snake·weed /-ˌwid/
  Snake·weed n. Bot. (a) A kind of knotweed (Polygonum Bistorta). (b) The Virginia snakeroot. See Snakeroot.
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  snakeweed
       n : low-growing sticky subshrub of southwestern United States
           having narrow linear leaves on many slender branches and
           hundreds of tiny yellow flower heads [syn: rabbitweed,
           rabbit-weed, broom snakeweed, broom snakeroot, turpentine
           weed, Gutierrezia sarothrae]