Carex striatula Michaux (Q279)
Carex striatula is a taxon with the rank species within the section Carex sect. Laxiflorae
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Carex striatula Michaux
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Carex striatula is a taxon with the rank species within the section Carex sect. Laxiflorae
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Statements
taxon/id/Carex striatula Michaux
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Carex striatula Michaux
Carex striatula
Michaux
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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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-FL
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US-GA
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US-KY
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US-LA
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US-MD
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US-MS
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US-NJ
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US-NY
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US-NC
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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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Culms densely tufted, central or lateral, ascending or slightly decumbent, 45–62 cm × 0.5–1 mm.
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Leaves: basal sheaths tan or light-brown;
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sheaths green, sometimes glaucous, 4–88 mm;
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blades green, sometimes glaucous, midrib and 2 lateral-veins developed, flat or slightly corrugate, 30–46 cm × 3–14 mm, blades of overwintering leaves smooth or, rarely, sparsely papillose abaxially.
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Inflorescences: peduncles of proximal spikes 0–5 cm, arising from proximal 1/3 of culms, 1.4–3.3 (–5.3) times as long as spikes they subtend;
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of terminal spikes 0.4–12 cm.
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Bracts 0.6–14 cm × 0.8–6 mm, bract blades 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 22–62 × 3–5 mm;
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distal lateral spikes separate;
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terminal spike linear to linear-clavate, 22–32 (–36) × 2–3 mm.
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Pistillate scales 3.4–5 × 1.2–2.2 mm, apex aristate, apiculate, or acute.
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Staminate scales oblongovate, 3–5 × 1.2–2 mm, margins hyaline or, occasionally, light-brown, apex obtuse or acute.
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Anthers 3–3.2 mm.
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Perigynia 6–18 per spike, scattered to loosely overlapping, ratio of longer lateral spike length to perigynia number 1.9–3.4, ascending, finely, conspicuously (22–) 25–32-veined, elongate, (3.4–) 3.9–5.1 × 1.2–2 mm;
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beak straight or slightly curved, 0.6–1.7 mm.
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Achenes elongate-obovoid, 2.2–2.8 (–4.6) × 1–1.8 mm. 2n = 36, 40.
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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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(22-)25-32-veined
finely; conspicuously
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