View source for Cyperus retrorsus

{{Treatment/ID
|accepted_name=Cyperus retrorsus
|accepted_authority=Chapman
|publications={{Treatment/Publication
|title=Bot. Gaz.
|place=3: 17. 1878
|year=1878
}}
|special_status={{Treatment/ID/Special_status
|code=W2
|label=
}}{{Treatment/ID/Special_status
|code=W1
|label=
}}{{Treatment/ID/Special_status
|code=F
|label=Illustrated
}}
|basionyms={{Treatment/ID/Basionym
|name=Mariscus cylindricus
|authority=Elliott
|rank=species
|publication_title=Sketch Bot. S. Carolina
|publication_place=1: 74. 1816
}} {{Treatment/ID/Basionym
|name=Cyperus cylindricus
|authority=(Elliott) Britton
|rank=species
|publication_title=
|publication_place=1879
}}
|synonyms={{Treatment/ID/Synonym
|name=Mariscus retrorsus
|authority=(Chapman) C. B. Clarke
|rank=species
}}
|hierarchy=Cyperaceae;Cyperus;Cyperus subg. Cyperus;Cyperus retrorsus
|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 retrorsus]]</div></div>
|volume=Volume 23
|mention_page=page 150, 183, 185
|treatment_page=page 187
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Herbs,</b> perennial, cespitose, shortly rhizomatous. <b>Culms</b> trigonous, 20–50(–85) cm × 1–2(–4) mm, glabrous. <b>Leaves</b> 3–6(–10), 10–40(–55) cm × 1.5–4(–5) mm, V- to inversely W-shaped. <b>Inflorescence</b>: spike 1, densely oblong-ovoid often with small basal branches, 8–16 × 4–12(–16) mm; rays 4–8(–11), 0.5–3.5(–8.5) cm; bracts (3–)4–6(–10), ascending at (30–)45°, flat to broadly V-shaped, (4–)14–30(–55) cm × 1–5 mm, scabridulous along margins only; rachilla deciduous, wings persistent, 0.2–0.3 mm wide. <b>Spikelets</b> 40–120, oblong-lanceoloid, subterete, 2.2–4(–4.5) × 0.8–1.6 mm; distal spikelet spreading or ascending; floral scales persistent, 2–5, appressed, brown to stramineous, or fuscous and lustrous, medially greenish and 1(–3)-ribbed, laterally greenish to yellowish white and 3–4-ribbed, oblong to oblong-lanceolate, 1.8–2.5 × 1–1.5 mm, subcoriacous. <b>Flowers</b>: anthers 0.3–0.5 mm; styles 0.5–0.8 mm; stigmas 0.6–0.9 mm. <b>Achenes</b> brown, oblong-ellipsoid, 1.2–1.7 × 0.5–0.6 mm, base cuneate, apex subacute, surfaces papillose.</span><!--

-->{{Treatment/Body
|phenology=Fruiting summer (Jun–Aug).
|habitat=Open woods and thickets in moist to dry, sandy soils
|elevation=0–1000 m
|distribution=Ala.;Ark.;Del.;D.C.;Fla.;Ga.;La.;Md.;Miss.;Mo.;N.J.;N.Y.;N.C.;Okla.;S.C.;Tenn.;Tex.;Va.;Mexico (Tamaulipas).
|discussion=<p><i>Cyperus retrorsus</i> was reported in Indiana (M. L. Horvat 1941); we have been unable to confirm the report.</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Cyperus retrorsus
|authority=Chapman
|rank=species
|parent rank=subgenus
|synonyms=Mariscus retrorsus
|basionyms=Mariscus cylindricus;Cyperus cylindricus
|family=Cyperaceae
|phenology=Fruiting summer (Jun–Aug).
|habitat=Open woods and thickets in moist to dry, sandy soils
|elevation=0–1000 m
|distribution=Ala.;Ark.;Del.;D.C.;Fla.;Ga.;La.;Md.;Miss.;Mo.;N.J.;N.Y.;N.C.;Okla.;S.C.;Tenn.;Tex.;Va.;Mexico (Tamaulipas).
|reference=None
|publication title=Bot. Gaz.
|publication year=1878
|special status=W2;W1;Illustrated
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-data-curation.git/src/bb6b7e3a7de7d3b7888a1ad48c7fd8f5c722d8d6/coarse_grained_fna_xml/V23/V23_323.xml
|genus=Cyperus
|subgenus=Cyperus subg. Cyperus
|species=Cyperus retrorsus
}}<!--

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