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(quaking grass), a genus of perennial and annual herbs of the family Gramineae. The inflorescence is a panicle; the Spike-lets are large and many-flowered. There are about 15 species distributed in Europe, Western Asia, North Africa, and South America. The plants were imported into North America. The USSR has five or six species, growing in meadows and forest glades and forest glades and amid shrubbery. The species B. media is found in the European USSR, and B. minor is found in the Caucasus. Both species serve as pasturage for livestock and are cultivated as ornamentals. B. maxima is also raised as an ornamental.