Carex deflexa Hornemann (Q57)

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Carex deflexa is a taxon with the rank species within the section Carex sect. Acrocystis
Language Label Description Also known as
English
Carex deflexa Hornemann
Carex deflexa is a taxon with the rank species within the section Carex sect. Acrocystis

    Statements

    taxon/id/Carex deflexa Hornemann
    0 references
    Carex deflexa Hornemann
    Carex deflexa
    Hornemann
    FNA Editorial Committee. 2002. Flora of North America north of Mexico. Volume 23: Cyperaceae. Oxford University Press, New York.
    accepted
    bent northern sedge (English)
    bent sedge (English)
    northern sedge (English)
    northern oak sedge (English)
    drooping sedge (English)
    carex déprimé (French)
    Plants usually loosely cespitose;
    rhizomes spreading to erect, purplish brown to reddish-brown, 0–10 mm, slender.
    Culms arching to spreading, 5–31 cm, smooth or scabrous distally;
    Leaf-blades pale green, shorter to longer than culms, 0.9–2.6 (–3.2) mm wide, herbaceous, glabrous abaxially, scabrous adaxially.
    Inflorescences with both staminate and pistillate spikes;
    peduncles of basal spikes slender, elongate, erect;
    peduncles of distal spikes 0.6–4 (–10) mm;
    proximal nonbasal bracts leaflike, equaling or exceeding inflorescences.
    Spikes: pistillate spikes 1–4 (basal spikes 0–2);
    cauline spikes overlapping, separated by less than 7 mm, with 4–15 perigynia;
    distal staminate spikes 3.1–11.3 × 0.7–2.7 mm.
    Scales: pistillate scales pale to dark reddish-brown, with narrow to broad white margins, ovate, 2–2.8 × 1–1.8 mm, shorter than perigynia, apex obutse, acute, or acuminate (cuspidate on some basal spikes);
    staminate scales ovate, 2.4–4 × 1–1.9 mm, apex acute to acuminate.
    Anthers 1.2–2.5 mm.
    Perigynia yellowish green to grayish green, veinless, globose to obovoid, 2.3–3.1 × 1–1.4 mm, as long as or longer than wide;
    beak often bent, pale green, occasionally with reddish-brown tinge, 0.4–0.8 mm, ciliate-serrulate, apical teeth 0.1–0.2 mm.
    Achenes brown, obovoid, obtusely trigonous in cross-section, 1.3–1.6 × 1–1.4 mm.