Eleocharis R. Brown (Q3281)

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Eleocharis is a taxon with the rank genus within the tribe Eleocharideae
Language Label Description Also known as
English
Eleocharis R. Brown
Eleocharis is a taxon with the rank genus within the tribe Eleocharideae

    Statements

    taxon/id/Eleocharis R. Brown
    0 references
    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
    spikerush (English)
    spikesedge (English)
    Spike-rush (English)
    spikesedge (English)
    éléocharide (English)
    Herbs, annual or perennial, usually cespitose, often rhizomatous, sometimes stoloniferous;
    rhizomes rarely with terminal tubers or bulbs, horizontal and long or ascending and caudexlike.
    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.
    Leaves basal, 2 per culm;
    blades absent or a mucro or awn (tooth) at apex of sheath, very rarely flattened, to 6 cm.
    Inflorescences terminal;
    involucral-bracts absent, rarely a proximal scale of spikelet resembling short bract.
    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.
    Flowers bisexual;
    styles linear, 2–3-fid, base (tubercle) usually persistent, usually enlarged, usually different in appearance from achene.
    Achenes biconvex, planoconvex, or trigonous to subterete.