Carex sect. Porocystis Dumortier (Q502)

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

    Statements

    taxon/id/Carex sect. Porocystis Dumortier
    0 references
    Carex sect. Porocystis Dumortier
    Carex sect. Porocystis
    Dumortier
    FNA Editorial Committee. 2002. Flora of North America north of Mexico. Volume 23: Cyperaceae. Oxford University Press, New York.
    accepted
    Carex sect. Porocystis
    Temperate regions of the Northern Hemisphere
    Central America
    and South America
    Plants cespitose, short-rhizomatous.
    Culms redbrown at base, rough distally.
    Leaves: basal sheaths fibrous;
    blades V-shaped in cross-section when young, not more than 8 mm wide, usually pubescent, at least at junction of blade and sheath, sometimes very sparsely.
    Inflorescences racemose, spikes 2–6;
    proximal nonbasal bracts filiform or leaflike, sheathless;
    lateral spikes pistillate, with not more than 40 (–50) perigynia, pedunculate, prophyllate;
    terminal spike gynecandrous or staminate.
    Proximal pistillate scales with apex obtuse to acuminate or awned, glabrous, sometimes margins ciliate.
    Perigynia spreading, abaxial face veined, adaxial face veined or veinless, with 2, strong, marginal veins, sometimes stipitate, sometimes inflated, elliptic to broadly obovate, rounded-trigonous to round in cross-section, 1.7–4 mm, base rounded or tapering, apex rounded or tapering, beakless or, rarely, beaked, glabrous or pubescent;
    beak 0.2–0.5 (–1) mm, orifice entire or subentire.
    Achenes trigonous, almost as large as bodies of perigynia;