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Wednesday, August 31, 2016

Cyperus laevigatus, سعد ناعم, smooth flatsedge

Cyperus laevigatus L.
Family: Cyperaceae

Synonyms: Acorellus laevigatus (L.) Palla, Acorellus pallae Kneuck., Chlorocyperus junciformis (Desf.) Rikli, Chlorocyperus laevigatus (L.) Palla, Cyperus careyi Britton, Cyperus cossyrensis Tineo ex Guss., Cyperus incurvus Spreng. ex Kunth, Cyperus juncellus Dinter, Cyperus junciformis Desf., Cyperus laevigatus var. albidus Vahl, Cyperus laevigatus subsp. albidus (Vahl) Maire & Weiller, Cyperus laevigatus f. atratus Peter ex Kük., Cyperus laevigatus var. caespitosus C.B.Clarke, Cyperus laevigatus subsp. laevigatus, Cyperus laevigatus var. laevigatus, Cyperus laevigatus f. macra C.B.Clarke, Cyperus laevigatus var. pallae (Kneuck.) Kük., Cyperus laevigatus var. pictus Boeckeler, Cyperus laevigatus var. ramlehensis Sickenb., Cyperus laevigatus f. reptans (Boeckeler) C.B.Clarke, Cyperus laevigatus var. reptans (Boeckeler) Kük., Cyperus laevigatus var. subaphyllus (Boeckeler ex Schinz) Kük., Cyperus laevigatus var. viridulus (Boeckeler) C.B.Clarke, Cyperus laevigatus var. viridulus (Boeck.) Kük., Cyperus laevigatus f. viridulus (Boeck.) C.B. Clarke, Cyperus lateralis Forssk., Cyperus leucostachys Link, Cyperus maritimus Gouan ex Spreng., Cyperus monostachyos Link, Cyperus mucronatus L., Cyperus pleuranthus Nees, Cyperus reptans Boeckeler, Cyperus rivularis Steud., Cyperus roxburghianus C.Presl, Cyperus roxburghii A.Dietr., Cyperus subaphyllus Boeckeler ex Schinz, Cyperus submonastichyus Steud. & Jard., Cyperus teretifolius A.Rich., Cyperus uliginosus Thouars ex Link, Cyperus viridulus Boeckeler, Juncellus laevigatus (L.) C.B.Clarke, Juncellus laevigatus var. junciformis C.B.Clarke, Juncellus lateralis (Forssk.) M.R.Almeida, Pycreus laevigatus (L.) Nees, Pycreus lateralis (Forssk.) Nees,

English: smooth flatsedge
Arabic: سعد ناعم

Description: Perennial rhizomatous herbs, 30-50cm tall. Culms single, trigonous. Leaves reduced, sheath reddish. Spikes 5-15 mm long, 5-15 digitately arranged in lateral heads; rays absent or 1-2mm long.  Bracts 1 or 2, erect, appearing as continuation of culm. Spikelets 2–7, whitish green to reddish, compressed-turgid, oblong-lanceolate  4-7 × 2-3mm. Glumes 10-15 whitish with red speckles, 1-3 ribbed. Anthers 2. Stigmas 3. Achenes gray, glossy, oblong-ellipsoid , base cuneate, apex apiculate, surfaces finely reticulate.
Habitat & location: Occasional in muddy soils.

Uses: For cold, cough, deep cuts, boils, skin ulcers, skin and venereal diseases.

Published articles of Cyperus laevigatus
1. Assessment of unmodified wetland bio-waste: Shoots of Cyperus laevigatus, for cadmium adsorption from aqueous solutions
By: Ammari, Tarek G.; Al-Labadi, Ibrahim; Tahboub, Alaedeen; et al.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION  Volume: 95   Pages: 77-85   Published: MAY 2015

2. Nitrogen nutrition of Cyperus laevigatus and Phormium tenax: Effects of ammonium versus nitrate on growth, nitrate reductase activity and N uptake kinetics
By: Piwpuan, Narumol; Zhai, Xu; Brix, Hans
AQUATIC BOTANY  Volume: 106   Pages: 42-51   Published: APR 2013

3. Biosorption of Cd+2 and Pb+2 on Cyperus laevigatus: application of factorial design analysis
By: Al-Qahtani, Khairia M.
LIFE SCIENCE JOURNAL-ACTA ZHENGZHOU UNIVERSITY OVERSEAS EDITION  Volume: 9   Issue: 4   Pages: 860-868   Published: 2012

4. Water relations and chemical composition of Sporobolus spicatus and Cyperus laevigatus under varying levels of salinity
By: Onkware, Augustino Osoro
Indian Journal of Plant Physiology  Volume: 2   Issue: 3   Pages: 193-198   Published: July-Sept., 1997

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