Difference between revisions of "Carex sect. Heleoglochin Dumortier (Q220)"
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Latest revision as of 12:38, 24 June 2022
Carex sect. Heleoglochin is a taxon with the rank section within the genus Carex
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Carex sect. Heleoglochin Dumortier
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Carex sect. Heleoglochin is a taxon with the rank section within the genus Carex
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Statements
taxon/id/Carex sect. Heleoglochin Dumortier
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Carex sect. Heleoglochin Dumortier
Carex sect. Heleoglochin
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 densely cespitose, short-rhizomatous.
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Culms brown to dark-brown at base, not more than 1 mm wide distally.
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Leaves: basal sheaths not fibrous;
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blades V-shaped in cross-section when young, glabrous.
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Inflorescences compound, from evidently paniculate to often condensed, with numerous spikes;
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proximal bracts awl-shaped or bristlelike, others scalelike or absent, sheathless;
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lateral spikes androgynous or pistillate, sessile, without prophylls;
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terminal spikes androgynous.
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Proximal pistillate scales with apex acute to cuspidate.
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Perigynia usually spreading, strongly veined abaxially, obscurely veined or veinless adaxially, shortly stipitate, lance to deltate-ovate or obovate, unequally biconvex or planoconvex in cross-section, thick-walled or leathery, base tapered to rounded, with spongy tissue, margins acutely angled, apex ± abruptly beaked, glabrous;
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beak shortly bidentate, with abaxial suture.
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Achenes biconvex, smaller than bodies of perigynia;
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style deciduous, slightly thickened at base.
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