Eleocharis atropurpurea (Retzius) J. Presl & C. Presl in C. B. Presl (Q3309)

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Eleocharis atropurpurea is a taxon with the rank species within the series Eleocharis ser. Maculosae
Language Label Description Also known as
English
Eleocharis atropurpurea (Retzius) J. Presl & C. Presl in C. B. Presl
Eleocharis atropurpurea is a taxon with the rank species within the series Eleocharis ser. Maculosae

    Statements

    taxon/id/Eleocharis atropurpurea (Retzius) J. Presl & C. Presl
    0 references
    Eleocharis atropurpurea (Retzius) J. Presl & C. Presl
    Eleocharis atropurpurea
    (Retzius) J. Presl & C. Presl
    FNA Editorial Committee. 2002. Flora of North America north of Mexico. Volume 23: Cyperaceae. Oxford University Press, New York.
    accepted
    Eleocharis atropurpurea
    (Retzius) J. Presl & C. Presl
    éléocharide pourpre-noir (French)
    héléocharis pourpre-noir (French)
    souchet pourpre-noir (French)
    purple spikerush (English)
    Purple spikerush (English)
    Mexico
    West Indies
    Central America
    South America
    Europe (naturalized)
    Africa
    Pacific Islands
    canal banks
    hammocks
    irrigation ditches
    pond margins
    maritime shores
    rice fields
    Plants tufted, without creeping rhizomes.
    Culms 2–12 (–19) cm × 0.2–0.4 mm.
    Leaves: distal leaf-sheaths firm, distally tightly sheathing, apex acute.
    Spikelets ovoid to ellipsoid, 2–6 (–8) × 1–2.5 mm, apex acute;
    proximal scale with or without flower, not amplexicaulous;
    floral scales to 100, 15–19 per mm of rachilla, often loosely appressed, dark redbrown to stramineous, ovate to elliptic, 0.6–1.3 × 0.3–0.7 mm, membranous, apex rounded to acute.
    Flowers: perianth bristles (0–) 4–6, typically 4, colorless to whitish, vestigial to 1/2 as long as achene, smooth or spinuliferous;
    Achenes black, obovoid, biconvex, 0.3–0.5 × 0.3–0.4 mm, apex often constricted proximal to tubercle, smooth at 40X.
    Tubercles stramineous to whitish, umbonate to subconic, 0.1–0.2 × 0.1–0.2 mm, apex acute.