Verwilderungen des Blauglockenbaums (Paulownia tomentosa [Thunb.] Steud.) im Rhein-Neckar-Gebiet

Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith