View source for Pteridium aquilinum var. latiusculum

{{Treatment/ID
|accepted_name=Pteridium aquilinum var. latiusculum
|accepted_authority=(Desvaux) L. Underwood ex A. Heller
|publications={{Treatment/Publication
|title=Cat. N. Amer. Pl. ed. 3
|place=17. 1909
|year=1909
}}
|common_names=Eastern bracken
|basionyms={{Treatment/ID/Synonym
|name=Pteris latiuscula
|authority=(Desvaux) Hieronymus ex Fries
}}
|synonyms={{Treatment/ID/Synonym
|name=Pteridium latiusculum
|authority=unknown
}}
|hierarchy=Dennstaedtiaceae;Pteridium;Pteridium aquilinum;Pteridium aquilinum var. latiusculum
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Dennstaedtiaceae]]</div><div class="higher-taxon"><small>genus</small>[[Pteridium]]</div><div class="higher-taxon"><small>species</small>[[Pteridium aquilinum]]</div><div class="higher-taxon"><small>variety</small>[[Pteridium aquilinum var. latiusculum]]</div></div>
|volume=Volume 2
|mention_page=
|treatment_page=
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Petiole </b>15–100 cm. <b>Blade</b> broadly triangular to sometimes ovate, 3-pinnate or 3-pinnate-pinnatifid at base, 20–80 × 25–50 cm; blade margins and abaxial surface shaggy, rachises and costae glabrous or sparsely pilose abaxially. <b>Pinnae</b> (proximal) broadly triangular, distal pinnae narrowly triangular or oblong; terminal segment of each pinna ca. 2–4 times longer than wide, longer ultimate segments less than their width apart, ca. 3–6 mm wide. <b>Pinnules</b> at 45°–60° angle to costa; fertile ultimate segments adnate or equally decurrent and surcurrent. <b>Outer</b> indusia entire or somewhat erose, glabrous. <b>2n</b> = 104.</span><!--

-->{{Treatment/Body
|habitat=In barrens, pastures, open woodlands in moderately to strong acid soil, abundant, forming large colonies
|elevation=0–1500 m
|distribution=St. Pierre and Miquelon;Alta.;B.C.;Man.;N.B.;Nfld.;N.S.;P.E.I.;Ont.;Que.;Ala.;Ark.;Conn.;Del.;D.C.;Fla.;Ga.;Ill.;Ind.;Iowa;Ky.;La.;Maine;Md.;Mass.;Mich.;Minn.;Miss.;Mo.;N.H.;N.J.;N.Y.;N.C.;N.Dak.;Ohio;Pa.;R.I.;S.C.;S.Dak.;Tenn.;Vt.;Va.;W.Va.;Wis.;Mexico in Nuevo León;Europe;Asia.
|discussion=<p>Colonies are more frequent in the northern part of the range. Fertile colonies, however, are more frequent in the southern and eastern portion of the range. Outliers in British Columbia and Alberta, which we have not seen, are documented in W. J. Cody and D. M. Britton (1989).</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Pteridium aquilinum var. latiusculum
|author=
|authority=(Desvaux) L. Underwood ex A. Heller
|rank=variety
|parent rank=species
|synonyms=Pteridium latiusculum
|basionyms=Pteris latiuscula
|family=Dennstaedtiaceae
|habitat=In barrens, pastures, open woodlands in moderately to strong acid soil, abundant, forming large colonies
|elevation=0–1500 m
|distribution=St. Pierre and Miquelon;Alta.;B.C.;Man.;N.B.;Nfld.;N.S.;P.E.I.;Ont.;Que.;Ala.;Ark.;Conn.;Del.;D.C.;Fla.;Ga.;Ill.;Ind.;Iowa;Ky.;La.;Maine;Md.;Mass.;Mich.;Minn.;Miss.;Mo.;N.H.;N.J.;N.Y.;N.C.;N.Dak.;Ohio;Pa.;R.I.;S.C.;S.Dak.;Tenn.;Vt.;Va.;W.Va.;Wis.;Mexico in Nuevo León;Europe;Asia.
|reference=None
|publication title=Cat. N. Amer. Pl. ed. 3
|publication year=1909
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/9216fc802291cd3df363fd52122300479582ede7/coarse_grained_fna_xml/V2/V2_371.xml
|genus=Pteridium
|species=Pteridium aquilinum
|variety=Pteridium aquilinum var. latiusculum
}}<!--

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