Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun horse_thistle

1 sense of horse thistle

Sense 1
prickly lettuce, horse thistle, Lactuca serriola, Lactuca scariola -- (European annual wild lettuce having prickly stems; a troublesome weed in parts of United States)
       => compass plant, compass flower -- (any of several plants having leaves so arranged on the axis as to indicate the cardinal points of the compass)