Bradley's | Spleenwort

: It is listed as endangered in states like Illinois , Indiana, and Pennsylvania, and threatened in Ohio .

: Initially, the hybrid was sterile, but through a rare natural process of chromosome doubling, it became a fertile, independent species. bradley's spleenwort

Bradley's spleenwort - Illinois Department of Natural Resources : It is listed as endangered in states

This fern has a fascinating evolutionary history known as . It originated as a hybrid between the Mountain Spleenwort ( A. montanum ) and the Ebony Spleenwort ( A. platyneuron ). It originated as a hybrid between the Mountain

: Major threats include habitat destruction from quarrying and mining, mechanical disturbance from rock climbing, and overshading caused by invasive vines or tree growth.

Bradley's spleenwort is a tufted perennial fern that grows in tight clusters. To identify it, look for these specific features: