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Original file ‎(3,872 × 2,592 pixels, file size: 2.31 MB, MIME type: image/jpeg)

Description
English: Astragalus lentiginosus var. coachellae — Coachella Valley milk-vetch, an endangered plant.
  • The Coachella Valley is located at the northern extension of the Colorado Desert and is bordered by the Salton Sea to the south and the Little San Bernandino Mountains to the north. Sand that washes down drainages during flood events accumulates at the bottom of the drainages, then is dispersed throughout the Valley by the continual high winds that blow through the area. This ever-shifting sand forms a complex system of sand dunes that support a variety of native desert species.
  • Originally, about 270 square miles of the Coachella Valley may have been covered with loose, wind blown sand. Disruption of the sand transport corridors and the impacts of development have eliminated the majority of the historic “blowsand habitat” in the Coachella Valley. The total remaining “blowsand” habitat is about 50 square miles in size and occurs in relatively fragmented patches from San Gorgonio Pass southeast through the Valley to Indio, California.
Why is the sand dune ecosystem important?
  • The sand dune ecosystem of the Coachella Valley supports a variety of animals and plants specially adapted to living in the harsh desert environment. These distinct and sometimes rare species have evolved because the blowsand deposits of the Valley are relatively isolated from other areas by the surrounding mountain ranges. The threatened Coachella Valley fringe-toed lizard, the endangered Coachella Valley milk vetch, Coachella Valley round-tailed ground squirrel, Coachella Valley giant sand treader cricket, and the Coachella Valley Jerusalem cricket are among the variety of species that occur in this specialized “blowsand” habitat. (USFWS)
Date
Source Flickr: Coachella Valley milk vetch
Author Pacific Southwest Region U.S. Fish and Wildlife Service
Permission
(Reusing this file)
This image, which was originally posted to Flickr, was uploaded to Commons using Flickr upload bot on 28 April 2013, 20:37 by Melchoir. On that date, it was confirmed to be licensed under the terms of the license indicated.
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attribution
This file is licensed under the Creative Commons Attribution 2.0 Generic license.
You are free:
  • to share – to copy, distribute and transmit the work
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Under the following conditions:
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Public domain
This image or recording is the work of a U.S. Fish and Wildlife Service employee, taken or made as part of that person's official duties. As a work of the U.S. federal government, the image is in the public domain. For more information, see the Fish and Wildlife Service copyright policy.

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United States Fish and Wildlife Service
United States Fish and Wildlife Service

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inception

1 April 2008

captured with

Nikon D40x

exposure time

0.003125 second

f-number

9

focal length

35 millimetre

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100

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image/jpeg

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23b383f10e839618bde74fea3438087efa3c16d5

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2,592 pixel

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3,872 pixel

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current20:37, 28 April 2013Thumbnail for version as of 20:37, 28 April 20133,872 × 2,592 (2.31 MB)Flickr upload botUploaded from http://flickr.com/photo/54430347@N04/5513525598 using Flickr upload bot
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source: https://en.wikipedia.org/wiki/File:Coachella_Valley_milk_vetch.jpg

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