Skip to main content

U.S. Forest Service

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

Allium jepsonii. Petals and sepals are the same length in this onion species, and the stamens do not protrude from the flowers. Photo by Dean Wm. Taylor.

Allium jepsonii habitat. Allium jepsonii is restricted to serpentine outcrops and soils in the foothills of California’s northern and central Sierra Nevada. Photo by Barbara Castro.

Allium jepsonii range map. Allium jepsonii range map.

Allium jepsonii, Jepson‘s onion


  • Allium jepsonii is known from only two occurrences in two counties (Butte and Tuolumne)
  • Degree of threat unknown

Conservation Status

National Forest and Grassland Occurrence

More Information