Carex arctiformis Mackenzie in N. L. Britton et al. (Q178)

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Carex arctiformis is a taxon with the rank species within the section Carex sect. Glareosae
Language Label Description Also known as
English
Carex arctiformis Mackenzie in N. L. Britton et al.
Carex arctiformis is a taxon with the rank species within the section Carex sect. Glareosae

    Statements

    taxon/id/Carex arctiformis Mackenzie
    0 references
    Carex arctiformis Mackenzie
    Carex arctiformis
    Mackenzie
    FNA Editorial Committee. 2002. Flora of North America north of Mexico. Volume 23: Cyperaceae. Oxford University Press, New York.
    accepted
    carex arctiforme (French)
    polar 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/
    sphagnum bogs
    other wet places
    lowlands
    Plants densely cespitose, in large clumps;
    Culms erect, strict, stoutish (2.5–4 mm at base), (15–) 20–50 cm.
    Leaves: sheaths pale-brown abaxially, inner band hyaline, concave at summit;
    ligules slightly longer than wide, acutish;
    blades pale gray-green to bluish green, flat, 10–30 cm × 2–4 mm, subequal to shorter than culms.
    Inflorescences 1.5–3 (–4) cm × 8–14 mm;
    proximal bracts shorter than to exceeding spikes;
    distal bracts scalelike.
    Spikes 3–6, gynecandrous, closely approximate, proximal spikes only slightly separate, containing 15–30 perigynia, ovoid to short-oblong, 6–10 × 4–6 mm;
    terminal spike staminate for less than 1/2 of length, not or scarcely clavate.
    Pistillate scales dull green-white, often redbrown tinged, midvein green, margins white-hyaline, ovate, subequal to somewhat concealing perigynia, apex cuspidate to acute.
    Perigynia appressed-ascending, gray-green, sometimes dark-brown in age, obscurely many-veined faces, ovate-elliptic, 2.5–3 × 1.5 mm, widest near middle, membranous;
    beak nearly entire or few marginal teeth.