Carex laxiflora Lamarck in J. Lamarck et al. (Q276)
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Carex laxiflora is a taxon with the rank species within the section Carex sect. Laxiflorae
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| English |
Carex laxiflora Lamarck in J. Lamarck et al.
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Carex laxiflora is a taxon with the rank species within the section Carex sect. Laxiflorae
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Statements
taxon/id/Carex laxiflora Lamarck
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Carex laxiflora Lamarck
Carex laxiflora
Lamarck
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-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-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-NB
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CA-NS
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CA-ON
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CA-QC
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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-GA
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US-IL
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US-IN
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US-KY
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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-NH
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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-OK
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US-PA
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US-RI
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US-SC
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US-TN
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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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Culms densely tufted, lateral or central, ascending or lax to decumbent, 39–47 cm × 0.8–2 mm.
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Leaves: basal sheaths light-brown;
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blades ascending, midrib and 2 lateral-veins developed, occasionally slightly corrugated, 19–25 cm × 5–26 mm, blades of overwintering leaves smooth or, rarely, sparsely papillose abaxially.
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Inflorescences: peduncles of proximal spikes erect, 0–3.4 cm, of lateral spikes 1.4–3.3 (–5.3) times as long as spikes they subtend;
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of terminal spikes 1–2.2 cm.
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Bracts 7.2–17.5 cm × 2–8 mm, bract blade of distal lateral spikes linear, narrower than spikes, widest bract blade of distalmost lateral spike 0.5–3.4 mm wide.
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Spikes (3–) 4 per culm;
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lateral spikes 9–33 × 3.2–4 mm;
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terminal spike linear to clavate, 23–24 (–34) × 1.5–3 mm.
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Pistillate scales 2.5–3 × 1.2–1.5 mm, apex acute or apiculate.
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Staminate scales 3–3.5 × 1–1.5 mm, oblongovate, margins white-hyaline or brownish, apex obtuse or acute.
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Anthers 2.6–3 mm.
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Perigynia 3–20 per spike, usually separate, ratio of longer lateral spike length to perigynia number 1.9–3.4, ascending, conspicuously (22–) 25–32-veined, (2.6–) 3.2–4.1 (–4.6) × 1.2–1.6 mm;
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beak straight, 0.5–1.4 mm.
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Achenes broadly ellipsoid, 1.8–2.2 (–3.4) × 1–1.4 mm. 2n = 40.
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corrugated
occasionally slightly
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papillose
sparsely; abaxially
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1.4-3.3(-5.3) times as long as spikes
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