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Definition of Holly fern
1. Noun. Any of various ferns of the genus Polystichum having fronds with texture and gloss like holly.
Generic synonyms: Fern
Group relationships: Genus Polystichum, Polystichum
Specialized synonyms: Braun's Holly Fern, Polystichum Braunii, Prickly Shield Fern, Northern Holly Fern, Polystichum Lonchitis, Polystichum Scopulinum, Western Holly Fern
Group relationships: Genus Polystichum, Polystichum
Specialized synonyms: Braun's Holly Fern, Polystichum Braunii, Prickly Shield Fern, Northern Holly Fern, Polystichum Lonchitis, Polystichum Scopulinum, Western Holly Fern
2. Noun. Tropical Old World fern having glossy fronds suggestive of holly; sometimes placed in genus Polystichum.