Schoenoplectus americanus (Persoon) Volkart ex Schinz & R. Keller (Q3421)
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Schoenoplectus americanus is a taxon with the rank species within the section Schoenoplectus sect. Schoenoplectus
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Schoenoplectus americanus (Persoon) Volkart ex Schinz & R. Keller
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Schoenoplectus americanus is a taxon with the rank species within the section Schoenoplectus sect. Schoenoplectus
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Statements
taxon/id/Schoenoplectus americanus (Persoon) Volk ex Schinz & R. Keller
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Schoenoplectus americanus (Persoon) Volk ex Schinz & R. Keller
Schoenoplectus americanus
(Persoon) Volk ex Schinz & R. Keller
FNA Editorial Committee. 2002. Flora of North America north of Mexico. Volume 23: Cyperaceae. Oxford University Press, New York.
accepted
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CA-BC
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Klinkenberg, B. (ed.). 2010+. E-Flora BC: Electronic Atlas of the Plants of British Columbia. Lab. for Advanced Spatial Analysis, Department of Geography, University of British Columbia, Vancouver, B.C. http://www.eflora.bc.ca http://www.eflora.bc.ca/
CA-QC
1 reference
FNA Editorial Committee. 2002. Flora of North America north of Mexico. Volume 23: Cyperaceae. Oxford University Press, New York. http://www.efloras.org/volume_page.aspx?volume_id=1023&flora_id=1
CA-NB
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FNA Editorial Committee. 2002. Flora of North America north of Mexico. Volume 23: Cyperaceae. Oxford University Press, New York. http://www.efloras.org/volume_page.aspx?volume_id=1023&flora_id=1
CA-PE
1 reference
FNA Editorial Committee. 2002. Flora of North America north of Mexico. Volume 23: Cyperaceae. Oxford University Press, New York. http://www.efloras.org/volume_page.aspx?volume_id=1023&flora_id=1
CA-NS
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Zinck, M. 1998. Roland's Flora of Nova Scotia. Nimber Publishing & Nova Scotia Museum. Halifax, N. S. 2 vols. 1297 pp.
CA-BC
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CA-NS
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US-AL
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US-AZ
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US-CA
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US-CT
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US-DE
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US-FL
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US-GA
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US-ID
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US-KS
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US-LA
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US-ME
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US-MD
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US-MA
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US-MI
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US-MS
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US-MO
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US-NV
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US-NH
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US-NJ
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US-NM
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US-NY
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US-NC
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US-OK
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US-OR
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US-RI
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US-SC
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US-TX
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US-UT
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US-VT
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US-VA
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US-WA
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US-WY
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Rhizomes 2–5 mm diam.
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Culms sharply trigonous, sides deeply concave throughout to rarely nearly flat, 0.4–2.5 m × 3–10 mm.
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Leaves ca. 3, basal, less than 1/2 culm length;
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blades 1–3, V-shaped near base, otherwise laterally flattened-trigonous in cross-section;
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distal blade 0.2–1.5 times as long as sheath, 25–200 × 2–8 mm.
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Inflorescences capitate or very rarely with 1 branch to 5 mm;
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proximal bract usually erect, resembling leaf-blade, 1–6 cm.
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Spikelets 2–20, 5–15 × 3–5 mm;
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scales bright orange to red or purple-brown to straw-colored, often partly translucent, usually clearly lineolate-spotted, broadly ovate, 2.7–4 × 2–3 mm, smooth or awn sparsely spinulose, margins deciduously ciliolate, flanks of proximal scale often with several ribs, apex rounded to acute, notch 0.1–0.4 mm deep, awn not contorted, 0.2–0.6 mm.
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anthers 1.5–3 mm;
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styles 2-fid or 2-fid and 3-fid.
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Achenes brown when ripe, thickly planoconvex or unequally biconvex or compressed obtusely trigonous, obovoid, 1.8–2.8 × 1.3–2 mm;
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beak 0.1–0.3 mm. 2n = 78.
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flattened-trigonous
otherwise laterally
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0.2-1.5 times as long as sheath
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bright orange
red or purple-brown
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