View source for Dryopteris cristata

{{Treatment/ID
|accepted_name=Dryopteris cristata
|accepted_authority=(Linnaeus) A. Gray
|publications={{Treatment/Publication
|title=Manual
|place=631. 1848
|year=1848
}}
|common_names=Crested wood fern;dryoptère à crêtes
|basionyms={{Treatment/ID/Synonym
|name=Polypodium cristatum
|authority=Linnaeus
}}
|synonyms=
|hierarchy=Dryopteridaceae;Dryopteris;Dryopteris cristata
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Dryopteridaceae]]</div><div class="higher-taxon"><small>genus</small>[[Dryopteris]]</div><div class="higher-taxon"><small>species</small>[[Dryopteris cristata]]</div></div>
|volume=Volume 2
|mention_page=
|treatment_page=
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Leaves </b>dimorphic, 35–70 × 8–12 cm; fertile leaves dying back in winter; sterile leaves several, small, green through winter, forming "rosette." Petiole 1/4–1/3 length of leaf, scaly at least at base; scales scattered, tan. <b>Blade</b> green, narrowly lanceolate or with parallel sides, pinnate-pinnatifid, not glandular. <b>Pinnae</b> of fertile leaves twisted out of plane of blade and perpendicular to it, deltate; basal pinnae deltate, somewhat reduced, basal pinnules longer than adjacent pinnules, basal basiscopic pinnule and basal acroscopic pinnule equal; pinnule margins distantly serrate, with spiny teeth. <b>Sori</b> midway between midvein and margin of segments. <b>Indusia</b> lacking glands. <b>2n</b> = 164.</span><!--

-->{{Treatment/Body
|habitat=Swamps, swampy woods, or open shrubby wetlands
|elevation=0–1200 m
|distribution=Alta.;B.C.;Man.;N.B.;Nfld.;N.S.;Ont.;P.E.I.;Que.;Sask.;Ala.;Conn.;Del.;Ill.;Ind.;Iowa;Maine;Md.;Mass.;Mich.;Minn.;Mont.;Nebr.;N.H.;N.J.;N.Y.;N.C.;N.Dak.;Ohio;Pa.;R.I.;Tenn.;Vt.;Va.;W.Va.;Wis.;Europe.
|discussion=<p><i>Dryopteris cristata</i> is believed to be an allotetraploid derived from <i>D. ludoviciana</i> and an unknown diploid called " D. semicristata " by W. H. Wagner Jr. (1971). This ancestral taxon could have been either North American or Eurasian and may have become extinct during the last glaciation (T. J. Carlson and W. H. Wagner Jr. 1982). <i>Dryopteris cristata</i> hybridizes with five species; these hybrids can be identified by the narrow blades and deltate proximal pinnae.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Dryopteris cristata
|author=
|authority=(Linnaeus) A. Gray
|rank=species
|parent rank=genus
|synonyms=
|basionyms=Polypodium cristatum
|family=Dryopteridaceae
|habitat=Swamps, swampy woods, or open shrubby wetlands
|elevation=0–1200 m
|distribution=Alta.;B.C.;Man.;N.B.;Nfld.;N.S.;Ont.;P.E.I.;Que.;Sask.;Ala.;Conn.;Del.;Ill.;Ind.;Iowa;Maine;Md.;Mass.;Mich.;Minn.;Mont.;Nebr.;N.H.;N.J.;N.Y.;N.C.;N.Dak.;Ohio;Pa.;R.I.;Tenn.;Vt.;Va.;W.Va.;Wis.;Europe.
|reference=None
|publication title=Manual
|publication year=1848
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V2/V2_490.xml
|genus=Dryopteris
|species=Dryopteris cristata
}}<!--

-->[[Category:Treatment]][[Category:Dryopteris]]