Carex oligocarpa Willdenow (Q219)

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Carex oligocarpa is a taxon with the rank species within the section Carex sect. Griseae
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Carex oligocarpa Willdenow
Carex oligocarpa is a taxon with the rank species within the section Carex sect. Griseae

    Statements

    taxon/id/Carex oligocarpa Willdenow
    0 references
    Carex oligocarpa Willdenow
    Carex oligocarpa
    Willdenow
    FNA Editorial Committee. 2002. Flora of North America north of Mexico. Volume 23: Cyperaceae. Oxford University Press, New York.
    accepted
    carex à fruits clairsemés (French)
    eastern few-fruited sedge (English)
    richwoods sedge (English)
    few-fruited sedge (English)
    few-fruited gray sedge (English)
    Carex à fruits clairsemés (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.
    dry-mesic deciduous forests
    calcium-rich loams
    rocky slopes
    streams
    Plants densely cespitose;
    rhizome internodes 0.2–6 (–8) mm, 1.6–2.2 mm thick.
    Culms strongly purple-red to 3.2–8.8 cm high at base, 10–55 cm;
    longest vegetative shoots 0.88–1.4 times as long as longest culms.
    Leaves: sheaths glabrous;
    blades green, widest blades (1.8–) 2.4–4 (–4.6) mm wide, smooth abaxially.
    Inflorescences 0.46–0.94 (–0.99) of culm height;
    peduncles of lateral spikes barely scaberulous or smooth;
    peduncles of terminal spikes 2.6–113 mm, barely to much exceeding lateral spikes;
    proximal bract with sheath tight, abaxially glabrous, sheath front convex, elongated (0.8–) 1.1–4.0 mm beyond apex;
    ligules 0.8–4.1 (–6.4) mm;
    blade uniformly green;
    Spikes 3–5, widely separate or distal 2–3 spikes overlapping;
    lateral spikes pistillate with 2–8 (–10) perigynia, (4–) 9–19 × 3.8–7.5 (–9.2) mm, ratio of spike length (in mm) to flower number = 1.5–3.8;
    terminal spikes (7–) 14–32 (–45) × 1.1–2.3 (–3) mm.
    Pistillate scales 2.8–6.8 × 1.5–2.4 mm, margins whitish, entire, apex with awn 0.7–4.1 mm.
    Staminate scales 4–5 × 1.3–1.6 mm.
    Anthers 2.8–3.5 mm.
    Perigynia distichously imbricate, 51–67-veined, unwrinkled, narrowly obovoidellipsoid, obtusely triangular in cross-section, 3.7–4.7 × 1.6–1.9 (–2) mm, (1.8–) 2.2–2.6 times as long as wide, dull, base gradually tapered, abruptly contracted;
    beak straight, 0.4–1.2 mm.
    Achenes obovoid, 2.8–3.4 × 1.5–1.8 mm, tightly enveloped by perigynia;
    stipe straight, 0.3–0.6 mm;
    beak straight, (0.05–) 0.2–0.4 (–0.5) mm.