View source for Carex prairea

{{Treatment/ID
|accepted_name=Carex prairea
|accepted_authority=Dewey in Alph. Wood
|publications={{Treatment/Publication
|title=in Alph. Wood, Class-book Bot.,
|place=414. 1845 (as prarisa)
}}, {{Treatment/Publication
|title=ed.
|place=2, 578. 1847
|year=1847
}}
|common_names=Carex des prairies
|special_status={{Treatment/ID/Special_status
|code=F
|label=Illustrated
}}{{Treatment/ID/Special_status
|code=E
|label=Endemic
}}
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Carex diandra var. ramosa
|authority=(Boott) Fernald
|rank=variety
}}
|hierarchy=Cyperaceae;Carex;Carex sect. Heleoglochin;Carex prairea
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Cyperaceae]]</div><div class="higher-taxon"><small>genus</small>[[Carex]]</div><div class="higher-taxon"><small>section</small>[[Carex sect. Heleoglochin]]</div><div class="higher-taxon"><small>species</small>[[Carex prairea]]</div></div>
|volume=Volume 23
|mention_page=page 280, 281
|treatment_page=page 279
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Culms </b>3–6 cm (fl), elongating to 6–100 cm (fr). <b>Leaves</b>: sheaths adaxially strongly copper colored distally, truncate to convex at mouth, prolonged 2–8 mm beyond base of blade; ligules 1.2–5.8(–9.2) mm; foliage leaf blades 6–50 cm × 2–3 mm. <b>Inflorescences</b> bisexual or, sometimes, nearly or wholly unisexual, flexuous and interrupted, proximal 1–5 branches often separated, decompound, 3–8(–9) × (0.4–)0.8–1.8 cm; basal branch with (2–)4–10 spikes; proximal internode 7–26(–33) mm. <b>Pistillate</b> scales light reddish brown, 2.4–3.3 × (1.1–)1.4–2.1 mm, as wide as or wider than perigynia. <b>Perigynia</b> appressed or ascending, straw colored to light or dark brown, strongly 6–9-veined abaxially, with or without median lengthwise groove near base, sometimes membranous flap toward apex, lance-ovate (body ovate to very widely ovate) in outline, plano-convex, (2.1–)2.3–3(–3.3) × (1–)1.1–1.4 mm, dull; beak 0.8–1.4 mm. <b>Achenes</b> broadly or very broadly trullate-ovate in outline, 1.2–1.6 × 0.7–1 mm. <b>2n</b> = 66.</span><!--

-->{{Treatment/Body
|phenology=Fruiting Jun–Jul (Aug in w Canada).
|habitat=Wet meadows, peaty ground, usually in calcareous marshes, prairies, fens, and swales, often on borders of lakes and streams or in open conifer swamps (Larix, Picea, Thuja), also thickets and ditches
|elevation=0–1400 m
|distribution=Alta.;B.C.;Man.;N.B.;N.W.T.;N.S.;Ont.;Que.;Sask.;Yukon;Conn.;Ill.;Ind.;Iowa;Maine;Mass.;Mich.;Minn.;Mont.;Nebr.;N.J.;N.Y.;N.Dak.;Ohio;Pa.;S.Dak.;Vt.;Va.;W.Va.;Wis.
|discussion=<p>The geographic range of <i>Carex prairea</i> is rather fragmented except for a core zone that extends from southern Quebec and New England to Alberta. Oregon, Idaho, Wyoming, and California reports should probably be referred to <i>C. cusickii</i> or some other species, because south of the Canadian border (except for one locality in western Montana), <i>C. prairea</i> is unknown from west of the Great Plains. <i>Carex</i> appropinquata Schumacher, reported from Manitoba by W. J. Hooker ([1829–]1840, as C. paradoxa Willdenow) and from Colorado by L. Kelso (1953, 1953b), must be excluded. Hooker’s citation possibly refers to <i>C. praegracilis</i> W. Boott or less likely to <i>C. prairea</i>, and Kelso’s specimens (in US) are <i>C. praegracilis</i>.</p><!--
--><p><i>Carex prairea</i> and <i>C. diandra</i> are closely related and may not appear to be sharply differentiated. However, they maintain separate identities throughout their overlapping ranges and prefer subtly different habitats. <i>Carex prairea</i> is strictly calcicolous, avoiding saline groundwater and oligotrophic muskegs, whereas <i>C. diandra</i> does not require calcareous conditions and so is more likely to be found, for example, in New England and the Canadian Shield region.</p>
|tables=
|references=
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-->{{#Taxon:
name=Carex prairea
|authority=Dewey in Alph. Wood
|rank=species
|parent rank=section
|synonyms=Carex diandra var. ramosa
|basionyms=
|family=Cyperaceae
|phenology=Fruiting Jun–Jul (Aug in w Canada).
|habitat=Wet meadows, peaty ground, usually in calcareous marshes, prairies, fens, and swales, often on borders of lakes and streams or in open conifer swamps (Larix, Picea, Thuja), also thickets and ditches
|elevation=0–1400 m
|distribution=Alta.;B.C.;Man.;N.B.;N.W.T.;N.S.;Ont.;Que.;Sask.;Yukon;Conn.;Ill.;Ind.;Iowa;Maine;Mass.;Mich.;Minn.;Mont.;Nebr.;N.J.;N.Y.;N.Dak.;Ohio;Pa.;S.Dak.;Vt.;Va.;W.Va.;Wis.
|reference=None
|publication title=in Alph. Wood, Class-book Bot.,;ed.
|publication year=;1847
|special status=Illustrated;Endemic
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-data-curation.git/src/bb6b7e3a7de7d3b7888a1ad48c7fd8f5c722d8d6/coarse_grained_fna_xml/V23/V23_473.xml
|genus=Carex
|section=Carex sect. Heleoglochin
|species=Carex prairea
}}<!--

-->[[Category:Treatment]][[Category:Carex sect. Heleoglochin]]