Modified TWINSPAN classification with 24 groups. Light blue color indicates groups belonging to Fagetalia sylvaticae (Groups 1–10), purple to Carpinetalia betuli (Groups 11–13), orange and red to Quercetalia ilicis (Groups 14–18), and green to Quercetalia pubescenti-petraea (Groups 19–24).

 
 
  Part of: Attorre F, Cambria VE, Agrillo E, Alessi N, Alfò M, De Sanctis M, Malatesta L, Sitzia T, Guarino R, Marcenò C, Massimi M, Spada F, Fanelli G (2020) Finite Mixture Model-based classification of a complex vegetation system. Vegetation Classification and Survey 1: 77-86. https://doi.org/10.3897/VCS/2020/48518