Carex pachystachya Chamisso ex Steudel (Q344)
Carex pachystachya is a taxon with the rank species within the section Carex sect. Ovales
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English |
Carex pachystachya Chamisso ex Steudel
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Carex pachystachya is a taxon with the rank species within the section Carex sect. Ovales
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Statements
taxon/id/Carex pachystachya Chamisso ex Steudel
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Carex pachystachya Chamisso ex Steudel
Carex pachystachya
Chamisso ex Steudel
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-SK
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Harms, V.L. 2006. Annotated catalogue of Saskatchewan vascular plants. http://www.biodiversity.sk.ca/Docs/AnnotatedCatalogueSKVascPlants2006.pdf
CA-YT
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Cody, W.J. 2000. Flora of the Yukon Territory. 2nd ed. National Research Press, Ottawa. 669 pp.
CA-AB
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CA-BC
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CA-SK
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CA-YT
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US-AK
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US-CA
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US-CO
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Plants densely cespitose.
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Leaves: sheath white hyaline or green-veined, summits usually U-shaped, often prolonged to 4 mm beyond collar;
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distal ligules 1–2.5 (–4) mm;
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blades 3–4 (–5) per fertile culm, 10–30 cm × 1.2–4.2 (–6.5) mm.
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Inflorescences dense or open, gold to dark-brown, 0.9–2.8 cm × 6.7–16.3 mm;
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proximal internode 0.7–4.5 (–9) mm;
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2d internode 0.7–4 mm;
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proximal bracts usually scalelike, sometimes bristlelike, shorter than inflorescences.
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Spikes 3–9 (–13), distinct or densely aggregated and individually indistinct, ovoid to broadly ovoid, 4.4–10 × 3.2–8.7 mm, appearing coarse-textured, base acute to rounded, apex rounded.
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Pistillate scales dark gold or redbrown to dark-brown, usually with pale or green midstripe, ovate, 2.2–3.7 (–4.2) mm, less than or equaling perigynia in length and width, margin white, 0–0.15 mm wide, apex obtuse to long-acute.
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Perigynia ascending to spreading, golden brown or coppery to blackish, conspicuously (0–) 2–9-veined abaxially, conspicuously 0–4 (–7) -veined adaxially, veins reaching top of achene, ovate to elliptic-ovate, planoconvex, 2.8–4.7 (–5.1) × 1.1–2.3 mm, 0.5–0.7 mm thick, margin flat, including wing 0.2–0.4 mm wide, sometimes filled with pithlike tissue near base, ciliate-serrulate at least on distal body, occasionally with white margin, with metallic sheen;
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beak redbrown to black at tip, sometimes white-hyaline, cylindric, unwinged, ± entire for 0.4–0.7 mm, suture usually inconspicuous, distance from beak tip to achene 1.5–2.2 (–2.8) mm.
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(0-)2-9-veined
conspicuously; abaxially
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0-4(-7)-veined
conspicuously; adaxially
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