Carex longii Mackenzie (Q337)

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Carex longii is a taxon with the rank species within the section Carex sect. Ovales
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English
Carex longii Mackenzie
Carex longii is a taxon with the rank species within the section Carex sect. Ovales

    Statements

    taxon/id/Carex longii Mackenzie
    0 references
    Carex longii Mackenzie
    Carex longii
    Mackenzie
    FNA Editorial Committee. 2002. Flora of North America north of Mexico. Volume 23: Cyperaceae. Oxford University Press, New York.
    accepted
    carex de Long (French)
    Long's sedge (English)
    round-shouldered oval 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
    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
    Zinck, M. 1998. Roland's Flora of Nova Scotia. Nimber Publishing & Nova Scotia Museum. Halifax, N. S. 2 vols. 1297 pp.
    Mexico
    West Indies (Haiti)
    Bermuda
    Central America
    South America
    Pacific Islands (Hawaii)
    New Zealand
    sandy soils
    fields
    thickets
    ditches
    pond edges
    open woods
    Plants densely cespitose.
    Culms 30–120 (–140) cm;
    vegetative culms with few leaves clustered at apex.
    Leaves: sheaths adaxially conspicuously green-veined nearly to collar, with a narrow hyaline band or sharp Y-shaped hyaline region at collar;
    adaxially firm, summits U-shaped, finely papillose;
    distal ligules 1.8–4.4 (–6) mm;
    blades 2–4 (–6) per fertile culm, 8–30 cm × 2–4.5 mm.
    Inflorescences ± erect, usually open, green to brown, 1–4.5 (–6) cm × 5–14 mm;
    proximal internode 1–14 mm;
    2d internode 3–8 mm;
    proximal bracts scalelike, often with bristle tips.
    Spikes 3–10, distinct, ellipsoid to ovoid, 6–13 (–17) × 3.8–7 mm, base rounded or obtuse, apex obtuse to broadly acute;
    Pistillate scales white-hyaline, becoming pale silvery brown with age, with pale or green center, broadly lanceolate, 2.2–3.7 mm, shorter and narrower than perigynia, apex obtuse.
    Perigynia appressed-ascending, green to drab brown, conspicuously 5–many-veined on each face, obovate, flat except over achene, 3–4.6 × 1.6–2.6 (–2.8) mm, 0.4–0.5 mm thick, margin flat, including wing 0.5–0.8 mm wide;
    beak green to brown at tip, flat, broadly triangular, ciliate-serrulate, abaxial suture with conspicuous white hyaline margin, distance from beak tip to achene 1.4–2.2 mm.
    Achenes oblong, 1.3–1.7 × 0.7–1 mm, 0.4–0.5 mm thick, apiculum less than 0.4 mm;