View source for Cyperus sanguinolentus

{{Treatment/ID
|accepted_name=Cyperus sanguinolentus
|accepted_authority=Vahl
|publications={{Treatment/Publication
|title=Enum. Pl.
|place=2: 351. 1805
|year=1805
}}
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Cyperus louisianensis
|authority=Thieret
}} {{Treatment/ID/Synonym
|name=Pycreus sanguinolentus
|authority=(Vahl) Nees
}}
|hierarchy=Cyperaceae;Cyperus;Cyperus subg. Pycreus;Cyperus sanguinolentus
|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. Pycreus]]</div><div class="higher-taxon"><small>species</small>[[Cyperus sanguinolentus]]</div></div>
|volume=Volume 23
|mention_page=page 142, 162
|treatment_page=page 161
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Herbs,</b> perennial; rhizomes ± horizontal, to 12 cm × 0.8–1.2 mm. <b>Culms</b> ± terete to roundly trigonous, 3–25(–60) cm × 0.3–2 mm, glabrous. <b>Leaves</b> 1–3, V-shaped, 1–8(–15) cm × 1–2 mm. <b>Inflorescences</b>: spike 1, loosely ovoid, 7–14 × 8–20 mm; rays (0–)1–4, to 2(–3) cm; bracts 2–4, horizontal to ascending at 30(–45)°, V-shaped to flat, 1–8(–18) cm × 0.5–1.5(–2) mm. <b>Spikelets</b> 3–5(–14), oblong to linear-lanceoloid, 8–18 × 2–2.6(–3) mm; floral scales (6–)10–26(–32), laterally clear to light brown, sometimes with purplish margins, medially light brown, 2-keeled, laterally ribless, medially 2–3-ribbed, oblong to ovate, 1.9–2.2(–2.7) × 1.8–2.3 mm, apex obtuse. <b>Flowers</b>: stamens 3; anthers ellipsoid, 0.3–0.6 mm, connective not prolonged; styles 0.6–1 mm; stigmas 1–1.5 mm. <b>Achenes</b> brown, ± stipitate, obovoid to ovoid, 1–1.4 × 0.6–0.8 mm, apex truncate, apiculate, surfaces minutely punctate.</span><!--

-->{{Treatment/Body
|phenology=Fruiting late summer–fall.
|habitat=Emergent shorelines, ditches
|elevation=20 m
|distribution=Ala.;Ga.;La.;Miss.;Asia;Africa.
|discussion=<p><i>Cyperus sanguinolentus</i> is the only rhizomatous, distigmatic <i>Cyperus</i> in the eastern United States. An early collection from Louisiana was described as C. louisianensis, supposedly endemic. Recent field work and morphometric studies convincingly showed it to be an introduction of the Asian <i>C. sanguinolentus</i>) (J. R. Carter and C. T. Bryson 2001.</p>
|tables=
|references={{Treatment/Reference
|id=carter2001a
|text=Carter, J. R. and C. T. Bryson. 2001. The exotic weed Cyperus sanguinolentus (Cyperaceae) in the southeastern United States: Its taxonomny, ecology, and relationship with Cyperus. Sida 19: 325–343.
}}
}}<!--

--><!--

-->{{#Taxon:
name=Cyperus sanguinolentus
|author=
|authority=Vahl
|rank=species
|parent rank=subgenus
|synonyms=Cyperus louisianensis;Pycreus sanguinolentus
|basionyms=
|family=Cyperaceae
|phenology=Fruiting late summer–fall.
|habitat=Emergent shorelines, ditches
|elevation=20 m
|distribution=Ala.;Ga.;La.;Miss.;Asia;Africa.
|introduced=true
|reference=carter2001a
|publication title=Enum. Pl.
|publication year=1805
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V23/V23_257.xml
|genus=Cyperus
|subgenus=Cyperus subg. Pycreus
|species=Cyperus sanguinolentus
}}<!--

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