Difference between revisions of "Carex sect. Acrocystis Dumortier (Q54)"
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Latest revision as of 12:36, 24 June 2022
Carex sect. Acrocystis is a taxon with the rank section within the genus Carex
| Language | Label | Description | Also known as |
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Carex sect. Acrocystis Dumortier
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Carex sect. Acrocystis is a taxon with the rank section within the genus Carex
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Statements
taxon/id/Carex sect. Acrocystis Dumortier
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Carex sect. Acrocystis Dumortier
Carex sect. Acrocystis
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 loosely or densely cespitose, very short to long rhizomatous, stoloniferous.
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Culms red or brown at base, shorter than leaves.
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Leaves: basal sheaths fibrous;
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blades V-shaped in cross-section when young, adaxial surface without 2 marginal veins more prominent than midvein, blade 2+ cm, longer than its sheath, 2–4.5 mm wide, glabrous.
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Inflorescences racemose, with 2–6 spikes;
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proximal nonbasal bracts filiform or scalelike, sheathless, abaxial surface smooth;
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lateral spikes pistillate or, rarely, gynecandrous or staminate, sometimes some basal, pedunculate, prophyllate;
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terminal spike staminate.
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Proximal pistillate scales white-hyaline or redbrown, 1–3-veined, apex obtuse to acuminate or cuspidate, rarely awned.
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Perigynia ascending, veined or veinless except for 2 strong marginal veins, stipitate, elliptic or ovate to orbiculate, round or rounded-trigonous in cross-section, less than 10 mm, base tapering or rounded, often spongy, apex usually abruptly beaked, pubescent, rarely glabrous;
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beak straight or bent, 0.5–2.3 mm, bidentate, teeth 0.2–0.5 mm.
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Achenes trigonous, rarely biconvex, almost as large as bodies of perigynia;
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orbiculate round or rounded-trigonous
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orbiculate round or rounded-trigonous
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