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(sedge), a genus of plants of the family Cyperaceae. The plants are perennial herbs with creeping or shortened rhizomes. Sedges form loose or dense mats or, sometimes, hillocks. The leaves are usually sheathed and linear and have rough, sharp margins and a narrow ligule. The plants, as a rule, are monoecious. The unisexual flowers are generally in multiflorous spike-lets that are gathered into inflorescences; rarely are the flowers solitary. There is no perianth. The staminate flowers have three stamens in the axils of the glumes; the pistillate flowers have an ovary enclosed in a closed bracteole known as the perigynium.

There are about 1,500 species of Carex (according to other data, up to 2,000), distributed primarily in temperate and cold zones. In the USSR, there are more than 400 species; they are encountered everywhere, but mainly in the forest zone, the tundra, the forest tundra, and the alpine and subalpine zones of the mountains. The plants usually grow in damp places: in marshes and marshy meadows and along bodies of water. They often make up the principal mass of the plant cover. Many species of Carex are eaten before flowering by grazing livestock; less frequently, they are used as hay or silage.

The graceful sedge (Carex acuta; formerly C. gracilis), which is widespread in the forest zone, is used as a forage plant in pastures and for hay. C. supina is found in pastures of the European USSR, in the Caucasus, in Western Siberia, and in Middle Asia. C. physodes is a typical plant of sandy deserts, and C. pachystylis is characteristic of semideserts. Both plants serve as the principal winter-spring fodder for sheep in Middle Asia. The bottle sedge (C. rostrata) and C. rotundata are valuable subnivean and early-spring fodders for reindeer. Steppe and high-mountain species are good pasture plants. The rhizomes and stems of Carex are sometimes used to make floor mats, mats for covering hotbeds, sackcloth, cord, coarse varieties of paper, and furniture stuffing. Species with long rhizomes, such as the sand sedge (C. arenaria), C. colchica, and C. physodes, are used to prevent sand erosion. Some species are used in the manufacture of the medicinal preparation brevicollin, which is used in obstetrics. A number of species are cultivated as ornamentals.


Krechetovich, V. I. “Osoka—Carex L.” In Flora SSSR, vol. 3. Leningrad, 1935.
Egorova, T. V. Osoki SSSR: Vidy podroda Vignea. Moscow-Leningrad, 1966.
Kükenthal, G. Cyperaceae—Caricoideae. Leipzig, 1909. (Das Pflanzenreich, fasc. 38. Edited by A. Engler.)


References in periodicals archive ?
Carex qinghaiensis was one of the most abundant browse species in autumn and winter pasture and the proportion in the diet of yak remained relatively constant.
Shared Jeff Swain, VP of Marketing, Carex Health Brands, "Over the years, we have constantly strived to serve our customers with quality products and excellent customer service.
It comes in a good selection of colours from the beautiful lush green of Carex evergreen, through to yellow colours of Bowles' golden sedge or the red fiery Carex testacea.
Similarly, cyclamen look great bunched together as their colours are so dazzling and in other pots I have gone for more muted colour schemes, such as the Carex 'Everest' mixed with Skimmia 'white dwarf '.
4,5) It has already been used by CAREX Canada to develop estimates of the numbers of workers exposed to various carcinogens, by identifying workplaces and occupations with potential exposure, and exposure at levels of concern by province/territory, industry, and occupation.
Manchester-based PZ Cussons fought back against rivals with new ranges, such as its longer lasting Carex "Protect+ Plus" handwash, as it said all three brands performed well over the six months to November 30.
Try Carex comans Frosted Curls with its silvery green leaves or Festuca glauca Elijah Blue.
1968) was used to determine the following: Carex gynandra Schwein Carex lurida Wahlenberg, Carex scoparia Schkuhr ex Wind.
Strong trading in the UK boosted by the launch of Carex Protect Plus handwash helped push revenues up by 10.
According to TWINSPAN analysis, the data set was split into two major groups: (1) xerophytic to mesophytic communities of Sesleria caerulea group (128 releves in total); and (2) mesophytic communities with Molinia caerulea or Carex hostiana as dominant species (53 releves in total).