Carex pachystachya Chamisso ex Steudel (Q344)

From Canadian Flora Commons
Jump to navigation Jump to search
Carex pachystachya is a taxon with the rank species within the section Carex sect. Ovales
Language Label Description Also known as
English
Carex pachystachya Chamisso ex Steudel
Carex pachystachya is a taxon with the rank species within the section Carex sect. Ovales

    Statements

    taxon/id/Carex pachystachya Chamisso ex Steudel
    0 references
    Carex pachystachya Chamisso ex Steudel
    Carex pachystachya
    Chamisso ex Steudel
    FNA Editorial Committee. 2002. Flora of North America north of Mexico. Volume 23: Cyperaceae. Oxford University Press, New York.
    accepted
    carex à épis denses (French)
    thick-headed sedge (English)
    Chamisso's sedge (English)
    1 reference
    Klinkenberg, B. (ed.). 2010+. E-Flora BC: Electronic Atlas of the Plants of British Columbia. Lab. for Advanced Spatial Analysis, Department of Geography, University of British Columbia, Vancouver, B.C. http://www.eflora.bc.ca http://www.eflora.bc.ca/
    1 reference
    Packer, J.G. & A.J. Gould. 2017.Vascular Plants of Alberta. Part 1: Ferns, Fern Allies, Gymnospermes, and Monocots. University of Calgary Press, Calgary.
    1 reference
    Harms, V.L. 2006. Annotated catalogue of Saskatchewan vascular plants. http://www.biodiversity.sk.ca/Docs/AnnotatedCatalogueSKVascPlants2006.pdf
    1 reference
    Cody, W.J. 2000. Flora of the Yukon Territory. 2nd ed. National Research Press, Ottawa. 669 pp.
    Asia (Siberia)
    moist to wet
    moist to open meadows
    strands
    lakeshores
    forest edges
    Plants densely cespitose.
    Culms 15–120 cm.
    Leaves: sheath white hyaline or green-veined, summits usually U-shaped, often prolonged to 4 mm beyond collar;
    distal ligules 1–2.5 (–4) mm;
    blades 3–4 (–5) per fertile culm, 10–30 cm × 1.2–4.2 (–6.5) mm.
    Inflorescences dense or open, gold to dark-brown, 0.9–2.8 cm × 6.7–16.3 mm;
    proximal internode 0.7–4.5 (–9) mm;
    2d internode 0.7–4 mm;
    proximal bracts usually scalelike, sometimes bristlelike, shorter than inflorescences.
    Spikes 3–9 (–13), distinct or densely aggregated and individually indistinct, ovoid to broadly ovoid, 4.4–10 × 3.2–8.7 mm, appearing coarse-textured, base acute to rounded, apex rounded.
    Pistillate scales dark gold or redbrown to dark-brown, usually with pale or green midstripe, ovate, 2.2–3.7 (–4.2) mm, less than or equaling perigynia in length and width, margin white, 0–0.15 mm wide, apex obtuse to long-acute.
    Perigynia ascending to spreading, golden brown or coppery to blackish, conspicuously (0–) 2–9-veined abaxially, conspicuously 0–4 (–7) -veined adaxially, veins reaching top of achene, ovate to elliptic-ovate, planoconvex, 2.8–4.7 (–5.1) × 1.1–2.3 mm, 0.5–0.7 mm thick, margin flat, including wing 0.2–0.4 mm wide, sometimes filled with pithlike tissue near base, ciliate-serrulate at least on distal body, occasionally with white margin, with metallic sheen;
    beak redbrown to black at tip, sometimes white-hyaline, cylindric, unwinged, ± entire for 0.4–0.7 mm, suture usually inconspicuous, distance from beak tip to achene 1.5–2.2 (–2.8) mm.