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U.S. Forest Service

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

Lewisia congdonii. Notice the dark gland dots along the margin of the fan-shaped sepals. Photo © Chris Winchell.

Lewisia congdonii range map. Lewisia congdonii range map.

Lewisia congdonii, Congdon’s bitterroot


  • Lewisia congdonii is restricted the canyons of the Kings and Merced Rivers in the southern Sierra Nevada.
  • A few of the approximately eight occurrences are threatened by road maintenance, herbicide spraying and overcollecting.

Conservation Status

National Forest and Grassland Occurrence

More Information

Additional Photos

Lewisia congdonii. Petal tips are ragged. Photo © John Game.

Lewisia congdonii. Lewisia congdonii. Photo © Jim Shevock.

Lewisia congdonii. This lewisia has a well-developed basal cluster of flat leaves. Photo © John Game.

Lewisia congdonii habitat. Each stem has many small flowers, held well above the basal leaves. Photo © Dana York.

Lewisia congdonii habitat. Congdon’s lewisia grows in pockets of soil on north-facing rock outcrops in the central Sierra Nevada. Photo © Jennie Haas.

Lewisia congdonii habitat. Lewisia congdonii habitat. Photo © Jim Shevock.