Carex sect. Phacocystis Dumortier (Q385)
Carex sect. Phacocystis is a taxon with the rank section within the genus Carex
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Carex sect. Phacocystis Dumortier
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Carex sect. Phacocystis is a taxon with the rank section within the genus Carex
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Statements
taxon/id/Carex sect. Phacocystis Dumortier
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Carex sect. Phacocystis Dumortier
Carex sect. Phacocystis
Dumortier
FNA Editorial Committee. 2002. Flora of North America north of Mexico. Volume 23: Cyperaceae. Oxford University Press, New York.
accepted
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Plants cespitose or not, short to long rhizomatous.
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Culms brown or redbrown at base.
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Leaves: basal sheaths fibrous or not;
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blades V-shaped or M-shaped in cross-section when young, glabrous, sometimes papillose.
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Inflorescences racemose, with 2–8 (–10) spikes;
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proximal bracts scalelike or leaflike, sheathless or short-sheathing;
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lateral spikes pistillate, occasionally androgynous, or the distal 1–3 staminate, pedunculate or subsessile, prophyllate, at least 2 times as long as wide;
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terminal spikes staminate or, rarely, gynecandrous.
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Proximal pistillate scales with apex obtuse to acuminate or, at least the proximal, long-awned.
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Perigynia erect or ascending, rarely spreading, veined or veinless on faces, with 2 prominent marginal veins, sessile or stipitate, elliptic to ovate or obovate, planoconvex or biconvex in cross-section, base rounded or tapering, apex rounded or tapering to beak or not, usually papillose or, sometimes, smooth;
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Achenes biconvex, smaller than bodies of perigynia;
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elliptic
ovate or obovate planoconvex or biconvex
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elliptic
ovate or obovate planoconvex or biconvex
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