Carex sect. Chordorrhizae (Heuffel) Meinshausen (Q135)

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Carex sect. Chordorrhizae is a taxon with the rank section within the genus Carex
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Carex sect. Chordorrhizae (Heuffel) Meinshausen
Carex sect. Chordorrhizae is a taxon with the rank section within the genus Carex

    Statements

    taxon/id/Carex sect. Chordorrhizae (Heuffel) Meinshausen
    0 references
    Carex sect. Chordorrhizae (Heuffel) Meinshausen
    Carex sect. Chordorrhizae
    (Heuffel) Meinshausen
    FNA Editorial Committee. 2002. Flora of North America north of Mexico. Volume 23: Cyperaceae. Oxford University Press, New York.
    accepted
    Carex sect. Chordorrhizae
    North America
    Eurasia
    Plants not cespitose, short-rhizomatous, long-stoloniferous.
    Culms brown at base.
    Leaves: basal sheaths not fibrous;
    blades M-shaped in cross-section when young, widest more than 1 mm wide, glabrous.
    Inflorescences capitate or short-ovoid;
    bracts scalelike, sheathless;
    spikes 2–7, androgynous, sessile, without prophylls.
    Proximal pistillate scales with apex obtuse to shortacuminate.
    Perigynia ascending, strongly veined on both faces, stipitate, oblongovate to broadly elliptic, planoconvex to unequally biconvex in cross-section, 2–4 (–4.5 mm), base rounded, with spongy tissue, margins rounded, apex rounded, abruptly beaked, glabrous;
    beak 0.3–0.6 mm, less than 1/5 length of body, with abaxial suture, entire or sparsely serrulate, emarginate.
    Achenes biconvex, only slightly smaller than bodies of perigynia;