Asplenium Platyneuron, also known as ebony spleenwort, is a fern species native to eastern North America. It has many common synonyms such as black spleenwort, simply ebony fern, and smooth black spleenwort. These names derive from the plant's distinguishing characteristics, with the fronds being dark green to black in color, particularly when mature. Other synonyms include Spleenwort Asplenium and Asplenium platyneuron Beyrich. This plant typically grows on rocks, walls, and in rocky soil, with its highest concentration found in limestone outcroppings. It has been used in traditional medicine by Native American cultures for its healing properties and is sometimes used in modern herbal remedies.