San Clemente Island paintbrush (Castilleja grisea)
San Clemente Island paintbrush is endemic (restricted) to San Clemente Island, which is located 64 miles west of San Diego, off the southern California coast. It is generally under 2 ft. tall and is ash-gray in color with densely hairy leaves that are alternate and linear. The plant's fruit is a semi-woody capsule, about .5 inches long, and bears many small seeds.
Originally listed as endangered, the U.S. Navy, which owns and manages San Clemente Island, has worked to alleviate some of the threats to the plant. As a result, the plant now occupies a larger area on the Island and the Service has reclassified the plant from endangered to threatened, meaning it is no longer in danger of extinction.
A photo of the species may be viewed on Flickr.