View source for Cyperus strigosus

{{Treatment/ID
|accepted_name=Cyperus strigosus
|accepted_authority=Linnaeus
|publications={{Treatment/Publication
|title=Sp. Pl.
|place=1: 47. 1753
|year=1753
}}
|common_names=False nutsedge
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Cyperus hansenii
|authority=Britton
}} {{Treatment/ID/Synonym
|name=Cyperus stenolepis
|authority=Torrey
}} {{Treatment/ID/Synonym
|name=Cyperus strigosus var. hansenii
|authority=(Britton) Kükenthal
}} {{Treatment/ID/Synonym
|name=Cyperus strigosus var. stenolepis
|authority=(Torrey) Kükenthal
}} {{Treatment/ID/Synonym
|name=Mariscus stenolepis
|authority=unknown
}} {{Treatment/ID/Synonym
|name=Mariscus strigosus
|authority=unknown
}}
|hierarchy=Cyperaceae;Cyperus;Cyperus subg. Cyperus;Cyperus strigosus
|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 strigosus]]</div></div>
|volume=Volume 23
|mention_page=page 146, 148, 182, 183, 185
|treatment_page=page 184
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Herbs,</b> perennial (often flowering first year), rhizomatous. <b>Culms</b> basally swollen and cormlike, trigonous, (1–)20–40(–90) cm × 1–6 mm, glabrous or few prickles subapically. <b>Leaves</b> flat, (10–)20–40 cm × 1–4(–8) mm, margins and midribs glabrous or scabridulous. <b>Inflorescences</b>: spikes 1–4, loosely ovoid to oblong-cylindric; (6–)10–28(–50) × 10–40 mm; rays sometimes absent, usually (1–)3–6(–8), 0.5–7(–25) cm; if absent, inflorescence a congested head; 2d order rays sometimes present, 1–4(–9) cm; rachis 8–18(–25) mm; bracts (3–)5–7(–10), ascending at 30–45°, cross ribs sometimes conspicuous, (1–)10–30(–45) cm × (1–)2–4(–12) mm; rachilla ± deciduous, wings 0.4–0.5 mm wide. <b>Spikelets</b> (5–)12–50, linear-lanceoloid, compressed, 5–30 × 0.6–0.9 mm; floral scales ± deciduous, 3–11, appressed, medially green, laterally stramineous to pale brown, 3–4-ribbed laterally, (1–)3-ribbed medially, oblong-obovate, 3.2–4.5(–6) × 1–1.8 mm, apex ± acute, overlapping lower 1/4–1/2 of next scale. <b>Flowers</b>: anthers 0.3–0.5 mm; styles 1–2 mm; stigmas 3–4 mm. <b>Achenes</b> purplish brown, ± stipitate, narrowly oblong, (1.5–)1.8–2.4 × 0.5–0.6 mm, apex apiculate, acute, surfaces puncticulate.</span><!--

-->{{Treatment/Body
|phenology=Fruiting summer.
|habitat=Pond shores, ditches, damp, disturbed soils, sometimes weeds of gardens or croplands
|elevation=0–1500 m
|distribution=Man.;Ont.;Que.;Sask.;Ala.;Ariz.;Ark.;Calif.;Colo.;Conn.;Del.;D.C.;Fla.;Ga.;Idaho;Ill.;Ind.;Iowa;Kans.;Ky.;La.;Maine;Md.;Mass.;Mich.;Minn.;Miss.;Mo.;Nebr.;Nev.;N.H.;N.J.;N.Mex.;N.Y.;N.C.;Ohio;Okla.;Oreg.;Pa.;R.I.;S.C.;S.Dak.;Tenn.;Tex.;Utah;Vt.;Va.;Wash.;W.Va.;Wis.
|discussion=<p><i>Cyperus strigosus</i> is usually among the more common <i>Cyperus</i> species throughout its range. Small individuals flowering the first year may be difficult to distinguish from <i>C. polystachyos</i>, <i>C. odoratus</i>, <i>C. erythrorhizos</i>, and <i>C. esculentus</i>, which may be sympatric. <i>Cyperus strigosus</i> has trigonous achenes and three stigmas, unlike <i>C. polystachyos</i>; <i>C. strigosus</i> has flattened spikelets, unlike the subcylindric ones of <i>C. odoratus</i>; <i>C. strigosus</i> has floral scales usually 3 mm or more, unlike the smaller (1.2–1.5 mm) ones of <i>C. erythrorhizos</i>; <i>C. strigosus</i> has deciduous floral scales and a cormlike stem base with stolons, unlike <i>C. esculentus</i>.</p><!--
--><p><i>Cyperus strigosus</i> appears to be closely related to the neotropical C. camphoratus Liebmann; both species have deciduous floral scales and deciduous spikelets (G. C. Tucker 1994). Plants segregated as C. stenolepis cannot be distinguished consistently from <i>C. strigosus</i> on any single charcter, rather they appear to be merely large individuals of <i>C. strigosus</i> with long floral scales and frequently septate inflorescence bracts (M. L. Horvat 1941).</p>
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-->{{#Taxon:
name=Cyperus strigosus
|author=
|authority=Linnaeus
|rank=species
|parent rank=subgenus
|synonyms=Cyperus hansenii;Cyperus stenolepis;Cyperus strigosus var. hansenii;Cyperus strigosus var. stenolepis;Mariscus stenolepis;Mariscus strigosus
|basionyms=
|family=Cyperaceae
|phenology=Fruiting summer.
|habitat=Pond shores, ditches, damp, disturbed soils, sometimes weeds of gardens or croplands
|elevation=0–1500 m
|distribution=Man.;Ont.;Que.;Sask.;Ala.;Ariz.;Ark.;Calif.;Colo.;Conn.;Del.;D.C.;Fla.;Ga.;Idaho;Ill.;Ind.;Iowa;Kans.;Ky.;La.;Maine;Md.;Mass.;Mich.;Minn.;Miss.;Mo.;Nebr.;Nev.;N.H.;N.J.;N.Mex.;N.Y.;N.C.;Ohio;Okla.;Oreg.;Pa.;R.I.;S.C.;S.Dak.;Tenn.;Tex.;Utah;Vt.;Va.;Wash.;W.Va.;Wis.
|reference=None
|publication title=Sp. Pl.
|publication year=1753
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V23/V23_316.xml
|genus=Cyperus
|subgenus=Cyperus subg. Cyperus
|species=Cyperus strigosus
}}<!--

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