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|Noun||1.||genus Nephrolepis - small genus of tropical ferns; sometimes placed in Polypodiaceae|
fern genus - genera of ferns and fern allies
family Oleandraceae, Oleandraceae - one of a number of families into which Polypodiaceae has been subdivided in some classification systems
sword fern - any of several tropical ferns having more or less sword-shaped fronds including one from which the Boston fern developed