Difference between revisions of "Cyperus schweinitzii Torrey (Q3249)"
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Latest revision as of 12:37, 24 June 2022
Cyperus schweinitzii is a taxon with the rank species within the subgenus Cyperus subg. Juncellus
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Cyperus schweinitzii Torrey
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Cyperus schweinitzii is a taxon with the rank species within the subgenus Cyperus subg. Juncellus
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Statements
taxon/id/Cyperus schweinitzii Torrey
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Cyperus schweinitzii Torrey
Cyperus schweinitzii
Torrey
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-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-MB
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Manitoba Checklist, 2002
CA-ON
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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/
CA-QC
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Tardif, B., B. Tremblay, G. Jolicoeur & J. Labrecque. 2016. Les plantes vasculaires en situation précaire au Québec. CDPNQ, Gouv. Québec, MDDELCC, Direction de l'expertise en biodiversité, Québec, 420 p. http://www.cdpnq.gouv.qc.ca/pdf/plantesVasculairesWeb.pdf
CA-AB
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CA-MB
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CA-ON
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CA-QC
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CA-SK
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US-CO
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US-IL
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US-IA
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US-KY
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US-MA
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US-MI
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US-MN
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US-MO
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US-MT
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US-NJ
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US-NM
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US-NY
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US-OH
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US-OK
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US-PA
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US-SD
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US-TX
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US-UT
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US-WA
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US-WI
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US-WY
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Herbs, perennial, rhizomatous.
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Culms trigonous, (10–) 20–50 cm × (0.6–) 1–2 mm, glabrous or more often scabridulous, either in distal 1/2 or over entire length;
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basal sheaths, 1–3, light-brown, 1–4 cm, papery.
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Leaves flat to V-shaped, (2–) 20–35 cm × 2–6 mm, margins and keel minutely scabridulous;
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proximal leaves bladeless.
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Inflorescences: spikes ± umbellate to slenderly (infrequently broadly) ovoid, 10–25 × 7–16 mm;
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rays 3–5, 1.5–8 (–15) cm;
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bracts 3–7, erect (or declined at most 25–30° from vertical), (2.5–) 8–20 (–25) cm × (0.5–) 1.5–6 mm;
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Spikelets (1–) 5–10 (–20), oblong to linearoblong, quadrangular, 7–10 (–18) × (2.8–) 3.2–4 (–4.5) mm;
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floral scales deciduous, (1–) 5–10 (–14), spreading, laterally stramineous or dull whitish, sometimes also red-spotted, medially green, laterally 2–3-ribbed, medially 3-ribbed, broadly ovate to oblongovate, (2.3–) 2.8–3.2 × (2–) 2.4–3.2 mm, apex broadly rounded, often clear-erose, cusp 0.1–0.4 mm in proximal scales, 0.3–1 mm in distal scales.
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Flowers: anthers 0.8–1.4 mm;
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styles 0.1–0.3 mm;
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stigmas 1.5–3 mm.
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Achenes light to dark-brown or nearly black, broadly ellipsoid, infrequently obovoid, 2–2.4 × 0.9–1.4 mm, base cuneate to ± stipelike, apex obtuse to broadly rounded, surfaces papillose.
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dark-brown or nearly black
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