Cyperus

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The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Cyperus

 

(galingale), a genus of perennial and, less commonly, biennial and annual herbs of the family Cyperaceae (sedge). The bisexual flowers have no perianth and are in flattened linear spikelets under two-ranked scales. The spikelets are gathered in a common umbel or head; there are long bracteal leaves at the base of the inflorescence. The fruit—an achene—is usually three-angled.

There are about 500 species, distributed in tropical, subtropical, and—rarely—temperate zones. The USSR has 14 species, which grow predominantly in the south in damp and marshy places. The species C. fuscus is widely distributed in the USSR. C. rotundus, which grows in the Caucasus and Middle Asia, is a long-rhizomed pernicious weed of cotton and other irrigated crops; the tuberous formations on its rhizomes are used as spice. The chufa (C. esculentus) is sometimes cultivated for food and animal feed. The rhizome of C. longus contains a violet-scented essential oil that is used in Western Europe in the production of perfumes and cosmetics. A particularly well-known species is the papyrus (C. papyrus). The umbrella plant (C. alternifolius) is a common houseplant and greenhouse plant.

T. V. EGOROVA

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
The results showed that more endophytic fungi were found in elephant grass (Pennisetum purpureum), in cyperus (Cyperus rotundus) and alang-alang (Imperata cylindrica).
Fadwa et al., "Pharmacological, antioxidant, genotoxic studies and modulation of rat splenocyte functions by Cyperus rotundus extracts," BMC Complementary and Alternative Medicine, vol.
Preparation of Chloroform Extracts of Cyperus Rotundus and Phytochemical Tests
A total of twenty five frequently occurring weeds were sampled out of which seventeen Viz., Convolvulus arvensis, Polygonum plebejum, Cenchrus setigerus, Phalaris minor, Coronopus didymus, Euphorbia prostrata, Cynodon dactylon, Rumex dentatus, Euphorbia spp., Cyperus rotundus, Dactyloctenium aegyptium, Launaea nudicaulis, Ageratum conyzoides, Avena fatua, Cnicus arvensis, Chenopodium murale, and Malva neglecta were sampled from wheat fields, whereas eight species of weeds namely Solanum nigrum, Cyperus rotundus, Euphorbia hirta, Malvestrum coromandelianum, Conyza ambigua, Convolvulus arvensis, Poa annua and Oxalis corniculata were sampled for invertebrate fauna from sugarcane fields.
* Cyperus rotundus. Cyperus rotundus extract significantly decreased the formation of AGEs and showed significant effect on preventing protein oxidation believed to form during the glycoxidation process.
A la fecha solo se han detectado seis hospederas silvestres: Sorghum halepense, Cenchrus ciliaris, Cynodon dactylon, Chloris gayana, Echinochloa colonum (poaceas) y Cyperus rotundus (ciperacea) y dos cultivadas: S.