needlegrass

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needlegrass

any of the grasses of the genus Stipa (family Poaceae), consisting of about 150 species with a sharply pointed grain and a long, threadlike awn (bristle). In some species, such as porcupine grass (Stipa spartea), the sharp grain may puncture the faces of grazing animals

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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