Carex ebenea Rydberg (Q328)

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Carex ebenea is a taxon with the rank species within the section Carex sect. Ovales
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Carex ebenea Rydberg
Carex ebenea is a taxon with the rank species within the section Carex sect. Ovales

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    taxon/id/Carex ebenea Rydberg
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    Carex ebenea Rydberg
    Carex ebenea
    Rydberg
    FNA Editorial Committee. 2002. Flora of North America north of Mexico. Volume 23: Cyperaceae. Oxford University Press, New York.
    accepted
    2700–3700 m
    Plants densely cespitose.
    Leaves: sheath adaxially white-hyaline, summits U-shaped to rounded, occasionally prolonged to 4 mm beyond collar;
    distal ligules 0.5–1.5 (–2) mm;
    blades 3–4 (–6) per fertile culm, 11–26 cm × 2.8–4 mm.
    Inflorescences dense, dark-brown, 1.5–3 cm × 14–20 mm;
    proximal internode 1.5–3 mm;
    2d internode 1–3.5 mm;
    proximal bracts scalelike, usually bristlelike, shorter than inflorescences.
    Spikes (4–) 6–12, aggregated, individually indistinct, ovoid, 9–15 × 4.5–6.5 mm, base and apex acute to rounded.
    Pistillate scales dark-brown, redbrown, or red-gold, sometimes with green to gold midstripe, ovate, 3.6–4.7 mm, shorter than and narrower or as wide as perigynia, margin gold-hyaline, to 0.3 mm wide, apex acuminate or acute.
    Perigynia appressed to ascending, green, gold, or brown, conspicuously usually 7–9-veined abaxially, conspicuously 0–5-veined adaxially, veins shorter than achene, lanceolate to ovate, planoconvex, to 5.3–7.1 × 1.1–1.5 mm, 0.4–0.5 mm thick, margin flat, including wing 0.15–0.3 mm wide, ciliate-serrulate at least on distal body;
    beak dark-brown, sometimes gold-hyaline at tip, cylindric, unwinged, ± entire for 0.9–1.5 mm, dorsal suture inconspicuous or with conspicuous white margin, distance from beak tip to achene 2.9–4 mm.