(Science: botany) Any plant which habitually breaks away from its roots in the autumn, and is driven by the wind, as a light, rolling mass, over the fields and prairies; as witch grass, wild indigo, Amarantus albus, etc.
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Where is the photo? :? Why I can't see that? :( But, since someone mentioned about "dead grass" it brings my mind to TUMBLEWEED, which one of its well-known gebus is Salsola http://z.about.com/d/phoenix/1/0/r/K/tumbleweeds01.jpg For your note, it is NOT seeweed, ...
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