Critically Imperiled Plant Profile
(Not Listed or Proposed under the Endangered Species Act)
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.
National Forest and Grassland Occurrence
Petal tips are ragged. Photo © John Game.
Lewisia congdonii. Photo © Jim Shevock.
This lewisia has a well-developed basal cluster of flat leaves. Photo © John Game.
Each stem has many small flowers, held well above the basal leaves. Photo © Dana York.
Congdon’s lewisia grows in pockets of soil on north-facing rock outcrops in the central Sierra Nevada. Photo © Jennie Haas.