Difference between revisions of "Cyperus squarrosus"
Cent. Pl. II, 6. 1756.
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|name=Chlorocyperus inflexus | |name=Chlorocyperus inflexus | ||
|authority=(Muhlenberg) Palla | |authority=(Muhlenberg) Palla | ||
| − | }}{{Treatment/ID/Synonym | + | }} {{Treatment/ID/Synonym |
|name=Cyperus aristatus | |name=Cyperus aristatus | ||
|authority=Rottbøll | |authority=Rottbøll | ||
| − | }}{{Treatment/ID/Synonym | + | }} {{Treatment/ID/Synonym |
|name=Cyperus aristatus var. inflexus | |name=Cyperus aristatus var. inflexus | ||
|authority=(Muhlenberg) Kükenthal | |authority=(Muhlenberg) Kükenthal | ||
| − | }}{{Treatment/ID/Synonym | + | }} {{Treatment/ID/Synonym |
|name=Cyperus aristatus var. runyonii | |name=Cyperus aristatus var. runyonii | ||
|authority=O’Neill | |authority=O’Neill | ||
| − | }}{{Treatment/ID/Synonym | + | }} {{Treatment/ID/Synonym |
|name=Cyperus inflexus | |name=Cyperus inflexus | ||
|authority=(Linnaeus) C. B. Clarke | |authority=(Linnaeus) C. B. Clarke | ||
| − | }}{{Treatment/ID/Synonym | + | }} {{Treatment/ID/Synonym |
|name=Dichostylis aristata | |name=Dichostylis aristata | ||
|authority=unknown | |authority=unknown | ||
| − | }}{{Treatment/ID/Synonym | + | }} {{Treatment/ID/Synonym |
|name=Mariscus squarrosus | |name=Mariscus squarrosus | ||
|authority=unknown | |authority=unknown | ||
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|elevation=0–2500 m | |elevation=0–2500 m | ||
|distribution=Alta.;B.C.;Man.;N.B.;Ont.;Que.;Ala.;Ariz.;Ark.;Calif.;Colo.;Conn.;Del.;D.C.;Fla.;Ga.;Idaho;Ill.;Ind.;Iowa;Kans.;Ky.;La.;Maine;Md.;Mass.;Mich.;Minn.;Miss.;Mo.;Mont.;Nebr.;Nev.;N.H.;N.J.;N.Mex.;N.Y.;N.C.;N.Dak.;Ohio;Okla.;Oreg.;Pa.;R.I.;S.C.;S.Dak.;Tenn.;Tex.;Utah.;Vt.;Va.;Wash.;W.Va.;Wis.;Wyo.;Mexico;West Indies;Bermuda;Central America;South America;Eurasia;Africa;Atlantic Islands;Indian Ocean Islands;Pacific Islands;Australia. | |distribution=Alta.;B.C.;Man.;N.B.;Ont.;Que.;Ala.;Ariz.;Ark.;Calif.;Colo.;Conn.;Del.;D.C.;Fla.;Ga.;Idaho;Ill.;Ind.;Iowa;Kans.;Ky.;La.;Maine;Md.;Mass.;Mich.;Minn.;Miss.;Mo.;Mont.;Nebr.;Nev.;N.H.;N.J.;N.Mex.;N.Y.;N.C.;N.Dak.;Ohio;Okla.;Oreg.;Pa.;R.I.;S.C.;S.Dak.;Tenn.;Tex.;Utah.;Vt.;Va.;Wash.;W.Va.;Wis.;Wyo.;Mexico;West Indies;Bermuda;Central America;South America;Eurasia;Africa;Atlantic Islands;Indian Ocean Islands;Pacific Islands;Australia. | ||
| − | |discussion=<p>Cyperus squarrosus can be recognized by its small size and annual habit combined with its oblong-lanceolate floral scales bearing five to eleven conspicuous ribs and excurved awns. Some collections have been misidentified as C. acuminatus, an annual species of subg. Pycnostachys that has ovate-lanceolate, three-ribbed floral scales and digitately clustered spikelets.</p> | + | |discussion=<p><i>Cyperus squarrosus</i> can be recognized by its small size and annual habit combined with its oblong-lanceolate floral scales bearing five to eleven conspicuous ribs and excurved awns. Some collections have been misidentified as <i>C. acuminatus</i>, an annual species of subg. Pycnostachys that has ovate-lanceolate, three-ribbed floral scales and digitately clustered spikelets.</p> |
