Carex communis L. H. Bailey (Q60)

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Carex communis is a taxon with the rank species within the section Carex sect. Acrocystis
Language Label Description Also known as
English
Carex communis L. H. Bailey
Carex communis is a taxon with the rank species within the section Carex sect. Acrocystis

    Statements

    taxon/id/Carex communis L.H. Bailey
    0 references
    Carex communis L.H. Bailey
    Carex communis
    L.H. Bailey
    FNA Editorial Committee. 2002. Flora of North America north of Mexico. Volume 23: Cyperaceae. Oxford University Press, New York.
    accepted
    fibrous-root sedge (English)
    common beech sedge (English)
    colonial oak sedge (English)
    carex commun (French)
    Plants densely cespitose;
    rhizomes ascending, reddish-brown to purplish brown, 0–3 mm, stout or absent.
    Culms 20–60 cm, scabrous distally;
    bases (remnants of old leaves) slightly or not fibrous.
    Leaf-blades green, 1.8–5 mm wide, widest leaves 3+ mm wide, herbaceous, papillose to scabrous abaxially, papillose to scabrous adaxially.
    Inflorescences usually with both staminate and pistillate spikes, rarely only pistillate;
    peduncle of staminate spike 0.7–9.7 mm;
    proximal nonbasal bracts leaflike, usually shorter than inflorescences.
    Spikes: proximal pistillate spikes 2–3 (basal spike 0);
    cauline spikes usually clearly separated, with 3–10 perigynia;
    staminate spikes 3.1–15.5 × 1–2.5 mm.
    Scales: pistillate scales pale-brown to dark reddish-brown, often with broad white margins, ovate to lanceolate, 2.5–4.8 × 1.2–2 mm, shorter than to exceeding perigynia, apex obtuse to acuminate or short-awned;
    staminate scales elliptic to obovate, 3.1–5.2 × 0.7–2.2 mm, apex obtuse to acuminate or short-aristate.
    Anthers 1.8–3 mm.
    Perigynia pale green, veinless, globose to obovoid, 2.7–3.8 × 1.2–2.6 mm, as long as wide;
    beak usually straight, occasionally slightly bent, pale green, 0.5–2.3 mm, weakly ciliate-serrulate, apical teeth 0.1–0.5 mm.
    Achenes pale-brown, globose to obovoid, round to obtusely trigonous in cross-section, 1.4–2.3 × 1–1.4 mm.