How to sign: any of various chiefly rock-inhabiting ferns of the genus Asplenium
Categories: fern
Within this category: black spleenwort, black-stem spleenwort, Bradley's spleenwort, ebony spleenwort, green spleenwort, lanceolate spleenwort, lobed spleenwort, maidenhair spleenwort, mountain spleenwort, walking fern, wall rue