USDA Forest Service Celebrating Wildflowers
Critically Imperiled Plant Profile
(Not Listed or Proposed under the Endangered Species Act)
The genus Ivesia, in the rose family (Rosaceae), consists of about thirty species of western North America; many are narrowly distributed California endemics. Photo by Jordan Zylstra.
Ivesia callida range map.
Ivesia callida, Tahquitz mousetail
- There are no known threats.
National Forest and Grassland Occurrence
Endemic to a small area in the southern mountains of California, Ivesia callida is known from two existing occurrences in the San Jacinto Wilderness area of Riverside County. Each contains an estimated 10,000 plants. Photo by Jordan Zylstra.
Ivesia callida. Photo by Thomas Stoughton. Photo by Jordan Zylstra.
The plants grow in cracks in granodiorite outcrops at about 8,000 feet elevation. Photo by Jordan Zylstra.
U.S. Forest Service
1400 Independence Ave., SW, Mailstop Code: 1103
Washington DC 20250-1103
Last modified: Wednesday, 13-Oct-2010 13:35:44 CDT