View source for Cyperus odoratus

{{Treatment/ID
|accepted_name=Cyperus odoratus
|accepted_authority=Linnaeus
|publications={{Treatment/Publication
|title=Sp. Pl.
|place=1: 46. 1753
|year=1753
}}
|common_names=Rusty flatsedge
|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=
|synonyms={{Treatment/ID/Synonym
|name=Cyperus acicularis
|authority=(Nees) Steudel
|rank=species
}} {{Treatment/ID/Synonym
|name=Cyperus californicus
|authority=S. Watson
|rank=species
}} {{Treatment/ID/Synonym
|name=Cyperus eggersii
|authority=Boeckeler
|rank=species
}} {{Treatment/ID/Synonym
|name=Cyperus engelmannii
|authority=Steudel
|rank=species
}} {{Treatment/ID/Synonym
|name=Cyperus ferax
|authority=Richard
|rank=species
}} {{Treatment/ID/Synonym
|name=Cyperus ferax subsp. engelmannii
|authority=(Steudel) Kükenthal
|rank=subspecies
}} {{Treatment/ID/Synonym
|name=Cyperus ferax subsp. speciosus
|authority=(Vahl) Kükenthal
|rank=subspecies
}} {{Treatment/ID/Synonym
|name=Cyperus ferruginescens
|authority=(Kunth) M. C. Johnston
|rank=species
}} {{Treatment/ID/Synonym
|name=Cyperus haenkei
|authority=Liebmann
|rank=species
}} {{Treatment/ID/Synonym
|name=Cyperus huarmensis
|authority=Schultes
|rank=species
}} {{Treatment/ID/Synonym
|name=Cyperus macrocephalus
|authority=Britton
|rank=species
}} {{Treatment/ID/Synonym
|name=Cyperus michauxianus
|authority=Vahl
|rank=species
}} {{Treatment/ID/Synonym
|name=Cyperus odoratus var. engelmannii
|authority=(Steudel) J. Rich. Carter, S. D. Jones & Wipff
|rank=variety
}} {{Treatment/ID/Synonym
|name=Cyperus oxycarioides
|authority=Schrader ex Nees
|rank=species
}} {{Treatment/ID/Synonym
|name=Cyperus speciosus
|authority=(Linnaeus) Schrader ex Nees
|rank=species
}} {{Treatment/ID/Synonym
|name=Cyperus squarrosus var. parvus
|authority=Britton
|rank=variety
}} {{Treatment/ID/Synonym
|name=Diclidium aciculare
|authority=Kunth
|rank=species
}} {{Treatment/ID/Synonym
|name=Diclidium odoratum
|authority=(Boeckeler) C. B. Clarke
|rank=species
}} {{Treatment/ID/Synonym
|name=Mariscus ferax
|authority=(Richard) Urban
|rank=species
}} {{Treatment/ID/Synonym
|name=Mariscus huarmensis
|authority=(Liebmann) T. Koyama
|rank=species
}} {{Treatment/ID/Synonym
|name=Torulinium eggersii
|authority=(Schultes) C. B. Clarke
|rank=species
}} {{Treatment/ID/Synonym
|name=Torulinium ferax
|authority=(Linnaeus) S. S. Hooper
|rank=species
}} {{Treatment/ID/Synonym
|name=Torulinium macrocephalum
|authority=
|rank=species
}} {{Treatment/ID/Synonym
|name=Torulinium michauxianum
|authority=
|rank=species
}} {{Treatment/ID/Synonym
|name=Torulinium odoratum
|authority=
|rank=species
}}
|hierarchy=Cyperaceae;Cyperus;Cyperus subg. Diclidium;Cyperus odoratus
|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. Diclidium]]</div><div class="higher-taxon"><small>species</small>[[Cyperus odoratus]]</div></div>
|volume=Volume 23
|mention_page=page 145, 146, 184, 188
|treatment_page=page 191
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Herbs,</b> annual (or short-lived perennial). <b>Culms</b> trigonous, (4–)10–50(–130) cm × (0.5–)1–4 mm. <b>Leaves</b> flanged V- or inversely W-shaped, 5–30(–60) cm × 4–12 mm. <b>Inflorescences</b>: spikes 1–5(–12), loosely to densely cylindric, ovoid, or ± pyramidal, 10–20(–40) × (8–)10–30(–35) mm; rays (0–2)6–9(–12), 2–8(–13) cm; if rays absent, infloresence a single dense, capitate cluster of closely imbricate spikes; bracts (4–)5–8(–10), horizontal to ascending at 30–60°, (3–)10–25(–55) cm × 1–14 mm; rachilla hyaline or thickened bronze, carmine, or yellowish, wings clasping achene. <b>Spikelets</b> (10–)20–60(–100), linear-oblong to narrowly linear, cylindric to slightly flattened (when scale tips spreading), (5–)8–15(–38) × 0.8–1.3(–1.9) mm; floral scales (4–)8–12–(30), medially green, laterally reddish to stramineous to shiny brown or beige, medially 2–5-ribbed, laterally 1–3-ribbed, ovate to elliptic, (2–)2.2–2.8(–3.2) × (1.2–)1.4–1.6(–1.8) mm, apex entire or emarginate with mucro to 0.3 mm. <b>Flowers</b>: anthers (0.2–)0.3–0.4(–0.7) mm; styles 0.4–0.7(–1) mm; stigmas (1–)1.5–3 mm. <b>Achenes</b> brown, reddish brown, or black, stipitate, narrowly ellipsoid to oblong (rarely obovoid-oblong), (1–)1.2–1.5(–1.9) × 0.5–0.6(–0.75) mm, stipe 0.1–0.2 mm, apex acute to barely obtuse, surfaces finely papillose.</span><!--

