WordNet (r) 3.0 (2006):

Gutierrezia sarothrae
    n 1: 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, snakeweed, broom snakeweed, broom
         snakeroot, turpentine weed, Gutierrezia sarothrae]