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noun
Any of several tropical ferns having more or less sword-shaped fronds including one from which the Boston fern developed.
is a specific kind of: fern.
is a broader term that covers: Boston fern, Nephrolepis exaltata, Nephrolepis exaltata bostoniensis | basket fern, Nephrolepis pectinata, toothed sword fern.
is a member of: genus Nephrolepis, Nephrolepis.
Find more on sword fern elsewhere: etymology - rhymes - Wikipedia.
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