Cyperus houghtonii Torrey (Q3248)

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Cyperus houghtonii is a taxon with the rank species within the subgenus Cyperus subg. Juncellus
Language Label Description Also known as
English
Cyperus houghtonii Torrey
Cyperus houghtonii is a taxon with the rank species within the subgenus Cyperus subg. Juncellus

    Statements

    taxon/id/Cyperus houghtonii Torrey
    0 references
    Cyperus houghtonii Torrey
    Cyperus houghtonii
    FNA Editorial Committee. 2002. Flora of North America north of Mexico. Volume 23: Cyperaceae. Oxford University Press, New York.
    accepted
    souchet de Houghton (French)
    Houghton's flatsedge (English)
    Houghton's cyperus (English)
    Houghton's umbrella sedge (English)
    Houghton’s flatsedge (English)
    1 reference
    Newmaster, S.G. & S. Ragupathy. 2005. Flora Ontario - Integrated Botanical Information System (FOIBIS), Phase I. University of Guelph, Canada. http://www.uoguelph.ca/foibis http://www.uoguelph.ca/foibis/
    1 reference
    Marie-Victorin, Fr. 1995. Flore laurentienne. 3e éd. Mise à jour et annotée par L. Brouillet, S.G. Hay, I. Goulet, M. Blondeau, J. Cayouette et J. Labrecque. Gaétan Morin éditeur. 1093 pp.
    riverbanks
    sand bars
    lakeshores
    sand dunes
    sandy openings
    jack pines
    Herbs, perennial, cespitose, bases cormose, rhizomatous.
    Culms trigonous, 5–50 cm × 0.5–1.5 mm, glabrous.
    Leaves V-shaped, 12–30 cm × 1–6 mm.
    Inflorescences: spikes ± globose to broadly ovoid, 8–20 mm wide;
    rachis 2–5 mm, glabrous;
    bracts 3–8, weakly ascending, flat, 3–20 cm × 1–3.5 mm;
    Spikelets 3–18, compressed, ovoid to oblong-lanceoloid, 4–15 × 2.6–3.4 mm;
    floral scales deciduous, 3–18, laterally stramineous to reddish-brown, laterally 3–4-ribbed, broadly ovate, 1.8–2.5 × 1.3–1.6 mm, apex with mucro 0.1–0.2 mm.
    Flowers: anthers 0.5–0.7 mm;
    styles 0.4–0.6 mm;
    stigmas 1–1.5 mm.
    Achenes dark-brown, sessile, broadly ellipsoid, 1.5–2 × 1–1.5 mm, apex obtuse, apiculate, surface glabrous, puncticulate, or papillose.
    2n = 168, 170, 172.