Nephrolepis is a genus of ferns commonly known as sword ferns. These plants are characterized by their long, arching fronds that resemble swords, hence the name. They thrive in moist, shaded environments and are often found in tropical and subtropical regions. One of the most popular species within this genus is Nephrolepis exaltata, commonly known as the Boston fern. This fern is widely cultivated as a houseplant due to its attractive foliage and air-purifying qualities. Nephrolepis ferns are also used in landscaping for their lush appearance and ability to tolerate various soil conditions.