-->{{Treatment/Body
|phenology=Fruiting summer–early fall.
|habitat=Emergent shorelines, disturbed, muddy places, fresh or slightly brackish marshes
|elevation=0–1500 m
|distribution=Ont.;Que.;Ala.;Ariz.;Ark.;Calif.;Colo.;Conn.;Del.;D.C.;Fla.;Ga.;Ill.;Ind.;Iowa;Kans.;Ky.;La.;Maine;Md.;Mass.;Mich.;Minn.;Miss.;Mo.;Nebr.;N.H.;N.J.;N.Mex.;N.Y.;N.C.;Ohio;Okla.;Oreg.;Pa.;R.I.;S.C.;S.Dak.;Tenn.;Tex.;Vt.;Va.;Wash.;W.Va.;Wis.;Central America;South America;Asia;Africa;Pacific Islands (Hawaii);Australia.
|discussion=<p>As circumscribed here, <i>Cyperus odoratus</i> is easily identified by its cylindric to subcylindric spikelets in which the corky rachilla of the mature spikelet disarticulates at the base of each scale. The mature spikelet breaks into segments each consisting of a scale and an internode of the rachilla clasping the achene with its corky wings. <i>Cyperus odoratus</i> is an exceedingly variable pantropical and warm-temperate species. Numerous segregates have been named, some of which may deserve recognition when the species is studied in detail worldwide.</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Cyperus odoratus
|authority=Linnaeus
|rank=species
|parent rank=subgenus
|synonyms=Cyperus acicularis;Cyperus californicus;Cyperus eggersii;Cyperus engelmannii;Cyperus ferax;Cyperus ferax subsp. engelmannii;Cyperus ferax subsp. speciosus;Cyperus ferruginescens;Cyperus haenkei;Cyperus huarmensis;Cyperus macrocephalus;Cyperus michauxianus;Cyperus odoratus var. engelmannii;Cyperus oxycarioides;Cyperus speciosus;Cyperus squarrosus var. parvus;Diclidium aciculare;Diclidium odoratum;Mariscus ferax;Mariscus huarmensis;Torulinium eggersii;Torulinium ferax;Torulinium macrocephalum;Torulinium michauxianum;Torulinium odoratum
|basionyms=
|family=Cyperaceae
|phenology=Fruiting summer–early fall.
|habitat=Emergent shorelines, disturbed, muddy places, fresh or slightly brackish marshes
|elevation=0–1500 m
|distribution=Ont.;Que.;Ala.;Ariz.;Ark.;Calif.;Colo.;Conn.;Del.;D.C.;Fla.;Ga.;Ill.;Ind.;Iowa;Kans.;Ky.;La.;Maine;Md.;Mass.;Mich.;Minn.;Miss.;Mo.;Nebr.;N.H.;N.J.;N.Mex.;N.Y.;N.C.;Ohio;Okla.;Oreg.;Pa.;R.I.;S.C.;S.Dak.;Tenn.;Tex.;Vt.;Va.;Wash.;W.Va.;Wis.;Central America;South America;Asia;Africa;Pacific Islands (Hawaii);Australia.
|reference=None
|publication title=Sp. Pl.
|publication year=1753
|special status=W2;W1;Illustrated
|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V23/V23_331.xml
|genus=Cyperus
|subgenus=Cyperus subg. Diclidium
|species=Cyperus odoratus
}}<!--

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