Cyperus lupulinus (Sprengel) Marcks (Q3255)

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Cyperus lupulinus is a taxon with the rank species within the subgenus Cyperus subg. Juncellus
Language Label Description Also known as
English
Cyperus lupulinus (Sprengel) Marcks
Cyperus lupulinus is a taxon with the rank species within the subgenus Cyperus subg. Juncellus

    Statements

    taxon/id/Cyperus lupulinus (Sprengel) Marcks
    0 references
    Cyperus lupulinus (Sprengel) Marcks
    Cyperus lupulinus
    (Sprengel) Marcks
    FNA Editorial Committee. 2002. Flora of North America north of Mexico. Volume 23: Cyperaceae. Oxford University Press, New York.
    accepted
    hop flatsedge (English)
    Great Plains flatsedge (English)
    slender cyperus (English)
    slender sand sedge (English)
    souchet petit-houblon (French)
    Herbs, perennial, cespitose, bases cormose;
    rhizomes knotted, beaded.
    Culms trigonous, (3–) 10–50 cm × 0.4–1.2 mm, glabrous.
    Leaves flat, 5–40 cm × 1–3.5 mm.
    Inflorescences: spikes rather densely ovoid to globose, 1.2–3.5 cm;
    rays 0 or 1–4, 1–6 cm;
    rachis 1–3.5 mm;
    bracts 2–4, horizontal to reflexed, flat, 6–25 cm;
    Spikelets 15–60, compressed, oblong-lanceoloid, (3–) 6–22 × 2.5–4 mm;
    floral scales deciduous, 5–22, off-white to light reddish-brown, laterally 3–5-ribbed, ovate-elliptic, 2.5–4 × 2–2.6 mm, margins loosely spreading or clasping achene, apex entire to mucronate, mucro 0.05–0.2 mm.
    Flowers: anthers 0.3–0.6 mm;
    stigmas 1–1.5 mm.
    Achenes dark-brown or black, sessile, oblongellipsoid to ellipsoid, 1.7–2.2 × 0.8–1.2 mm, apex obtuse, apiculate, surfaces puncticulate.