Difference between revisions of "Carex sect. Rostrales Meinshausen (Q531)"
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Latest revision as of 12:41, 24 June 2022
Carex sect. Rostrales is a taxon with the rank section within the genus Carex
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Carex sect. Rostrales Meinshausen
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Carex sect. Rostrales is a taxon with the rank section within the genus Carex
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Statements
taxon/id/Carex sect. Rostrales Meinshausen
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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
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one species extending to tropical mountains of se Asia
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Plants cespitose, rhizomatous.
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Culms yellowish or brown, without trace of red or purple at base.
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Leaves: basal sheaths fibrous or not;
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blades M-shaped in cross-section when young, glabrous.
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Inflorescences racemose, with 2–6 spikes;
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proximal bracts leaflike, sheathing, sheath 4+ mm, longer than diameter of stem;
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lateral spikes pistillate or distal lateral spike androgynous, pedunculate, prophyllate;
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terminal spike staminate.
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Proximal pistillate scales with 5–7-veined center, apex acute to awned.
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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;
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beak, when present, bidentate, teeth erect.
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Achenes brown, oblong-ovoid or ovoid, trigonous, smaller than bodies of perigynia, smooth;
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style persistent.
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