View source for Carex retrorsa

{{Treatment/ID
|accepted_name=Carex retrorsa
|accepted_authority=Schweinitz
|publications={{Treatment/Publication
|title=Ann. Lyceum Nat. Hist. New York
|place=1: 71. 1824
|year=1824
}}
|common_names=Carex réfléchi
|basionyms=
|synonyms=
|hierarchy=Cyperaceae;Carex;Carex sect. Vesicariae;Carex retrorsa
|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. Vesicariae]]</div><div class="higher-taxon"><small>species</small>[[Carex retrorsa]]</div></div>
|volume=Volume 23
|mention_page=page 503, 505, 513
|treatment_page=page 508
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>cespitose; rhizomes very short or inconspicuous. <b>Culms</b> trigonous in cross section, 10–105 cm, smooth distally. <b>Leaves</b>: basal sheaths dark reddish brown; ligules longer than wide; blades mid to dark green, flat to W-shaped, widest leaves 3–10 mm wide, glabrous. <b>Inflorescences</b> 3–20(–35) cm; proximal bract 19–70(–100) cm, (2.5–)3–9 times longer than inflorescence; proximal (2–)3–6 spikes pistillate, ascending to spreading, at least the distal erect, ca. 20–150-flowered, cylindric; terminal 1(–3) spikes staminate, slightly if at all elevated beyond summit of crowded pistillate spikes. <b>Pistillate</b> scales narrowly ovate, 2.4–4.5 × 1.1–1.8 mm, shorter than perigynia, margins entire, apex acute to acuminate, awnless. <b>Perigynia</b> mostly reflexed at maturity, often green or straw colored, strongly 6–13-veined, veins running into beak, ovate, 6–10 × (1.6–)2.1–3.4 mm, apex abruptly tapered; beak 2.1–4.5 mm, bidentulate, smooth, teeth straight, 0.3–1.1 mm. <b>Stigmas</b> 3. <b>Achenes</b> pale brown, symmetric, not indented, trigonous, smooth.</span><!--

-->{{Treatment/Body
|phenology=Fruiting Jun–Aug.
|habitat=Swamps, wet thickets, often along streams, marshes, sedge meadows, shores of streams, ponds, and lakes
|elevation=0–1900 m
|distribution=B.C.;Man.;N.B.;Ont.;Que.;Sask.;Conn.;Idaho;Ill.;Ind.;Iowa;Maine;Mass.;Mich.;Minn.;Mont.;N.Y.;Oreg.;Pa.;Utah;Vt.;Wash.;Wis.;Wyo.
|discussion=<p>Very rarely, specimens appear to be intermediate between Carex retrorsa and C. lupulina or C. lupuliformis; they are likely hybrids.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Carex retrorsa
|author=
|authority=Schweinitz
|rank=species
|parent rank=section
|synonyms=
|basionyms=
|family=Cyperaceae
|phenology=Fruiting Jun–Aug.
|habitat=Swamps, wet thickets, often along streams, marshes, sedge meadows, shores of streams, ponds, and lakes
|elevation=0–1900 m
|distribution=B.C.;Man.;N.B.;Ont.;Que.;Sask.;Conn.;Idaho;Ill.;Ind.;Iowa;Maine;Mass.;Mich.;Minn.;Mont.;N.Y.;Oreg.;Pa.;Utah;Vt.;Wash.;Wis.;Wyo.
|reference=None
|publication title=Ann. Lyceum Nat. Hist. New York
|publication year=1824
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/9216fc802291cd3df363fd52122300479582ede7/coarse_grained_fna_xml/V23/V23_945.xml
|genus=Carex
|section=Carex sect. Vesicariae
|species=Carex retrorsa
}}<!--

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