Bradley's Spleenwort -

: Research suggests that Bradley’s spleenwort has actually "formed" multiple times in different locations from independent hybridization events between its parent species. Habitat and Distribution

: Its fronds are relatively small, typically ranging from 4 to 20 cm (about 1.5 to 8 inches) in length. bradley's spleenwort

: The lower half of the stalk is a distinct shiny, reddish-brown or blackish color, while the upper half (the rachis) transitions to green. : Research suggests that Bradley’s spleenwort has actually

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

Bradley's spleenwort is highly specialized and is often referred to as an "Appalachian spleenwort".