Carex infirminervia Naczi (Q154)

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Carex infirminervia is a taxon with the rank species within the section Carex sect. Deweyanae
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English
Carex infirminervia Naczi
Carex infirminervia is a taxon with the rank species within the section Carex sect. Deweyanae

    Statements

    taxon/id/Carex infirminervia Naczi
    0 references
    Carex infirminervia Naczi
    Carex infirminervia
    FNA Editorial Committee. 2002. Flora of North America north of Mexico. Volume 23: Cyperaceae. Oxford University Press, New York.
    accepted
    carex à nervures faibles (French)
    weak-nerved 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.
    mesic to dry-mesic deciduous
    deciduous-coniferous forests
    slopes
    streams
    open habitats
    grassy slopes
    Plants densely cespitose.
    Culms 10–83 cm × 0.8–1.3 mm, papillose at mid height.
    Leaves: ligule of distal leaf (2.1–) 2.6–6.8 mm;
    blades 1.4–3.8 mm wide, widest blade 2.3–3.8 mm wide.
    Inflorescences 27–68 mm, proximalmost 2 spikes overalapping or separate;
    proximal internode 7.3–28 mm;
    proximal bract 11–61 mm;
    spikes (4–) 5–6 (–7), usually gynecandrous, sometimes pistillate or staminate;
    proximal spike usually with 1–3 staminate and 11–22 pistillate flowers, longest per plant with 12–22 pistillate flowers, 9.7–18 × 3.7–6.6 mm, longest per plant 12–18 mm;
    terminal spike usually with 1–3 staminate and 14–21 pistillate flowers, sessile or on peduncle to 1.8 mm, 9.6–16 × 3.4–6.2 mm.
    Pistillate scales whitish to castaneous, with green midrib, 2.9–4.4 mm, body 2.9–3.8 × 1.4–1.8 mm, apex acuminate to short-awned, awn to 1.1 mm.
    Staminate scales with whitish to castaneous margins, 3.1–4.3 × 1–1.5 mm, apex acute to short-awned.
    Anthers 1.3–1.8 mm.
    Perigynia erect to appressed-erect, green to brown, veinless or weakly 1–3 (–4) -veined abaxially, veinless adaxially, narrowly lanceolate in outline, 3.7–5.3 × 1.1–1.3 (–1.4) mm, 3.2–3.9 (–4.2) times as long as wide, apex gradually tapering;
    beak 1.5–2.2 mm, 39–49% of total perigynium, margins denticulate for distal 49–60% of length of perigynium, apex entire or bidentulate, teeth 0–0.2 (–0.4) mm, 0–8% of length of perigynium.
    Stigmas 1.8–2.5 mm.
    Achenes 1.6–2.2 × 1.1–1.3 mm, 1.5–1.8 times as long as wide.