Carex deweyana Schweinitz (Q151)

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Carex deweyana is a taxon with the rank species within the section Carex sect. Deweyanae
Language Label Description Also known as
English
Carex deweyana Schweinitz
Carex deweyana is a taxon with the rank species within the section Carex sect. Deweyanae

    Statements

    taxon/id/Carex deweyana Schweinitz
    0 references
    Carex deweyana Schweinitz
    Carex deweyana
    Schweinitz
    FNA Editorial Committee. 2002. Flora of North America north of Mexico. Volume 23: Cyperaceae. Oxford University Press, New York.
    accepted
    Dewey's sedge (English)
    short-scale sedge (English)
    carex de Dewey (French)
    Plants densely cespitose.
    Culms 14–89 (–101) cm × 0.3–1.1 mm wide, smooth or papillose.
    Leaves: ligule on distal leaf 0.9–2.2 mm, as long as wide;
    blades 0.6–4.2 mm wide, widest blade 2.4–4.2 mm wide.
    Inflorescences 12–56 mm;
    proximal internode 6–34 mm;
    proximal bracts 6–49 mm, awn 7–46 mm;
    spikes (2–) 3–5, longest ones 2–5, usually gynecandrous;
    proximal spikes with 1–2 staminate and (5–) 7–12 pistillate flowers, 5.2–11 (–13) × (2.1–) 3.7–6.9 mm;
    terminal spikes usually with 1–3 (–5) staminate and (7–) 9–13 (–16) pistillate flowers, 6.8–13 × 3.8–8.1 mm.
    Pistillate scales with colorless or stramineous margins, 3–4.5 × 1.6–2.2 mm, body 2.8–4.2 mm, apex acuminate to short-awned, awn to 0.6 mm.
    Staminate scales with colorless or stramineous margins, 3–5.3 × 1.2–1.6 mm, apex acute to acuminate or occasionally short-awned to 0.3 mm.
    Anthers (1.8–) 1.9–2.2 mm.
    Perigynia erect to ascending, green to pale-brown, 0–5-veined abaxially, usually veinless adaxially, narrowly ovate, 4–4.9 (–5.2) × 1.3–1.5 (–1.6) mm, 2.9–3.8 times as long as wide, apex gradually tapering;
    beak 1.4–2.1 mm, 0.32–0.4 times as long as perigynia, margins serrulate, apex entire or bidentulate, teeth to 0.2 mm, 0–0.05 times as long as perigynia.
    Stigmas 1.9–2 mm.
    Achenes 1.8–2.2 × 1.2–1.5 mm wide, 1.3–1.8 times as long as wide.