Carex sect. Paludosae G. Don in J. C. Loudon (Q367)

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Carex sect. Paludosae is a taxon with the rank section within the genus Carex
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English
Carex sect. Paludosae G. Don in J. C. Loudon
Carex sect. Paludosae is a taxon with the rank section within the genus Carex

    Statements

    taxon/id/Carex sect. Paludosae G. Don
    0 references
    Carex sect. Paludosae G. Don
    Carex sect. Paludosae
    FNA Editorial Committee. 2002. Flora of North America north of Mexico. Volume 23: Cyperaceae. Oxford University Press, New York.
    accepted
    Carex sect. Paludosae
    Mostly temperate Asia and North America
    with a few species in South America and Africa
    Plants colonial, rarely cespitose, usually long-rhizomatous.
    Culms usually red-purple at base, sometimes only red tinged.
    Leaves: basal sheaths fibrous;
    sheaths and leaves somewhat septate-nodulose;
    blades usually M-shaped in cross-section when young, sometimes channeled or involute, adaxial surface usually with 2 marginal veins more prominent than midvein;
    leaves 0.7–21 mm wide, glabrous or, rarely, pubescent.
    Inflorescences racemose, with 2–10, rarely more, spikes, dense;
    proximal bracts leaflike, sheathless or sheath less than 4 mm, shorter or longer than diameter of stem;
    proximal 1–5 lateral spikes pistillate, with 40–200 perigynia, or, sometimes, some androgynous, pedunculate, prophyllate;
    lateral spikes staminate;
    terminal spike staminate.
    Proximal pistillate scales 1–3-veined, margins entire, apex acute to acuminate, often awned, usually glabrous, sometimes rough-ciliate apically or pubescent;
    distal scales acuminate or with awn less than 1/2 length of body.
    Perigynia usually ascending, brownish, veinless or to 28-veined at base, sometimes stipitate, not inflated, thick-walled, narrowly ovate to subcircular, rounded-trigonous to terete in cross-section, 2.5–8 × 1.2–3.5 mm, 2–2.5 times as long as wide, dull, base rounded, apex tapering to beak, glabrous or pubescent;
    beak straight, 0.2–2 mm, emarginate to bidentate, teeth, if present, 0.1–1 mm.
    Achenes trigonous, smaller than bodies of perigynia;
    style persistent or deciduous.