Cyperus diandrus Torrey (Q3265)
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Cyperus diandrus is a taxon with the rank species within the subgenus Cyperus subg. Pycreus
| Language | Label | Description | Also known as |
|---|---|---|---|
| English |
Cyperus diandrus Torrey
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Cyperus diandrus is a taxon with the rank species within the subgenus Cyperus subg. Pycreus
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Statements
taxon/id/Cyperus diandrus Torrey
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Cyperus diandrus Torrey
Cyperus diandrus
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-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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Marie-Victorin, Fr. 1995. Flore laurentienne. 3e éd. Mise à jour et annotée par L. Brouillet, S.G. Hay, I. Goulet, M. Blondeau, J. Cayouette et J. Labrecque. Gaétan Morin éditeur. 1093 pp.
CA-NB
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Hinds, H.R. 2000. Flora of New Brunswick : a manual for the identification of the vascular plants of New Brunswick. 2nd edition. Biology Department, University of New Brunswick, Fredericton. 699 pp.
CA-NS
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Hill, N.M. 2001. Cyperus diandrus: Another Nova Scotian rare plant from a rare lake type. Rhodora 103: 332-334 http://www.biodiversitylibrary.org/item/102741#page/342/mode/1up
CA-NB
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CA-NS
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CA-ON
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CA-QC
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US-CT
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US-DE
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US-IL
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US-IN
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US-IA
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US-ME
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US-MD
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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-NE
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US-NH
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US-NJ
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US-NY
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US-PA
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US-RI
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US-VT
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US-VA
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Herbs, annual, cespitose, with fibrous-roots.
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Culms trigonous, 4–25 (–35) cm, glabrous.
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Leaves flat, 5–20 cm × 1.5–3 mm.
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Inflorescences: heads ± digitate, 12–22 mm diam.;
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bracts 1–4, ± horizontal, flat, 1.5–15 cm × 1.5–3 mm.
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Spikelets 6–12, oblong-lanceoloid, compressed, 5–10 × 2.8–3.2 mm;
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floral scales 8–28, closely imbricate, stramineous to light-brown or clear (marginal band bright red, spikelet thus appearing dark-margined), laterally ribless, oblong to ovate, 2.5–3 × 1.6–1.9 mm.
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Flowers: stamens 2 (–3);
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anthers 0.3 mm, connective apex reddish, subulate, 0.1–0.2 mm;
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styles 0.3–0.5 mm;
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stigmas 2.2–3.1 mm.
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Achenes brown, network of ridges forming isodiametric or square cells, sessile or stipitate, obovoid to ovoid, 1–1.2 × 0.5–0.6 mm, stipe, if present, 0.1 mm, apex obtuse, apiculate, surfaces minutely punctate.
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