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sword fern
DEFINITIONS OF:
sword fern
1
n
any of several tropical ferns having more or less sword-shaped fronds including one from which the Boston fern developed
Types:
Boston fern
,
Nephrolepis exaltata
,
Nephrolepis exaltata bostoniensis
a sword fern with arching or drooping pinnate fronds; a popular houseplant
Nephrolepis pectinata
,
basket fern
,
toothed sword fern
tropical American fern cultivated for its finely divided greyish-green foliage; West Indies and southern Mexico to Peru and Brazil
Type of:
fern
any of numerous flowerless and seedless vascular plants having true roots from a rhizome and fronds that uncurl upward; reproduce by spores
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