Carex sect. Ammoglochin Dumortier (Q77)

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Carex sect. Ammoglochin is a taxon with the rank section within the genus Carex
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English
Carex sect. Ammoglochin Dumortier
Carex sect. Ammoglochin is a taxon with the rank section within the genus Carex

    Statements

    taxon/id/Carex sect. Ammoglochin Dumortier
    0 references
    Carex sect. Ammoglochin Dumortier
    Carex sect. Ammoglochin
    Dumortier
    FNA Editorial Committee. 2002. Flora of North America north of Mexico. Volume 23: Cyperaceae. Oxford University Press, New York.
    accepted
    Carex sect. Ammoglochin
    Temperate regions of the Northern Hemisphere
    Plants not cespitose, sometimes extensively colonial, long-rhizomatous;
    rhizomes 1–3 mm thick, with persistent, brown scales, thin, loose cortex, easily detatched when dry.
    Culms brown or black at base.
    Leaves: basal sheaths eventually fibrous;
    sheath fronts membranous, distal leaves with narrow hyaline or whitish-hyaline band extending at least 1/2 sheath length;
    blades V-shaped in cross-section when young, widest leaves 1+ mm, glabrous.
    Inflorescences racemose, with 3–25 spikes, ovoid to cylindric;
    proximal bracts scalelike, usually cuspidate, sheathless;
    lateral spikes pistillate, staminate, or androgynous, sessile, without prophylls;
    terminal spike pistillate or androgynous.
    Proximal pistillate scales with apex obtuse to acuminate or short-awned.
    Perigynia ascending, veined on both faces, sessile, lanceolate to broadly ovate, planoconvex, base rounded, not spongy, margins acutely angled, at least distally, winglike margins 0.1+ mm wide, apex abruptly contracted to beak, glabrous;
    beak more than 0.25 mm, with abaxial suture, margins often serrulate, apex bidentate.
    Achenes biconvex, smaller than bodies of perigynia;