Carex jamesii Schweinitz (Q494)
Carex jamesii is a taxon with the rank species within the section Carex sect. Phyllostachyae
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| English |
Carex jamesii Schweinitz
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Carex jamesii is a taxon with the rank species within the section Carex sect. Phyllostachyae
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Statements
taxon/id/Carex jamesii Schweinitz
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Carex jamesii Schweinitz
Carex jamesii
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-ON
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US-AL
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US-AR
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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-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-SC
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US-TN
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US-TX
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US-VA
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US-WV
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US-WI
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100–400 m
100 meter
400 meter
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cataphylls with concave cells.
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Leaves: basal sheaths golden brown to dark-brown;
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blades green, eceeding culms, 0.8–4.8 mm wide, herbaceous, margins green, scabrous.
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Lateral spikes 1–5, basal, on spreading to nodding peduncles.
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Terminal spikes with staminate portion 3–13flowered, (4.2–) 5.814.5 × 0.40.8 mm;
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Pistillate scales green, margins connate, hyaline, white, occasionally tinged reddish-brown;
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proximal scales with margins 1.4–3 mm, apex long-acuminate;
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distal scales with margins 0.4–0.8 mm wide, apex acuminate, awnless.
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Staminate scales ovate, 1.1–1.8 (–2.1) × 1.2–1.5 mm, 0.12–0.25 (–0.75) length of staminate portion of terminal spike, margins hyaline, white, often with reddish-brown subapical band, apex truncate or broadly obtuse.
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Anthers 0.6–1.6 mm.
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Perigynia green to bronze, globose to ellipsoid, 4.4–7.2 × 1.9–2.4 mm, tightly enveloping achenes, apex abruptly tapering;
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beak 1.6–3.8 mm, scabrous.
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Stigmas filiform, flexuous, strongly papillose.
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Achenes dark-brown, globose to ellipsoid, 2–2.6 × 1.7–2.4 mm. 2n = 66, 70.
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0.25 length of staminate portion
0.75 length of staminate portion
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0.12 length of staminate portion
0.25 length of staminate portion
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