Carex sect. Spirostachyae (Drejer) L. H. Bailey in J. M. Coulter (Q544)

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Carex sect. Spirostachyae is a taxon with the rank section within the genus Carex
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Carex sect. Spirostachyae (Drejer) L. H. Bailey in J. M. Coulter
Carex sect. Spirostachyae is a taxon with the rank section within the genus Carex

    Statements

    taxon/id/Carex sect. Spirostachyae (Drejer) L.H. Bailey
    0 references
    Carex sect. Spirostachyae (Drejer) L.H. Bailey
    Carex sect. Spirostachyae
    (Drejer) L.H. Bailey
    FNA Editorial Committee. 2002. Flora of North America north of Mexico. Volume 23: Cyperaceae. Oxford University Press, New York.
    accepted
    Carex sect. Spirostachyae
    Plants cespitose, short-rhizomatous.
    Culms redbrown at base.
    Leaves: basal sheaths not fibrous;
    blades not or sparingly septate-nodulose, V-shaped in cross-section when young, glabrous.
    Inflorescences racemose, with 3–6 spikes;
    proximal nonbasal bracts leaflike, long-sheathing, sheath 4+ mm, longer than diameter of stem;
    lateral spikes pistillate, pedunculate, peduncle usually not longer than spike, prophyllate;
    terminal spike staminate.
    Proximal pistillate scales with apex acute or cuspidate.
    Perigynia ascending or spreading, yellow-or gray-green or brown, usually speckled reddish-brown, strongly 10–16-veined, elliptic or ovate, rounded-trigonous in cross-section, base cuneate, apex tapering to beak, glabrous;
    beak 0.4–1.4 mm, bidentate, teeth 0.2–0.4 mm.
    Achenes trigonous, smaller than bodies of perigynia;