

Natural Setting
Site Type
Meadows and open places

Sun
Sun, Part Shade

Elevation ?
4193' - 10425'

Annual Precip. ?
30.5" - 149.7"

Summer Precip. ?
0.85" - 5.47"

Coldest Month ?
23.7° F - 45.2° F

Hottest Month ?
45.6° F - 63.3° F

Humidity ?
1.24 vpd - 16.21 vpd

Soil Description
Prefers sandy or loamy soils. Does not grow well in clay soils.

Landscaping Information
Nursery Availability
Never or Almost Never Available

Other Names
Common Names
Broad Leaved Arnica, Broadleaf Arnica


Sources include: Wikipedia. All text shown in the "About" section of these pages is available under the Creative Commons Attribution-ShareAlike License. Plant observation data provided by the participants of the California Consortia of Herbaria, Sunset information provided by Jepson Flora Project. Propogation from seed information provided by the Santa Barbara Botanical Garden from "Seed Propagation of Native California Plants" by Dara E. Emery. Sources of plant photos include CalPhotos, Wikimedia Commons, and independent plant photographers who have agreed to share their images with Calscape. Other general sources of information include Calflora, CNPS Manual of Vegetation Online, Jepson Flora Project, Las Pilitas, Theodore Payne, Tree of Life, The Xerces Society, and information provided by CNPS volunteer editors, with special thanks to Don Rideout. Climate data used in creation of plant range maps is from PRISM Climate Group, Oregon State University, using 30 year (1981-2010) annual "normals" at an 800 meter spatial resolution.

Links:   Jepson eFlora Taxon Page  CalPhotos  Wikipedia  Calflora

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