Difference between revisions of "Eleocharis R. Brown (Q3281)"
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Latest revision as of 12:41, 24 June 2022
Eleocharis is a taxon with the rank genus within the tribe Eleocharideae
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Eleocharis R. Brown
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Eleocharis is a taxon with the rank genus within the tribe Eleocharideae
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Statements
taxon/id/Eleocharis R. Brown
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Eleocharis R. Brown
Eleocharis
R. Brown
FNA Editorial Committee. 2002. Flora of North America north of Mexico. Volume 23: Cyperaceae. Oxford University Press, New York.
accepted
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Herbs, annual or perennial, usually cespitose, often rhizomatous, sometimes stoloniferous;
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rhizomes rarely with terminal tubers or bulbs, horizontal and long or ascending and caudexlike.
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Culms sometimes solitary, terete, 3–5-angled or more, or strongly compressed in cross-section, spongy with internal air cavities and incomplete transverse septa or sometimes hollow with complete transverse septa.
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Leaves basal, 2 per culm;
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blades absent or a mucro or awn (tooth) at apex of sheath, very rarely flattened, to 6 cm.
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Inflorescences terminal;
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involucral-bracts absent, rarely a proximal scale of spikelet resembling short bract.
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Spikelets: scales 4–500 or more, spirally or rarely distichously arranged, each subtending flower or proximal 1–2 (–3) empty, stramineous (straw-brown) to medium brown or red brown or blackish brown.
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Flowers bisexual;
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styles linear, 2–3-fid, base (tubercle) usually persistent, usually enlarged, usually different in appearance from achene.
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Achenes biconvex, planoconvex, or trigonous to subterete.
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arranged
spirally; rarely distichously
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stramineous
medium brown or red brown or blackish brown
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