View source for Cyperus tetragonus

{{Treatment/ID
|accepted_name=Cyperus tetragonus
|accepted_authority=Elliott
|publications={{Treatment/Publication
|title=Sketch Bot. S. Carolina
|place=1: 71. 1821
|year=1821
}}
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Cyperus pringlei
|authority=Britton
|rank=species
}} {{Treatment/ID/Synonym
|name=Cyperus tetragonus var. pringlei
|authority=(Britton) Kükenthal
|rank=variety
}} {{Treatment/ID/Synonym
|name=Mariscus tetragonus
|authority=
|rank=species
}}
|hierarchy=Cyperaceae;Cyperus;Cyperus subg. Cyperus;Cyperus tetragonus
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Cyperaceae]]</div><div class="higher-taxon"><small>genus</small>[[Cyperus]]</div><div class="higher-taxon"><small>subgenus</small>[[Cyperus subg. Cyperus]]</div><div class="higher-taxon"><small>species</small>[[Cyperus tetragonus]]</div></div>
|volume=Volume 23
|mention_page=page 149
|treatment_page=page 189
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Herbs,</b> perennial, cespitose, rhizomatous. <b>Culms</b> trigonous, (20–) 30–80 cm × 1–2.5 mm, glabrous or occasionally with scattered prickles on distal angles. <b>Leaves</b> 9–11, flat to slightly V-shaped, 25–80 cm × 3.5–10 mm. <b>Inflorescences</b>: spikes (1–)3–6, loosely cylindric or oblong with parallel sides, 1.5–4 cm × 10–17 mm; rays 6–12, 2–25 cm, glabrous or rarely scabridulous proximal to spikes; bracts 6–11, ascending at 45°, flat, (1–)10–20(–26) cm × 1–10 mm; rachilla deciduous, wings persistent, 0.4–0.5 mm wide. <b>Spikelets</b> 10–60, narrowly ellipsoid, quadrangular, 5–8 × 1.5–2 mm; floral scales persistent, (2–)3–7, appressed, clear at maturity, laterally reddish to purplish brown, medially greenish, often erose at maturity, laterally 3–5-ribbed, medially 3-ribbed, ovate-elliptic, 2.5–3.2 × 1.8–2.1 mm, apex obtuse. <b>Flowers</b>: anthers 0.8–1 mm; styles 0.3–0.5 mm; stigmas 2–2.5 mm. <b>Achenes</b> brown to reddish brown, sessile, oblong-ovoid to broadly ellipsoid, slightly dorsiventrally flattened, 1.8–2 × 0.7–0.8 mm, apex obtuse, apiculate, surfaces papillose to puncticulate.</span><!--

-->{{Treatment/Body
|phenology=Fruiting summer–fall (Jun–Nov).
|habitat=Open woods, thickets, barrier islands
|elevation=0–1000 m
|distribution=Ala.;Ariz.;Fla.;Ga.;Miss.;N.Mex.;N.C.
|discussion=<p>The status of <i>Cyperus</i> pringlei from the southwestern United States requires further study.</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Cyperus tetragonus
|authority=Elliott
|rank=species
|parent rank=subgenus
|synonyms=Cyperus pringlei;Cyperus tetragonus var. pringlei;Mariscus tetragonus
|basionyms=
|family=Cyperaceae
|phenology=Fruiting summer–fall (Jun–Nov).
|habitat=Open woods, thickets, barrier islands
|elevation=0–1000 m
|distribution=Ala.;Ariz.;Fla.;Ga.;Miss.;N.Mex.;N.C.
|reference=None
|publication title=Sketch Bot. S. Carolina
|publication year=1821
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V23/V23_328.xml
|genus=Cyperus
|subgenus=Cyperus subg. Cyperus
|species=Cyperus tetragonus
}}<!--

-->[[Category:Treatment]][[Category:Cyperus subg. Cyperus]]