Difference between revisions of "Cyperus articulatus"
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|place=1: 44. 1753 | |place=1: 44. 1753 | ||
|year=1753 | |year=1753 | ||
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| + | |special_status={{Treatment/ID/Special_status | ||
| + | |code=W1 | ||
| + | |label= | ||
| + | }}{{Treatment/ID/Special_status | ||
| + | |code=F | ||
| + | |label=Illustrated | ||
}} | }} | ||
|basionyms= | |basionyms= | ||
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|name=Cyperus articulatus var. multiflorus | |name=Cyperus articulatus var. multiflorus | ||
|authority=Kükenthal | |authority=Kükenthal | ||
| − | }}{{Treatment/ID/Synonym | + | |rank=variety |
| + | }} {{Treatment/ID/Synonym | ||
|name=Cyperus articulatus var. nodosus | |name=Cyperus articulatus var. nodosus | ||
|authority=(Willdenow) Kükenthal | |authority=(Willdenow) Kükenthal | ||
| − | }}{{Treatment/ID/Synonym | + | |rank=variety |
| + | }} {{Treatment/ID/Synonym | ||
|name=Cyperus corymbosus var. subnodosus | |name=Cyperus corymbosus var. subnodosus | ||
|authority=(Nees & Meyen) Kükenthal | |authority=(Nees & Meyen) Kükenthal | ||
| − | }}{{Treatment/ID/Synonym | + | |rank=variety |
| + | }} {{Treatment/ID/Synonym | ||
|name=Cyperus nodosus | |name=Cyperus nodosus | ||
| − | |authority= | + | |authority= |
| − | }}{{Treatment/ID/Synonym | + | |rank=species |
| + | }} {{Treatment/ID/Synonym | ||
|name=Cyperus nodosus var. subnodosus | |name=Cyperus nodosus var. subnodosus | ||
|authority=(Nees & Meyen) Boeckeler | |authority=(Nees & Meyen) Boeckeler | ||
| − | }}{{Treatment/ID/Synonym | + | |rank=variety |
| + | }} {{Treatment/ID/Synonym | ||
|name=Cyperus subnodosus | |name=Cyperus subnodosus | ||
| − | |authority= | + | |authority= |
| + | |rank=species | ||
}} | }} | ||
|hierarchy=Cyperaceae;Cyperus;Cyperus subg. Cyperus;Cyperus articulatus | |hierarchy=Cyperaceae;Cyperus;Cyperus subg. Cyperus;Cyperus articulatus | ||
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|elevation=0–100 m | |elevation=0–100 m | ||
|distribution=Ala.;Fla.;Ga.;La.;Miss.;S.C.;Tex.;Mexico;Central America;South America;Asia;Africa. | |distribution=Ala.;Fla.;Ga.;La.;Miss.;S.C.;Tex.;Mexico;Central America;South America;Asia;Africa. | ||
| − | |discussion=<p>In habit, Cyperus articulatus is reminscent of larger plants of Juncus or Schoenoplectus and is the only North American Cyperus with such a reedlike appearance.</p> | + | |discussion=<p>In habit, <i>Cyperus articulatus</i> is reminscent of larger plants of <i>Juncus</i> or <i>Schoenoplectus</i> and is the only North American <i>Cyperus</i> with such a reedlike appearance.</p> |
|tables= | |tables= | ||
|references= | |references= | ||
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-->{{#Taxon: | -->{{#Taxon: | ||
name=Cyperus articulatus | name=Cyperus articulatus | ||
| − | |||
|authority=Linnaeus | |authority=Linnaeus | ||
|rank=species | |rank=species | ||
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|publication title=Sp. Pl. | |publication title=Sp. Pl. | ||
|publication year=1753 | |publication year=1753 | ||
| − | |special status= | + | |special status=W1;Illustrated |
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V23/V23_272.xml |
|genus=Cyperus | |genus=Cyperus | ||
|subgenus=Cyperus subg. Cyperus | |subgenus=Cyperus subg. Cyperus | ||
Latest revision as of 21:39, 5 November 2020
Herbs perennial; rhizomes to 200 cm. Culms to 25 cm apart, 1(–3) together, terete (scarcely compressed in drying), occasionally trigonous for apical 1/3, 40–140(–200) cm, 4–12 mm thick at base, (1.2–)1.5–2.5 mm thick at apex (with conspicuous transverse septa ca. 3 cm apart basally, to 3–5 mm apart apically), glabrous or infrequently scabrid on angles apically; sheaths at base of culm, 2–3, (5–)10–25 cm, loose, papery. Leaves usually bladeless, blades when present, cross ribs prominent, especially adaxially, (1–)10–20(–40) cm × 4–6(–9) mm. Inflorescences: spikes 1(–5), broadly ovoid to ± umbellate, 15–45 × 10–30 mm; rays 5–7(–10), 0.3–8(–12) cm; 2d order rays occasionally present, 5–20 mm; bracts 2(–4), erect, longest appearing to be continuation of culm, deltate to lance-linear, 0.2–2(–9) cm × 1.5–4.5 mm; rachilla persistent, wings translucent, whitish, or stramineous, 0.4 mm wide. Spikelets (1–)5–10, linear, compressed, 10–35(–45) × 1.1–2 mm; floral scales deciduous, 15–45, spreading or appressed, laterally light brown, medially green to brown, laterally 1–2-ribbed, medially 3-ribbed, oblong-elliptic to ovate, 2.9–3.7 × 1.1–1.6(–1.8) mm, apex acute. Flowers: anthers 1.7–2.4 mm; styles 1.2–3.6 mm; stigmas 1.7–6 mm. Achenes brown, stipitate, obovoid-ellipsoid, 1.2–1.6 × 0.4–0.6 mm, stipe 0.1 mm, apex markedly apiculate, surfaces puncticulate.
Phenology: Fruiting summer.
Habitat: Marshes, shallow water, ditches
Elevation: 0–100 m
Distribution
Ala., Fla., Ga., La., Miss., S.C., Tex., Mexico, Central America, South America, Asia, Africa.
Discussion
In habit, Cyperus articulatus is reminscent of larger plants of Juncus or Schoenoplectus and is the only North American Cyperus with such a reedlike appearance.
Selected References
None.