Scirpus atrovirens Willdenow (Q3371)
Scirpus atrovirens is a taxon with the rank species within the genus Scirpus
| Language | Label | Description | Also known as |
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| English |
Scirpus atrovirens Willdenow
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Scirpus atrovirens is a taxon with the rank species within the genus Scirpus
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Statements
taxon/id/Scirpus atrovirens Willdenow
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Scirpus atrovirens Willdenow
Scirpus atrovirens
Willdenow
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-SK
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Harms, V.L. 2003. Checklist of the Vascular Plants of Saskatchewan and the provincially and nationally rare native plants in Saskatchewan. University of Saskatchewan, University Extension Press.
CA-MB
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CA-ON
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Newmaster, S.G. & S. Ragupathy. 2005. Flora Ontario - Integrated Botanical Information System (FOIBIS), Phase I. University of Guelph, Canada. http://www.uoguelph.ca/foibis http://www.uoguelph.ca/foibis/
CA-QC
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Marie-Victorin, Fr. 1995. Flore laurentienne. 3e éd. Mise à jour et annotée par L. Brouillet, S.G. Hay, I. Goulet, M. Blondeau, J. Cayouette et J. Labrecque. Gaétan Morin éditeur. 1093 pp.
CA-PE
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E.C. Smith Herbarium (ACAD), Acadia University, NS. Specimen. http://herbarium.acadiau.ca/
CA-NS
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Newfoundland, CA
present
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Meades, S., S.G. Hay & L. Brouillet. 2000. Annotated Checklist of the Vascular Plants of Newfoundland and Labrador. Published in association with A Digital Flora of Newfoundland and Labrador Vascular Plants. http://www.digitalnaturalhistory.com/meades.htm (consulted 2009-09-02) http://www.digitalnaturalhistory.com/meades.htm
FR-PM
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CA-MB
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CA-NL
Nfld. and Labr. (Nfld.)
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CA-ON
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CA-QC
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US-AL
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US-AZ
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US-CT
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US-DE
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US-DC
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US-GA
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US-IL
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US-IN
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US-IA
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US-KS
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US-KY
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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-MN
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US-MO
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US-MT
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US-NE
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US-NH
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US-NJ
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US-NY
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US-ND
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US-OH
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US-OK
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US-PA
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US-RI
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US-SD
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US-TN
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US-TX
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US-VT
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US-VA
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US-WV
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US-WI
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rhizomes short, tough, fibrous.
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Culms: fertile ones upright or nearly so;
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Leaves 6–11 per culm;
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sheaths of proximal leaves light-brown;
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proximal sheaths and blades with septa many, ± conspicuous;
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blades 20–54 cm × 7–17 mm.
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Inflorescences terminal, rarely also with 1 lateral inflorescence from distal leaf-axil;
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rays ascending or divergent (commonly both in the same inflorescence), proximal branches smooth, distal branches scabrellous to scabrous, rays often bearing axillary bulblets;
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bases of involucral-bracts green, margins usually speckled with redbrown, rarely solid black, not glutinous.
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Spikelets in dense clusters of 4–110 (largest cluster with 17–25+), spikelets sessile, ovoid to narrowly ovoid, 2–5 (–8) × 1–2.5 mm;
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scales dark-brown with pale midribs, elliptic or broadly elliptic (rarely almost circular), 1.2–2.1 mm, apex mucronate, mucro 0.1–0.3 (–0.4) mm.
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Flowers: perianth bristles persistent, (5–) 6, rather stout to somewhat slender, straight or curved, shorter than to slightly exceeding achene, with retrorse, thin-walled, round-tipped barbs in distal 0.3–0.6, enclosed within scales;
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Achenes light-brown, elliptic or obovate in outline, plumply trigonous or planoconvex, (0.8–) 1–1.3 × 0.4–0.6 mm. 2n = 50–60.
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