Carex prasina Wahlenberg (Q239)

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Carex prasina is a taxon with the rank species within the section Carex sect. Hymenochlaenae
Language Label Description Also known as
English
Carex prasina Wahlenberg
Carex prasina is a taxon with the rank species within the section Carex sect. Hymenochlaenae

    Statements

    taxon/id/Carex prasina Wahlenberg
    0 references
    Carex prasina Wahlenberg
    Carex prasina
    Wahlenberg
    FNA Editorial Committee. 2002. Flora of North America north of Mexico. Volume 23: Cyperaceae. Oxford University Press, New York.
    accepted
    carex vert poireau (French)
    drooping sedge (English)
    leek-green sedge (English)
    Drooping sedge (English)
    carex vert poireau (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.
    mesic deciduous forests
    streams
    seepage areas
    moist low ground
    springs
    Plants densely cespitose.
    Culms green or slightly suffused with maroon at base;
    flowering-stems 30–80 cm, usually longer than leaves at maturity, 0.8–1.1 mm thick, glabrous but finely scabrous on angles within inflorescence.
    Leaves: basal sheaths 2–3, green or tinged with maroon, bladeless, very short or absent, glabrous;
    blades flat, 2–5 mm wide, glabrous.
    Inflorescences: peduncles of lateral spikes slender, to 4 cm, mostly shorter and usually shorter than spikes, glabrous;
    peduncle of terminal spike less than 10 mm, minutely scabrous;
    proximal bracts equaling or exceeding inflorescences;
    sheaths less than 3 mm;
    blades 2–3 mm wide.
    Lateral spikes 2–4, 1 per node, each overlapping 1 above, uncrowded, nodding or drooping at maturity, pistillate with 25–50 perigynia, narrowly cylindric but broader and more densely flowered at distal end (flowers 1 mm apart) than proximal end (flowers 3.5 mm apart), 15–60 × 3.5–5.5 mm.
    Terminal spike staminate or gynecandrous with a few pistillate flowers distally, 25–40 × 2.5–4 mm.
    Pistillate scales white-hyaline with broad green midrib, ovateoblong, shorter than mature perigynia, apex cuspidate or with green awn about as long as body of scales, scabrous at tip, otherwise glabrous.
    Perigynia green to golden green at maturity, strongly 2-ribbed but otherwise veinless or nearly so, loosely enveloping achene, lanceovoid, 2.5–4 × 1–1.5 mm, membranous, base with short stipe, apex tapering to flattened, often bent beak, glabrous;
    beak 1–1.5 mm, with minute hyaline teeth.
    Achenes substipitate, 1.3–2 × 1–1.2 mm. 2n = 60.