Carex sect. Rostrales Meinshausen (Q531)

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Carex sect. Rostrales is a taxon with the rank section within the genus Carex
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English
Carex sect. Rostrales Meinshausen
Carex sect. Rostrales is a taxon with the rank section within the genus Carex

    Statements

    taxon/id/Carex sect. Rostrales Meinshausen
    0 references
    Carex sect. Rostrales Meinshausen
    Carex sect. Rostrales
    Meinshausen
    FNA Editorial Committee. 2002. Flora of North America north of Mexico. Volume 23: Cyperaceae. Oxford University Press, New York.
    accepted
    Carex sect. Rostrales
    e North America
    e Asia
    one species extending to tropical mountains of se Asia
    Plants cespitose, rhizomatous.
    Culms yellowish or brown, without trace of red or purple at base.
    Leaves: basal sheaths fibrous or not;
    blades M-shaped in cross-section when young, glabrous.
    Inflorescences racemose, with 2–6 spikes;
    proximal bracts leaflike, sheathing, sheath 4+ mm, longer than diameter of stem;
    lateral spikes pistillate or distal lateral spike androgynous, pedunculate, prophyllate;
    terminal spike staminate.
    Proximal pistillate scales with 5–7-veined center, apex acute to awned.
    Perigynia spreading to somewhat reflexed, rarely ascending, veined, stipitate, ovate or lanceolate, round or rounded-trigonous in cross-section, base round-tapering, apex tapering or, rarely, contracted to beak, glabrous;
    beak, when present, bidentate, teeth erect.
    Achenes brown, oblong-ovoid or ovoid, trigonous, smaller than bodies of perigynia, smooth;
    style persistent.