Difference between revisions of "Carex prasina Wahlenberg (Q239)"
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Latest revision as of 12:40, 24 June 2022
Carex prasina is a taxon with the rank species within the section Carex sect. Hymenochlaenae
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Carex prasina Wahlenberg
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Carex prasina is a taxon with the rank species within the section Carex sect. Hymenochlaenae
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Statements
taxon/id/Carex prasina Wahlenberg
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Carex prasina Wahlenberg
Carex prasina
Wahlenberg
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-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-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-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-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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Plants densely cespitose.
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Culms green or slightly suffused with maroon at base;
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flowering-stems 30–80 cm, usually longer than leaves at maturity, 0.8–1.1 mm thick, glabrous but finely scabrous on angles within inflorescence.
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Leaves: basal sheaths 2–3, green or tinged with maroon, bladeless, very short or absent, glabrous;
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blades flat, 2–5 mm wide, glabrous.
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Inflorescences: peduncles of lateral spikes slender, to 4 cm, mostly shorter and usually shorter than spikes, glabrous;
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peduncle of terminal spike less than 10 mm, minutely scabrous;
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proximal bracts equaling or exceeding inflorescences;
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sheaths less than 3 mm;
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blades 2–3 mm wide.
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Lateral spikes 2–4, 1 per node, each overlapping 1 above, uncrowded, nodding or drooping at maturity, pistillate with 25–50 perigynia, narrowly cylindric but broader and more densely flowered at distal end (flowers 1 mm apart) than proximal end (flowers 3.5 mm apart), 15–60 × 3.5–5.5 mm.
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Terminal spike staminate or gynecandrous with a few pistillate flowers distally, 25–40 × 2.5–4 mm.
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Pistillate scales white-hyaline with broad green midrib, ovateoblong, shorter than mature perigynia, apex cuspidate or with green awn about as long as body of scales, scabrous at tip, otherwise glabrous.
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Perigynia green to golden green at maturity, strongly 2-ribbed but otherwise veinless or nearly so, loosely enveloping achene, lanceovoid, 2.5–4 × 1–1.5 mm, membranous, base with short stipe, apex tapering to flattened, often bent beak, glabrous;
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beak 1–1.5 mm, with minute hyaline teeth.
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Achenes substipitate, 1.3–2 × 1–1.2 mm. 2n = 60.
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