Carex sect. Chordorrhizae (Heuffel) Meinshausen (Q135)
Carex sect. Chordorrhizae is a taxon with the rank section within the genus Carex
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English |
Carex sect. Chordorrhizae (Heuffel) Meinshausen
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Carex sect. Chordorrhizae is a taxon with the rank section within the genus Carex
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Statements
taxon/id/Carex sect. Chordorrhizae (Heuffel) Meinshausen
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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
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Plants not cespitose, short-rhizomatous, long-stoloniferous.
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Culms brown at base.
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Leaves: basal sheaths not fibrous;
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blades M-shaped in cross-section when young, widest more than 1 mm wide, glabrous.
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Inflorescences capitate or short-ovoid;
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bracts scalelike, sheathless;
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spikes 2–7, androgynous, sessile, without prophylls.
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Proximal pistillate scales with apex obtuse to shortacuminate.
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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;
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beak 0.3–0.6 mm, less than 1/5 length of body, with abaxial suture, entire or sparsely serrulate, emarginate.
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Achenes biconvex, only slightly smaller than bodies of perigynia;
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0 length of body
1/5 length of body
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only slightly smaller
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