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Eriogonum evanidum
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Vanishing Wild Buckwheat
( Eriogonum evanidum )
Eriogonum evanidum
More Photos at CalPhotos
More Info at Jepson eFlora
Calflora
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About Vanishing Wild Buckwheat (Eriogonum evanidum)
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Eriogonum evanidum
is a rare species of wild buckwheat known by the common name vanishing wild buckwheat. It is native to southern California and Baja California, where it has been collected from widely scattered areas. Most historical occurrences are now extirpated and the plant has not been collected since 1967. Some sources suggest that it is probably extinct. The plant was described as a new species in 2004 using specimens that were set aside from a collection of Eriogonum foliosum on the basis of some morphological characteristics. The specimens came from several locations in the southern California mountains, including Bear Valley in the San Bernardino Mountains and Pine Valley east of San Diego. This is an annual herb producing thin, erect stems about 10 or 20 centimeters tall surrounded at the base by small, woolly leaves up to a centimeter long by a centimeter wide. The flowering stem branches from the main stem and is a few centimeters long. It is studded with tiny clumps of yellowish flowers each around a millimeter long.
Plant Description
Plant Type
Annual herb
Size
4 - 7.9 in tall
Flower Color
Cream, Pink, White, Yellow
Wildlife Supported
Butterflies & moths hosted ( 30
likely
* )
SHOW ALL
*
Gray Hairstreak
Strymon melinus
Strymon melinus
*
Acmon Blue
Icaricia acmon
Icaricia acmon
*
The Brown Elfin
Callophrys augustinus
Callophrys augustinus
*
Mormon Metalmark
Apodemia mormo
Apodemia mormo
*
Dotted Blue
Euphilotes enoptes
Euphilotes enoptes
*
Behr's Metalmark
Apodemia virgulti
Apodemia virgulti
*
Bramble Hairstreak
Callophrys dumetorum
Callophrys dumetorum
Landscaping Information
Common uses
Butterfly Gardens, Bee Gardens
Natural Setting
Climate
Annual Precipitation: 18.1" - 27.8", Summer Precipitation: 1.26" - 2.47", Coldest Month: 33.2" - 43.7", Hottest Month: 60.5" - 71.2", Humidity: 2.44" - 22.42", Elevation: 3671" - 7421"
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Vanishing Wild Buckwheat
Eriogonum evanidum
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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