|tables= | |tables= | ||
|references= | |references= | ||
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|publication year=1756 | |publication year=1756 | ||
|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_265.xml |
|genus=Cyperus | |genus=Cyperus | ||
|subgenus=Cyperus subg. Cyperus | |subgenus=Cyperus subg. Cyperus | ||
Revision as of 16:06, 18 September 2019
Herbs, annual, cespitose, with fibrous roots. Culms 1–20, trigonous, 2–16 cm × 0.5–0.8 mm, glabrous. Leaves 1–3, flat to V-shaped, (1–)5–10(–15) × 0.5–2.5 mm. Inflorescences: spike 1, loosely to densely ovoid to oblong, 6–20(–40) × 9–15(–20) mm; rays absent or 1–3(–6), 4–40 mm; bracts (1–)2–4, longest ± erect, V-shaped, 1–15 cm × 0.5–3 mm; rachilla ± deciduous, wingless. Spikelets (2–)6–20(–40), greenish to reddish brown, somewhat compressed, ovoid-lanceoloid to oblong, 2.5–10(–20) × 1.3–2.2 mm (excluding awns); floral scales deciduous, (4–)10–20(–34), greenish to stramineous or brownish red laterally, greenish medially, (5–)7–9(–11)-ribbed nearly to margins, oblong-lanceolate, (1.2–)1.3–1.8(–2.2) × (0.5–)0.7–0.8(–1) mm, apex cuspidate, excurved awn additional 0.5–1(–1.3) mm. Flowers: stamen 1, filaments 1.5 mm; anthers oblong, 0.2–0.3 mm, connective apex reddish, minute; styles 0.3–0.5 mm; stigmas 0.4–0.7 mm. Achenes light brown to nearly black, stipitate, obovoid (occasionally linear-spatulate or linear oblong, infrequently constricted in middle), 0.7–0.8(–1.1) × (0.2–)0.3–0.4(–0.5) mm, stipe 0.05–0.1 × 0.1 mm, apex truncate, apiculate, surfaces papillose.
Phenology: Fruiting summer.
Habitat: Moist, disturbed soils, gravelly roadsides, flood plains, edges of puddles, muddy places
Elevation: 0–2500 m
Distribution
Alta., B.C., Man., N.B., Ont., Que., Ala., Ariz., Ark., Calif., Colo., Conn., Del., D.C., Fla., Ga., Idaho, Ill., Ind., Iowa, Kans., Ky., La., Maine, Md., Mass., Mich., Minn., Miss., Mo., Mont., Nebr., Nev., N.H., N.J., N.Mex., N.Y., N.C., N.Dak., Ohio, Okla., Oreg., Pa., R.I., S.C., S.Dak., Tenn., Tex., Utah., Vt., Va., Wash., W.Va., Wis., Wyo., Mexico, West Indies, Bermuda, Central America, South America, Eurasia, Africa, Atlantic Islands, Indian Ocean Islands, Pacific Islands, Australia.
Discussion
Cyperus squarrosus can be recognized by its small size and annual habit combined with its oblong-lanceolate floral scales bearing five to eleven conspicuous ribs and excurved awns. Some collections have been misidentified as C. acuminatus, an annual species of subg. Pycnostachys that has ovate-lanceolate, three-ribbed floral scales and digitately clustered spikelets.
Selected References
None.