Critically Imperiled Plant Profile
(Not Listed or Proposed under the Endangered Species Act)
The plant is found on gravel meadow margins between lodgepole pine forest and sagebrush scrub communities on the Kern Plateau of the southern Sierra Nevada. Photo by Kathleen Nelson.
This species, like other sand-verbenas, are not true verbenas at all, but belong to the four-o’clock family (Nyctaginaceae). Photo by Sue Weis.
Abronia alpina range map.
Abronia alpina, Ramshaw Meadows sand-verbena
Threats, drawn from U. S. Fish and Wildlife Service Species Assessment and Listing Priority Assignment Form (March 2008) (PDF, 270 KB)
- Abronia alpina is endemic to alpine meadows of Tulare County in the Sierra Nevada of California, where it is known from only one fairly extensive extant occurrence found in two nearby meadow systems
- Lodgepole pine encroachment into the meadow system affects habitat suitability
- Drying out of the meadow system from lowering of the water table due to downcutting of the South Fork of the Kern River, at least partly due to livestock grazing and trampling
- Trampling by packstock and campers
- Cattle use currently,is not a threat due to the 2001 implementation of a ten year moratorium that prohibits cattle from all Abronia alpina locations
- Gopher activities may result in significant destruction of Abronia alpina
- Poor seed dispersal capability contributes to the plant’s slowness to recover from disturbance
National Forest and Grassland Occurrence