Carex laxiculmis Schweinitz (Q108)
Carex laxiculmis is a taxon with the rank species within the section Carex sect. Careyanae
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| English |
Carex laxiculmis Schweinitz
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Carex laxiculmis is a taxon with the rank species within the section Carex sect. Careyanae
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Statements
taxon/id/Carex laxiculmis Schweinitz
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Carex laxiculmis Schweinitz
Carex laxiculmis
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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US-AL
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US-AR
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US-CT
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US-DC
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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-IA
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US-KY
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US-ME
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US-MA
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US-MD
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US-MI
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US-MO
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US-NC
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US-NH
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US-NJ
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US-NY
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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-VA
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US-VT
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US-WV
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US-WI
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Plants densely cespitose.
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Culms erect, ascending, or spreading, 9–48 cm × 0.6–1 mm.
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Leaves: basal sheaths white or very light-brown;
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nonbasal sheaths 7–32 mm, sheath blades 0.9–11.9 cm × 1–7 mm;
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leaf-blades erect, ascending, or spreading, green or glaucous, 8–36 cm × 3–12 mm;
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blades of vegetative shoots 0–3.5 times wider than bract blades.
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Inflorescences: spikes (3–) 4 (–5) per culm, scattered;
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peduncles of pistillate spikes exserted 0–9 cm;
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of staminate spikes exserted 0–9.5 cm;
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bracts 2–11.8 cm × 1.3–4.8 mm.
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Pistillate spikes: the proximal basal, scattered, drooping.
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Staminate spike 1, linear, 8–22 × 1.2–3 mm.
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Pistillate scales keeled, 2.5–3.2 × 1–1.5 mm, midribs green, margins hyaline or, occasionally, reddish-brown outward, apex cuspidate to acute, awn to 1 mm, proximal scale of lateral spike sterile or subtending a staminate flower.
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Staminate scales obovate, 3.5–4.5 × 1–1.2 mm, midribs green, margins hyaline or reddish-brown outward, apex acute.
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Perigynia 4–9 per spike, finely veined, elliptic-ovoid, 2.5–4 × 1.5–2 mm;
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beak slightly bent, tapering.
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Achenes obvoid to broadly ovoid, 2.2–3.2 × 1.2–1.8 mm, slightly concave at maturity, tightly fitting in perigynia.
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0-3.5 times wider than bract blades
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