Sensitive fern is a term used for a type of fern known for its delicate fronds that are easily disrupted. This genus, Onoclea, consists of only one type of fern. However, other common names are often used to refer to sensitive fern, such as bead fern, chain fern, and interrupted fern. This fern is commonly found in moist, shaded areas across North America and is known for its unique reproductive system. Its spores are located in bead-like structures, called sporangia, which are located on the fronds. The sensitivity of the fern is due to its ability to quickly wilt and become damaged, making it a unique and delicate addition to any landscape.