Asplenium bradleyi D.C. Eaton. Phen: Apr-Oct. Hab: Dry outcrops of felsic sedimentary or metasedimentary rocks, such as sandstone, quartzite, or metaquartzite, at low to moderate elevations. Dist: Se. NY, PA, MD, OH, KY, s. IL, and MO south to c. NC, c. GA, AL, TN, and AR, reaching its greatest abundance in the Ozarkian highlands.
Origin/Endemic status: Native
Taxonomy Comments: This species is a fertile allotetraploid derived from hybridization between A. montanum and A. platyneuron. Its chromosome complement can be symbolized MMPP. The sterile hybrid has also been found in NC; its chromosome complement is MP.
Synonymy: = Ar, C, F, FNA2, G, Il, K1, K3, K4, Mo1, NY, Ok, Pa, RAB, S13, Sf, Tn, Va, W, WV; = Asplenium ×bradleyi