Thelypteris palustris, the marsh fern,[4] or eastern marsh fern,[5] is a species of fern native to eastern North America and across Eurasia. It prefers to grow in swamps, bogs, wet fields or thickets, fresh tidal and nontidal marshes, or wooded streambanks. The species epithet palustris is Latin for "of the marsh" and indicates its common habitat.[6] It is the only known host plant for Fagitana littera, the marsh fern moth.[7]

Thelypteris palustris

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Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Division: Polypodiophyta
Class: Polypodiopsida
Order: Polypodiales
Suborder: Aspleniineae
Family: Thelypteridaceae
Genus: Thelypteris
Species:
T. palustris
Binomial name
Thelypteris palustris
Synonyms[3]
List
    • Acrostichum thelypteris L.
    • Aspidium palustre Gray
    • Aspidium thelypteris (L.) Sw.
    • Aspidium thelypteris f. pufferae B.L.Rob.
    • Athyrium thelypteris (L.) Spreng.
    • Dryopteris thelypteris (L.) A.Gray
    • Dryopteris thelypteris f. haleana (Fernald) C.F.Reed
    • Dryopteris thelypteris var. haleana (Fernald) M.Broun ex Weath.
    • Dryopteris thelypteris var. koreana Nakai
    • Dryopteris thelypteris f. linearis (Farw.) M.Broun
    • Dryopteris thelypteris subsp. pubescens (G.Lawson) Hultén
    • Dryopteris thelypteris var. pubescens (G.Lawson) Nakai
    • Dryopteris thelypteris f. pufferae (A.A.Eaton) A.Prince ex Weath.
    • Dryopteris thelypteris f. suaveolens (Clute) A.Prince ex Weath.
    • Dryopteris tremula Christ
    • Filix thelypteris (L.) Farw.
    • Filix thelypteris f. frondosa Farw.
    • Filix thelypteris var. linearis Farw.
    • Filix-mas thelypteris (L.) Farw.
    • Filix-mas thelypteris f. frondosa Farw.
    • Filix-mas thelypteris var. linearis Farw.
    • Filix-mas thelypteris var. pubescens Farw.
    • Filix-mas thelypteris subvar. frondosa Farw.
    • Hemestheum thelypteris (L.) Newman
    • Lastrea palustris (Schott) J.Sm.
    • Lastrea thelypteris (L.) C.Presl
    • Lastrea thelypteris var. pubescens G.Lawson
    • Nephrodium thelypteris (L.) Strempel
    • Nephrodium thelypteris f. pufferae A.A.Eaton
    • Nephrodium thelypteris f. suaveolens Clute
    • Polypodium palustre Salisb.
    • Polypodium pterioides Lam.
    • Polypodium thelypteris (L.) Weis
    • Polystichum convolutum Dulac
    • Polystichum thelypteris (L.) Roth
    • Tectaria pterioides (Lam.) Lag., Garcia & Clem.
    • Thelypteris confluens var. pubescens (G.Lawson) J.S.Pringle
    • Thelypteris palustris f. frondosa (Farw.) Gruber
    • Thelypteris palustris var. haleana Fernald
    • Thelypteris palustris f. linearis (Farw.) C.F.Reed
    • Thelypteris palustris f. pubescens (G.Lawson) Clute
    • Thelypteris palustris var. pubescens Fernald
    • Thelypteris palustris f. pufferae (A.A.Eaton) C.F.Reed
    • Thelypteris palustris f. pufferae L.B.Sm.
    • Thelypteris palustris f. serratipinnula Gruber
    • Thelypteris palustris f. suaveolens (Clute) C.F.Reed
    • Thelypteris palustris f. suaveolens Fernald
    • Thelypteris thelypterioides subsp. glabra Holub
    • Thelypteris thelypteris (L.) Nieuwl.

Description

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Fronds of T.palustris are erect to ascending with an elliptic to lanceolate form. They are 1-2.5 ft long and 4-7 inches across and have 10-40 pairs of leaflets. Its leaves are pinnately lobed, with the middle pinna being the widest. The leaves are more than 6 inches long, and the 3-6 inches wide. Sori are present on the undersides of the smaller fertile leaves.[8]

The stem is tan to purplish and hairless.

Uses

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T.palustris has been studied for potential uses in phytoremediation. T.palustris has been shown to significantly reduce the amount of Zn2+ and Cu2+, which are the main outputs of heavy metal from intensive livestock production, ex situ.[9] There have been mixed results for whether T.palustris would be a good candidate for remediation of arsenic soil contamination.[10][11]

Subtaxa

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The following subspecies are accepted:[3]

  • Thelypteris palustris subsp. palustris
  • Thelypteris palustris subsp. pubescens (G.Lawson) Fraser-Jenk.

References

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  1. ^ "NatureServe Explorer 2.0 - Thelypteris palustris Eastern Marsh Fern". explorer.natureserve.org. Retrieved 9 October 2020.
  2. ^ Kavak, S. (2014). "Thelypteris palustris". IUCN Red List of Threatened Species. 2014: e.T164136A42331187. doi:10.2305/IUCN.UK.2014-1.RLTS.T164136A42331187.en. Retrieved 26 May 2024.
  3. ^ a b "Thelypteris palustris Schott". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 16 April 2022.
  4. ^ BSBI List 2007 (xls). Botanical Society of Britain and Ireland. Archived from the original (xls) on 2015-06-26. Retrieved 2014-10-17.
  5. ^ NRCS. "Thelypteris palustris". PLANTS Database. United States Department of Agriculture (USDA). Retrieved 9 December 2015.
  6. ^ Archibald William Smith A Gardener's Handbook of Plant Names: Their Meanings and Origins , p. 258, at Google Books
  7. ^ Pocketguide to Eastern Wetlands By T. Travis, Shanda Brown p.57, 2014
  8. ^ "Thelypteris palustris var. pubescens (Eastern Marsh Fern, Marsh Fern) | North Carolina Extension Gardener Plant Toolbox". plants.ces.ncsu.edu. Retrieved 2023-06-23.
  9. ^ Stroppa, Nadia; Onelli, Elisabetta; Hejna, Monika; Rossi, Luciana; Gagliardi, Assunta; Bini, Luca; Baldi, Antonella; Moscatelli, Alessandra (2020-02-01). "Typha latifolia and Thelypteris palustris behavior in a pilot system for the refinement of livestock wastewaters: A case of study". Chemosphere. 240: 124915. Bibcode:2020Chmsp.24024915S. doi:10.1016/j.chemosphere.2019.124915. hdl:2434/678818. ISSN 0045-6535. PMID 31563105. S2CID 203592539.
  10. ^ Anderson, LaShunda L.; Walsh, Maud; Roy, Amitava; Bianchetti, Christopher M.; Merchan, Gregory (February 2011). "The potential of Thelypteris palustris and Asparagus sprengeri in phytoremediation of arsenic contamination". International Journal of Phytoremediation. 13 (2): 177–184. doi:10.1080/15226511003671346. ISSN 1522-6514. PMID 21598785. S2CID 25576688.
  11. ^ Anderson, LaShunda; Walsh, Maud M. (2007-07-01). "Arsenic uptake by common marsh fern Thelypteris palustris and its potential for phytoremediation". Science of the Total Environment. Arsenic in the Environment: Biology and Chemistry. 379 (2): 263–265. Bibcode:2007ScTEn.379..263A. doi:10.1016/j.scitotenv.2006.09.032. ISSN 0048-9697. PMID 17113631.