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quaking grass

any of several grasses of the genus Briza, having spikelets with slender, drooping stalks.
1590-1600 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for quaking grass

quaking grass

any grass of the genus Briza, of N temperate regions and South America, having delicate flower branches that shake in the wind
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Encyclopedia Article for quaking grass

any of about 20 species of slender annual or perennial grasses making up the genus Briza (family Poaceae), named for the spikelets of open flower clusters, borne on long stalks, that quiver in any air current

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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