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Category: Polypodiophyta

Equisetum telmateia (Giant Horsetail)

May 31, 2023 Dan Nelson 2 Comments

I love the texture that the branched horsetails give to the areas that they inhabit, but I’ve been reluctant to…

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Posted in: Equisetaceae, Equisetales, Equisetum, Plants, Polypodiophyta, Polypodiopsida, Species Profiles Filed under: Equisetum telmateia, Giant Horsetail

Dryopteris arguta (Coastal Wood Fern)

January 15, 2023 Dan Nelson 3 Comments

Thanks to a tip from Caroline Skinner, a regular reader of these profiles, I was able to find my first…

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Posted in: Dryopteridaceae, Dryopteris, Plants, Polypodiales, Polypodiophyta, Polypodiopsida, Species Profiles Filed under: Coastal Wood Fern, Dryopteris arguta

Polypodium scouleri

December 1, 2022 Dan Nelson 9 Comments

I made a mistake on my recent trip to the coast by assuming that all of the Polypodium to be found where…

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Posted in: Plants, Polypodiaceae, Polypodiales, Polypodiophyta, Polypodiopsida, Polypodium, Species Profiles, Tracheophytes Filed under: Polypodium scouleri

Struthiopteris (Blechnum) spicant (Deer Fern)

August 6, 2022 Dan Nelson 4 Comments

I recently spent a day around Warrenton, Oregon, helping my nbo Morgan’s partner Juniper move their stuff. After the heavy…

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Posted in: Blechnaceae, Plants, Polypodiales, Polypodiophyta, Polypodiopsida, Species Profiles, Struthiopteris, Tracheophytes Filed under: Blechnum spicant, Deer Fern, Struthiopteris spicant

Equisetum hyemale

July 29, 2022 Dan Nelson 8 Comments

I don’t know the horsetails well, except to say ‘that’s a horsetail’. In fact, when I took these photos it…

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Posted in: Equisetaceae, Equisetales, Equisetum, Plants, Polypodiophyta, Polypodiopsida, Species Profiles, Tracheophytes Filed under: Common scouring rush, Equisetum hyemale, Rough Horsetail, Scouringrush

Polypodium amorphum

January 29, 2022 Dan Nelson 5 Comments

Thanks to a tip from Ash Gill, who kindly provided not only excellent directions complete with distances and verifiable landmarks…

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Posted in: Plants, Polypodiaceae, Polypodiophyta, Polypodiopsida, Polypodium, Species Profiles, Tracheophytes Filed under: Polypodium amorphum

Pteridium aquilinum (Bracken Fern)

January 8, 2022 Dan Nelson 4 Comments

So, here is part three of my series on distinguishing between some of the large pinnate ferns of our region.…

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Posted in: Dennstaedtiaceae, Plants, Polypodiales, Polypodiophyta, Polypodiopsida, Pteridium, Species Profiles, Tracheophytes Filed under: Bracken Fern, Pteridium aquilinum

Dryopteris expansa

January 7, 2022 Dan Nelson 2 Comments

This is part 2 of my 3 part series on large, pinnate ferns commonly found in proximity to each other…

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Posted in: Dryopteridaceae, Dryopteris, Plants, Polypodiales, Polypodiophyta, Polypodiopsida, Species Profiles, Tracheophytes Filed under: Dryopteris expansa

Athyrium filix-femina (Lady Fern)

January 6, 2022 Dan Nelson 6 Comments

Over the next few days I’ll be doing comparison profiles for 3 large, pinnate ferns that are commonly found in…

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Posted in: Athyriaceae, Athyrium, Plants, Polypodiales, Polypodiophyta, Polypodiopsida, Species Profiles, Tracheophytes Filed under: Athyrium filix-femina, Lady Ferns

Azolla filiculoides

September 6, 2021 Dan Nelson 6 Comments

Although I had read about these interesting, and rather beautiful, tiny ferns in the family Salviniaceae (water ferns), I had…

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Posted in: Azolla, Plants, Polypodiophyta, Polypodiopsida, Salviniaceae, Salviniales, Species Profiles, Tracheophytes Filed under: Azolla filiculoides, Duckweed Fern, Pacific Mosquito Fern

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