1. Knautia (Witwenblume / Knautie)
  2. Knautia arvensis (Acker-Witwenblume)
  3. Knautia arvensis 'Rachel' (Witwenblume)
  4. Knautia dipsacifolia (Wald-Witwenblume)
  5. Knautia macedonica (Mazedonische Witwenblume)
  6. Knautia macedonica 'Mars Midget' (Witwenblume)
  7. Knautia purpurea (Purpur-Witwenblume)
  8. Knautia sylvatica (Wald-Witwenblume)