Difference between revisions of "Cyperus tetragonus"
Sketch Bot. S. Carolina 1: 71. 1821.
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|name=Cyperus pringlei | |name=Cyperus pringlei | ||
|authority=Britton | |authority=Britton | ||
| − | }}{{Treatment/ID/Synonym | + | }} {{Treatment/ID/Synonym |
|name=Cyperus tetragonus var. pringlei | |name=Cyperus tetragonus var. pringlei | ||
|authority=(Britton) Kükenthal | |authority=(Britton) Kükenthal | ||
| − | }}{{Treatment/ID/Synonym | + | }} {{Treatment/ID/Synonym |
|name=Mariscus tetragonus | |name=Mariscus tetragonus | ||
|authority=unknown | |authority=unknown | ||
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|elevation=0–1000 m | |elevation=0–1000 m | ||
|distribution=Ala.;Ariz.;Fla.;Ga.;Miss.;N.Mex.;N.C. | |distribution=Ala.;Ariz.;Fla.;Ga.;Miss.;N.Mex.;N.C. | ||
| − | |discussion=<p>The status of Cyperus pringlei from the southwestern United States requires further study.</p> | + | |discussion=<p>The status of <i>Cyperus</i> pringlei from the southwestern United States requires further study.</p> |
|tables= | |tables= | ||
|references= | |references= | ||
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|publication year=1821 | |publication year=1821 | ||
|special status= | |special status= | ||
| − | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/ | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V23/V23_328.xml |
|genus=Cyperus | |genus=Cyperus | ||
|subgenus=Cyperus subg. Cyperus | |subgenus=Cyperus subg. Cyperus | ||
Revision as of 17:07, 18 September 2019
Herbs, perennial, cespitose, rhizomatous. Culms trigonous, (20–) 30–80 cm × 1–2.5 mm, glabrous or occasionally with scattered prickles on distal angles. Leaves 9–11, flat to slightly V-shaped, 25–80 cm × 3.5–10 mm. Inflorescences: spikes (1–)3–6, loosely cylindric or oblong with parallel sides, 1.5–4 cm × 10–17 mm; rays 6–12, 2–25 cm, glabrous or rarely scabridulous proximal to spikes; bracts 6–11, ascending at 45°, flat, (1–)10–20(–26) cm × 1–10 mm; rachilla deciduous, wings persistent, 0.4–0.5 mm wide. Spikelets 10–60, narrowly ellipsoid, quadrangular, 5–8 × 1.5–2 mm; floral scales persistent, (2–)3–7, appressed, clear at maturity, laterally reddish to purplish brown, medially greenish, often erose at maturity, laterally 3–5-ribbed, medially 3-ribbed, ovate-elliptic, 2.5–3.2 × 1.8–2.1 mm, apex obtuse. Flowers: anthers 0.8–1 mm; styles 0.3–0.5 mm; stigmas 2–2.5 mm. Achenes brown to reddish brown, sessile, oblong-ovoid to broadly ellipsoid, slightly dorsiventrally flattened, 1.8–2 × 0.7–0.8 mm, apex obtuse, apiculate, surfaces papillose to puncticulate.
Phenology: Fruiting summer–fall (Jun–Nov).
Habitat: Open woods, thickets, barrier islands
Elevation: 0–1000 m
Distribution
Ala., Ariz., Fla., Ga., Miss., N.Mex., N.C.
Discussion
The status of Cyperus pringlei from the southwestern United States requires further study.
Selected References
None.