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Epilobium howellii
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Subalpine Fireweed
( Epilobium howellii )
Epilobium howellii
More Photos at CalPhotos
More Info at Jepson eFlora
Calflora
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About Subalpine Fireweed (Epilobium howellii)
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Epilobium howellii
is an uncommon species of flowering plant in the evening primrose family known by the common names Yuba Pass Willowherb and Subalpine Fireweed (though it is not a true fireweed). It is endemic to the High Sierra Nevada of California, where it is known from only about 20 occurrences. It grows in wet mountain habitat such as meadows, often in the presence of mosses and willows, between 2000 and 2700 meters in elevation. The plant was first collected in 1975 at Yuba Pass on Highway 49 in Sierra County, California, and described to science as a new species in 1992.
Plant Description
Plant Type
Perennial herb
Size
7.9 in tall
Wildlife Supported
Butterflies & moths hosted ( 9
likely
* )
SHOW ALL
*
White-lined Sphinx
Hyles lineata
Hyles lineata
*
Black-Banded Carpet
Antepirrhoe semiatrata
Antepirrhoe semiatrata
*
Clark's Day Sphinx Moth
Proserpinus clarkiae
Proserpinus clarkiae
*
Double-Banded Carpet
Spargania magnoliata
Spargania magnoliata
*
Langston's Forester
Alypia langtoni
Alypia langtoni
*
Tacoma Cutworm
Trichordestra tacoma
Trichordestra tacoma
*
Fireweed Clearwing
Albuna pyramidalis
Albuna pyramidalis
Landscaping Information
Common uses
Bird Gardens, Hummingbird Gardens
Natural Setting
Climate
Annual Precipitation: 33.3" - 69.2", Summer Precipitation: 1.52" - 1.99", Coldest Month: 20.5" - 33.7", Hottest Month: 50.7" - 57.6", Humidity: 0.77" - 13.62", Elevation: 6464" - 8830"
Alternative Names
Common Names
: Yuba Pass Willowherb
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Subalpine Fireweed
Epilobium howellii
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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