any of a genus (Asplenium, family Aspleniaceae) of ferns with simple or compound fronds and elongated sori
See spleenwort in American Heritage Dictionary 4
noun
Any of numerous widely distributed evergreen ferns of the genus Asplenium, having undivided to featherlike fronds and oblong to linear sori located on the small veins.
Origin:
Origin: So called because it was thought to cure spleen disorders