View source for Cyperus prolixus

{{Treatment/ID
|accepted_name=Cyperus prolixus
|accepted_authority=Kunth in A. von Humboldt et al.
|publications={{Treatment/Publication
|title=in A. von Humboldt et al., Nov. Gen. Sp.
|place=1: 206. 1816
|year=1816
}}
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Cyperus amplissimus
|authority=Steudel
}}
|hierarchy=Cyperaceae;Cyperus;Cyperus subg. Cyperus;Cyperus prolixus
|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 prolixus]]</div></div>
|volume=Volume 23
|mention_page=page 146, 168
|treatment_page=page 167
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Herbs,</b> perennial; rhizomes 3–20 cm × 1–2 cm, indurate. <b>Culms</b> stoutly trigonous, thickened, 50–300 cm × 5–30 mm, basally indurate, glabrous. <b>Leaves</b> V-shaped, with cross ribs, 40–130 cm × 10–15 mm, margins and keel scabrid. <b>Inflorescences</b>: spikes appressed-ascending, narrowly cylindric, (2–)3–45 mm × (4–)7–10 mm; rays (5–)9–12, 2–22(–30) cm; 2d order rays distinctly flattened, 1–10 cm; 3d order rays flattened, 0.5–3 cm; rachis 2.5–4 cm; bracts (6–)9–10, ascending at 45–75°, V- or inversely W-shaped, (5–)15–90 cm × 0.5–20 mm; rachilla persistent, wings 0.2–0.4 mm wide. <b>Spikelets</b> (4–)10–35, appressed-ascending, compressed, linear, 7–12(–15) × 0.6–1.2 mm; floral scales deciduous, 6–20, marginally clear, laterally brown, medially green, laterally 2–3-ribbed, medially 1-ribbed, oblong-ovate, (3.2–) 3.8–4.3 × 1.2–1.7 mm, apex spreading, acute to obtuse, mucronulate. <b>Flowers</b>: anthers 0.7–0.9 mm, connective apex bright red, oblong, to 0.1 mm; styles 0.8–1.3 mm; stigmas 2–3.3 mm. <b>Achenes</b> brown, sessile, narrowly ellipsoid, 1.8–2.5 × 0.8–1.3 mm, apex ± acute, not apiculate, surfaces puncticulate.</span><!--

-->{{Treatment/Body
|phenology=Fruiting summer.
|habitat=Coastal marshes
|elevation=0–10 m
|distribution=La.;Mexico;Central America;South America.
|discussion=<p><i>Cyperus prolixus</i> produces large plants, similar in habit to <i>C. giganteus</i> and <i>C. papyrus</i> but easily distinguished by flattened rays.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Cyperus prolixus
|author=
|authority=Kunth in A. von Humboldt et al.
|rank=species
|parent rank=subgenus
|synonyms=Cyperus amplissimus
|basionyms=
|family=Cyperaceae
|phenology=Fruiting summer.
|habitat=Coastal marshes
|elevation=0–10 m
|distribution=La.;Mexico;Central America;South America.
|reference=None
|publication title=in A. von Humboldt et al., Nov. Gen. Sp.
|publication year=1816
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V23/V23_271.xml
|genus=Cyperus
|subgenus=Cyperus subg. Cyperus
|species=Cyperus prolixus
}}<!--

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