Bradley's spleenwort is highly specialized and is often referred to as an "Appalachian spleenwort".
: Initially, the hybrid was sterile, but through a rare natural process of chromosome doubling, it became a fertile, independent species.
: The lower half of the stalk is a distinct shiny, reddish-brown or blackish color, while the upper half (the rachis) transitions to green. bradley's spleenwort
Bradley's spleenwort - Illinois Department of Natural Resources
: 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 highly specialized and is often
Bradley's spleenwort is a tufted perennial fern that grows in tight clusters. To identify it, look for these specific features:
: On the underside of mature fronds, you can find small, rusty-brown clusters called sori, which produce spores between June and December. Unique Hybrid Origins To identify it, look for these specific features:
: The frond consists of 6 to 14 pairs of triangular, toothed leaflets. The lowest pair are often the largest, and they gradually decrease in size toward the tip.