Slickspot peppergrass was listed as a candidate species by the USFWS in October 1999 and had been petitioned for listing under the ESA. In January 2004 the USFWS found that a listing was not warranted based on the extent of its range and abundance, as well as the development of a Candidate Conservation Agreement to preserve the species.
The plant ranges from 4 to 12 inches in height, and has many tiny, white flowers that resemble the garden flower sweet alyssum. Slickspot peppergrass typically grows in “slickspots,” which are small areas within larger sagebrush habitat. The plant is found only in southwest Idaho and includes Ada, Canyon, Elmore, Gem, Owyhee and Payette Counties. In order to conserve the plant and to preclude the need for a federal listing, a number of private, state and federal entities developed a Candidate Conservation Agreement (CCA) for the plant. To view the Slickspot peppergrass CCA, see below.
The State of Idaho recently commented on the U.S. Fish and Wildlife Service's proposed slickspot peppergrass critical habitat: read Idaho's comments [PDF] 10 pages
Candidate Conservation Agreement for Slickspot Peppergrass [PDF] 32 pages - 8MB