Bradley's Spleenwort (Free Access)
Bradley's spleenwort is a tufted perennial fern that grows in tight clusters. To identify it, look for these specific features:
: It is listed as endangered in states like Illinois , Indiana, and Pennsylvania, and threatened in Ohio . bradley's spleenwort
: It prefers very acidic, thin soil (pH 3.5–5.0) in exposed, often sunny rock fissures. Because it thrives in such hostile conditions where other plants cannot grow, it faces little competition from more aggressive species. Conservation Status Bradley's spleenwort is a tufted perennial fern that
Due to its very specific habitat requirements and rare occurrence, it is considered a species of special concern in many states. Because it thrives in such hostile conditions where
: Major threats include habitat destruction from quarrying and mining, mechanical disturbance from rock climbing, and overshading caused by invasive vines or tree growth.
( Asplenium bradleyi ) is a rare, small evergreen fern found primarily in the east-central United States. Named after Professor Frank Howe Bradley, who first discovered it in Tennessee in 1871, it typically thrives in the specialized, harsh environment of acidic rock crevices on sandstone or granite cliffs. Key Characteristics & Identification
: Initially, the hybrid was sterile, but through a rare natural process of chromosome doubling, it became a fertile, independent species.