USDA Forest Service Celebrating Wildflowers

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Critically Imperiled Plant Profile
(Not Listed or Proposed under the Endangered Species Act)

Clarkia lingulata.
Positioning the stigma well away from pollen-bearing anthers is a strategy to prevent self-pollination. Photo by Chris Winchell.

Merced clarkia competes for space with weedy invasives in front of a native fern.
Merced clarkia competes for space with weedy invasives in front of a native fern. Photo by Chris Winchell.

Merced River canyon.
This species is restricted to the Merced River canyon of California's central Sierra Nevada. Photo by Harlan Lewis, courtesy California Native Plant Society.

Clarkia lingulata range map.
Clarkia lingulata range map.

Clarkia lingulata, Merced clarkia

Threats

  • The larger of the two populations was damaged by herbicide spraying in the past. Threats by road construction and maintenance activities, power line maintenance, and landslides are expected to decrease due to protection measures stated in a Memorandum of Understanding signed by the U.S. Forest Service, Caltrans, and Pacific Gas and Electric.
  • Road maintenance, grazing, fire, exotics and slumping of slope still exist as threats.
  • Susceptible to random natural events that decimate the species.

Conservation Status

National Forest and Grassland Occurrence

More Information

U.S. Forest Service
Rangeland Management
Botany Program
1400 Independence Ave., SW, Mailstop Code: 1103
Washington DC 20250-1103

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Location: http://www.fs.fed.us/wildflowers/rareplants/profiles/critically_imperiled/clarkia_lingulata/index.shtml
Last modified: Wednesday, 13-Oct-2010 14:35:30 EDT