| NOUN | plant | Thelypteris palustris, marsh fern, Dryopteris thelypteris | fern having pinnatifid fronds and growing in wet places |
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| Meaning | fern having pinnatifid fronds and growing in wet places; cosmopolitan in north temperate regions. | |
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| Synonyms | marsh fern, Dryopteris thelypteris | |
| Member of | Thelypteris, genus Thelypteris | marsh ferns |
| Narrower | snuffbox fern, meadow fern, Thelypteris palustris pubescens, Dryopteris thelypteris pubescens | fern of northeastern North America |
| Broader | fern | Any of numerous flowerless and seedless vascular plants having true roots from a rhizome and fronds that uncurl upward |
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