Carex haydeniana Olney in S. Watson (Q335)
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Carex haydeniana is a taxon with the rank species within the section Carex sect. Ovales
| Language | Label | Description | Also known as |
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| English |
Carex haydeniana Olney in S. Watson
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Carex haydeniana is a taxon with the rank species within the section Carex sect. Ovales
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Statements
taxon/id/Carex haydeniana Olney
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Carex haydeniana Olney
Carex haydeniana
Olney
FNA Editorial Committee. 2002. Flora of North America north of Mexico. Volume 23: Cyperaceae. Oxford University Press, New York.
accepted
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CA-BC
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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/
CA-AB
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Packer, J.G. & A.J. Gould. 2017.Vascular Plants of Alberta. Part 1: Ferns, Fern Allies, Gymnospermes, and Monocots. University of Calgary Press, Calgary.
CA-AB
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CA-BC
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US-CA
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US-CO
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US-ID
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US-MT
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US-OR
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US-UT
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US-WA
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US-WY
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1700–4300 m
1,700 meter
4,300 meter
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Plants densely cespitose.
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Culms 9–30 (–40) cm.
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Leaves: sheaths adaxially white-hyaline, sometimes cross-corrugate adaxially, summits usually U-shaped, sometimes prolonged to 3 mm beyond collar;
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distal ligules 0.3–2 mm;
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blades 3–4 (–5) per fertile culm, 3–16 cm × 1.5–4 mm.
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Inflorescences dense, dark-brown, green and brown, or gold, 1.1–2.1 cm × 13–18 mm;
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proximal internode 1–2.5 (–3.4) mm;
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2d internode 0.5–2 mm;
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proximal bracts scalelike, shorter than inflorescences.
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Spikes 5–7 (–9), aggregated, individually indistinct broadly ovoid, 6.5–10 × 4.5–8 mm, base and apex usually rounded.
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Pistillate scales reddish or coppery to dark-brown, sometimes with whitish or pale gold midstripe, narrowly ovate to ovate, 3–4.8 mm, shorter and narrower than perigynia, apex acute to obtuse.
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Perigynia ascending to ascending-spreading, light-brown to coppery or dark-brown, conspicuously 0–3 (–8) -veined adaxially, lanceovate to broadly ovate, flat except over achene, 4–6.5 × 1.5–2.6 mm, 0.3–0.5 mm thick, margin flat, including wing 0.3–0.6 (–0.8) mm wide, ciliate-serrulate at least on distal body;
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beak dark-brown to black, white-hyaline at tip, cylindric, unwinged, at least 1 mm, ± entire for 0.3–0.6 mm, abaxial suture inconspicuous or with conspicuous white margin, distance from beak tip to achene (2.3–) 2.6–3.8 mm.
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cross-corrugate
sometimes; adaxially
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light-brown
coppery or dark-brown
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0-3(-8)-veined
conspicuously; adaxially
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with conspicuous white margin
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