Sword fern

Sword fern is a common name for several ferns and may refer to:


 * Nephrolepis, a tropical genus of ferns, especially:
 * Nephrolepis exaltata, commonly cultivated as a houseplant, including the Boston fern
 * Polystichum, a cosmopolitan genus of ferns, especially:
 * Polystichum munitum, native to western North America
 * Giant swordfern