Carex gracilescens Steudel (Q274)

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Carex gracilescens is a taxon with the rank species within the section Carex sect. Laxiflorae
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English
Carex gracilescens Steudel
Carex gracilescens is a taxon with the rank species within the section Carex sect. Laxiflorae

    Statements

    taxon/id/Carex gracilescens Steudel
    0 references
    Carex gracilescens Steudel
    Carex gracilescens
    Steudel
    FNA Editorial Committee. 2002. Flora of North America north of Mexico. Volume 23: Cyperaceae. Oxford University Press, New York.
    accepted
    carex grĂȘle (French)
    slender loose-flowered sedge (English)
    slender wood sedge (English)
    rather slender sedge (English)
    slender sedge (English)
    Carex grĂȘle (English)
    1 reference
    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/
    1 reference
    Herbier Marie-Victorin (MT). Université de Montréal, Montréal, QC. Specimen. http://www.biodiversite.umontreal.ca/herbier-marie-victorin?lang=en
    moist to dry deciduous
    mixed deciduous-evergreen forests
    woodland edges
    partial shade
    limestone
    marl soils
    stream bottoms
    steep slopes
    0–600 m
    Culms densely tufted, ascending, lax or, occasionally, decumbent, 13–78 cm × 0.8–1 mm.
    Leaves: basal sheaths purple or purple-tinged;
    sheaths 2–42 mm;
    blades ascending or lax, erect, green or yellow-green, midrib developed adaxially, 2 lateral-veins abaxially, 19–38 cm × 1–5 mm, blades of overwintering leaves smooth.
    Inflorescences: peduncles proximal pistillate spikes to 11 cm, distal spike sessile;
    staminate spike 0.5–10.6 cm.
    Bracts 0.5–11.2 cm × 0.5–4 mm, angles of bract sheath denticulate;
    bract blade of distal lateral spikes linear, narrower than spikes, not concealing them;
    widest bract blade of distalmost lateral spike 0.5–3.4 mm wide.
    Spikes (3–) 4 (–5) per culm;
    lateral spikes 5–27 × 3–4 mm;
    internode between proximal scales in proximal spike 1.1–3.2 (–4.8) mm;
    terminal spike linear, 11–21 × 1–2.2 mm.
    Pistillate scales 2.8–3 × 1–1.2 mm, apex acute to aristate, awn to 1 mm.
    Staminate scales 3.5–4 × 1.2–1.5 mm, margins hyaline, purple-brown or brownish purple-tinged, apex acute.
    Anthers 2.6–3 mm.
    Perigynia 4–12 per spike, closely overlapping, aggregated, ascending, conspicuously (22–) 25–32-veined, elliptic-obovate, 2.8–3 × 1.5–1.8 mm, 1.8–2.7 times long as wide;
    beak abruptly bent, 0.2–0.8 mm.
    Achenes obovoid, 2.6–2.8 × 1.3–1.6 mm. 2n = 33, 38, 40.