Carex nigromarginata Schweinitz (Q65)
Carex nigromarginata is a taxon with the rank species within the section Carex sect. Acrocystis
| Language | Label | Description | Also known as |
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| English |
Carex nigromarginata Schweinitz
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Carex nigromarginata is a taxon with the rank species within the section Carex sect. Acrocystis
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Statements
taxon/id/Carex nigromarginata Schweinitz
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Carex nigromarginata Schweinitz
Carex nigromarginata
Schweinitz
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-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-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.
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US-AL
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US-AR
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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-KY
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US-MA
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US-MO
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US-NJ
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US-NY
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US-NC
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US-OH
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US-PA
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US-RI
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US-SC
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10–800 m
10 meter
800 meter
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Plants densely cespitose;
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rhizomes ascending to erect, reddish-brown, 0–10 mm, stout.
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Culms 8–27 cm, scabrous distally;
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bases (remnants of old leaves) strongly fibrous.
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Leaf-blades green, greatly exceeding culms, 1.4–4 mm wide, herbaceous, papillose to scabrous abaxially, papillose to scabrous adaxially.
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Inflorescences with both staminate and pistillate spikes;
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peduncles of staminate spikes 0.3–0.8 mm;
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proximal cauline bracts leaflike, usually shorter than inflorescences.
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Spikes: proximal pistillate spikes 2–3 (basal spikes 0);
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cauline spikes overlapping, proximal 2 separated by less than 7 mm, with 6–15 perigynia;
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staminate spikes 5.3–10 × 1.1–2.3 mm.
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Scales: pistillate scales pale to, usually, dark reddish-brown to purplish brown, with similarly colored or narrow white margins, ovate to lanceolate, 2.9–3.7 × 1.2–2 mm, equaling or exceeding perigynia, apex acute to acuminate or cuspidate;
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staminate scales ovate, 3–4.3 × 1–1.8 mm, apex obtuse to acute or acuminate.
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Anthers 1.4–2.6 mm.
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Perigynia pale green, veinless, ellipsoid, 2.8–3.6 × 1–1.3 mm, longer than wide;
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beak straight, pale green, 0.7–1 mm, weakly ciliate-serrulate, apical teeth 0.1–0.4 mm.
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Achenes brown, ellipsoid, obtusely trigonous in cross-section, 1.4–2 × 0.9–1.2 mm. 2n = 36.
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dark reddish-brown
purplish brown
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