Cyperus diandrus Torrey (Q3265)

From Canadian Flora Commons
Revision as of 08:05, 23 June 2022 by WikibaseAdmin (talk | contribs) (‎Changed an Item)
Jump to navigation Jump to search
Cyperus diandrus is a taxon with the rank species within the subgenus Cyperus subg. Pycreus
Language Label Description Also known as
English
Cyperus diandrus Torrey
Cyperus diandrus is a taxon with the rank species within the subgenus Cyperus subg. Pycreus

    Statements

    taxon/id/Cyperus diandrus Torrey
    0 references
    Cyperus diandrus Torrey
    Cyperus diandrus
    FNA Editorial Committee. 2002. Flora of North America north of Mexico. Volume 23: Cyperaceae. Oxford University Press, New York.
    accepted
    souchet diandre (French)
    low umbrella flatsedge (English)
    umbrella flatsedge (English)
    low cyperus (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.
    1 reference
    Hinds, H.R. 2000. Flora of New Brunswick : a manual for the identification of the vascular plants of New Brunswick. 2nd edition. Biology Department, University of New Brunswick, Fredericton. 699 pp.
    1 reference
    Hill, N.M. 2001. Cyperus diandrus: Another Nova Scotian rare plant from a rare lake type. Rhodora 103: 332-334 http://www.biodiversitylibrary.org/item/102741#page/342/mode/1up
    emergent shorelines
    brackish areas
    Herbs, annual, cespitose, with fibrous-roots.
    Culms trigonous, 4–25 (–35) cm, glabrous.
    Leaves flat, 5–20 cm × 1.5–3 mm.
    Inflorescences: heads ± digitate, 12–22 mm diam.;
    rays 3–6, 1–6 cm;
    bracts 1–4, ± horizontal, flat, 1.5–15 cm × 1.5–3 mm.
    Spikelets 6–12, oblong-lanceoloid, compressed, 5–10 × 2.8–3.2 mm;
    floral scales 8–28, closely imbricate, stramineous to light-brown or clear (marginal band bright red, spikelet thus appearing dark-margined), laterally ribless, oblong to ovate, 2.5–3 × 1.6–1.9 mm.
    Flowers: stamens 2 (–3);
    anthers 0.3 mm, connective apex reddish, subulate, 0.1–0.2 mm;
    styles 0.3–0.5 mm;
    stigmas 2.2–3.1 mm.
    Achenes brown, network of ridges forming isodiametric or square cells, sessile or stipitate, obovoid to ovoid, 1–1.2 × 0.5–0.6 mm, stipe, if present, 0.1 mm, apex obtuse, apiculate, surfaces minutely punctate.