Asplenium adiantum-nigrum is commonly known as the Black Spleenwort, and is a species of fern found in temperate regions of Europe and Asia. Some of its synonyms include Adiantum nigrum, Asplenium nigrum, Asplenium adiantum, and Polypodium adiantum-nigrum. In traditional herbal medicine, the Black Spleenwort was used to treat respiratory problems, coughs, and skin conditions. This fern is also popular in ornamental gardening due to its dark green, glossy foliage. Its versatile nature means it can be grown as a houseplant, in rock gardens, or as a groundcover. Overall, Asplenium adiantum-nigrum is a fascinating fern with a diverse range of common names and uses.