Sambucus nigra L.
[Viburnaceae]
Varese (Lombardia), 315m
Humulus lupulus L.
[Cannabaceae]
Varese (Lombardia), 290m
Acer pseudoplatanus L.
[Sapindaceae]
Varese (Lombardia), 310m
Populus alba L.
[Salicaceae]
Varese (Lombardia), 290m
couldn't find any helpful keys, my guess is T. tergestinus, any other suggestions?