white thistle

1 definition found

white thistle - WordNet (r) 2.1 (2005) :

  white thistle
      n 1: any plant of the genus Argemone having large white or
           yellow flowers and prickly leaves and stems and pods;
           chiefly of tropical America [syn: prickly poppy,
           argemone, white thistle, devil's fig]
      2: spiny shrub with silvery-scurfy foliage of alkaline plains of
         southwestern United States and Mexico [syn: quail bush,
         quail brush, white thistle, Atriplex lentiformis]