title: List of plants known as milk thistle
text: # List of plants known as milk thistle
  
  Milk thistle may refer to several plants:
  
  * Lactuca serriola
  * Silybum marianum
  * Various species of Sonchus, including:
     * Sonchus asper, rough milk thistle
     * Sonchus arvensis, field milk thistle
     * Sonchus oleraceus, common milk thistle
  