Flowering Plants (Angiosperms)
   Dicotyledons (flowering plants with two seed-leaves)
      Compositae (Asteraceae)
         Thistle-type – Arctium, Artemisia, Aster, Calina, Cardus, Centaurea, Cirsium, Conyza, Echinops, Eupatorium, Filago, Gnaphalium, Homogyne,  Inula, Onopordum, Petasites, Saussurea, Senecio, Serratula, Silybum, Xanthium