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| Ferns | | Ferns |
| {{Automatic taxobox
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| | name = Ferns
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| | image = Athyrium filix-femina.jpg
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| | image_caption = A fern unrolling a young [[frond]]<!--Don't change caption to mention species, because this is not A. filix-femina in spite of the file name. User:Peter coxhead -->
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| | taxon = Polypodiopsida
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| | authority = Cronquist, Takht. & W.Zimm.
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| | subdivision_ranks = Subclasses{{sfn|Pteridophyte Phylogeny Group|2016}}
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| | subdivision =
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| * Extant
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| ** [[Equisetidae]]
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| ** [[Marattiidae]]
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| ** [[Ophioglossidae]]
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| ** [[Polypodiidae (plant)|Polypodiidae]]
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| * Extinct
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| ** †[[Cladoxylopsida]]
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| ** †[[Zygopteridales]]
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| ** †[[Stauropteridales]]
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| ** †[[Rhacophytales]]
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| | fossil_range = {{fossil range|Late Devonian|0|Middle [[Devonian]]{{sfn|Stein et al|2007}}—[[Holocene|Present]]}}
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| == '''Taxonomy''' == | | == '''Taxonomy''' == |
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| =='''Morphology'''== | | =='''Morphology'''== |
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| | ==='''Leaves'''=== |
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| | ==='''Roots'''=== |
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| | ==='''Stems'''=== |
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