Carex oligocarpa Willdenow (Q219)
Carex oligocarpa is a taxon with the rank species within the section Carex sect. Griseae
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Carex oligocarpa Willdenow
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Carex oligocarpa is a taxon with the rank species within the section Carex sect. Griseae
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Statements
taxon/id/Carex oligocarpa Willdenow
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Carex oligocarpa Willdenow
Carex oligocarpa
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-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-IA
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US-KS
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US-KY
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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-MS
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US-MO
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US-NE
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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-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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40–800 m
40 meter
800 meter
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Plants densely cespitose;
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rhizome internodes 0.2–6 (–8) mm, 1.6–2.2 mm thick.
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Culms strongly purple-red to 3.2–8.8 cm high at base, 10–55 cm;
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longest vegetative shoots 0.88–1.4 times as long as longest culms.
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Leaves: sheaths glabrous;
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blades green, widest blades (1.8–) 2.4–4 (–4.6) mm wide, smooth abaxially.
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Inflorescences 0.46–0.94 (–0.99) of culm height;
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peduncles of lateral spikes barely scaberulous or smooth;
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peduncles of terminal spikes 2.6–113 mm, barely to much exceeding lateral spikes;
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proximal bract with sheath tight, abaxially glabrous, sheath front convex, elongated (0.8–) 1.1–4.0 mm beyond apex;
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ligules 0.8–4.1 (–6.4) mm;
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blade uniformly green;
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Spikes 3–5, widely separate or distal 2–3 spikes overlapping;
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lateral spikes pistillate with 2–8 (–10) perigynia, (4–) 9–19 × 3.8–7.5 (–9.2) mm, ratio of spike length (in mm) to flower number = 1.5–3.8;
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terminal spikes (7–) 14–32 (–45) × 1.1–2.3 (–3) mm.
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Pistillate scales 2.8–6.8 × 1.5–2.4 mm, margins whitish, entire, apex with awn 0.7–4.1 mm.
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Staminate scales 4–5 × 1.3–1.6 mm.
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Anthers 2.8–3.5 mm.
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Perigynia distichously imbricate, 51–67-veined, unwrinkled, narrowly obovoidellipsoid, obtusely triangular in cross-section, 3.7–4.7 × 1.6–1.9 (–2) mm, (1.8–) 2.2–2.6 times as long as wide, dull, base gradually tapered, abruptly contracted;
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beak straight, 0.4–1.2 mm.
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Achenes obovoid, 2.8–3.4 × 1.5–1.8 mm, tightly enveloped by perigynia;
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stipe straight, 0.3–0.6 mm;
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beak straight, (0.05–) 0.2–0.4 (–0.5) mm.
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0.88-1.4 times as long as longest culms
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