English edit

 
Nephrolepis sp.

Noun edit

sword fern (plural sword ferns)

 
western sword fern (Polystichum munitum)
  1. Any fern in the genus Nephrolepis, typically with long, straight-sided fronds shaped like a two-edged sword, and widely grown as houseplants.
    Hyponyms: Boston fern, kupukupu
  2. Some ferns in the genus Polystichum which look like the typical Nephrolepis sword ferns.