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U.S. Forest Service

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

Astragalus webberi. Flowers are long and pale yellow. Photo by Steve Matson.

Astragalus webberi range map. Astragalus webberi range map.

Astragalus webberi, Webber's milkvetch


  • Development is a threat on private lands.
  • Other threats include road widening and compaction by vehicles.

Conservation Status

National Forest and Grassland Occurrence

More Information

Astragalus webberi. This species is an upright, spreading perennial herb with silvery compound leaves. Photo by Jim Belsher-Howe.

Astragalus webberi. Stems are spreading or erect, and die back to the ground each winter. The skeletons of last year’s stems can be seen below the current year’s growth. Photo by Steve Matson.

Astragalus webberi. Leaves have a silvery sheen from dense covering of flattened hairs. Fruits are hairless. Photo by Dean Wm. Taylor.

Astragalus webberi habitat. Webber’s milkvetch grows at forest edges in openings on well-drained soils. Most occurrences are along highways on cutbanks or just within the forest edge. Geographic range is very narrow, a small area of California’s northern Sierra Nevada. Photo by Steve Matson.