The tree was growing and in bloom in a town outside of Buenos Aires. It was the beginning of spring there. We asked around but no one could name it for us. Hopefully someone in this group would know. It was stunning, never mind the Coca Cola sign... You can see the tree is quite large because it towers over the building in front of it. A close up of the flowers should help out, I hope.
Saltcedar, do you think it might maybe/possibly/ could be a Paulownia fortunei? The sort of square buds, the furry big calyx, the shape of the flowers all remind me of Paulownia. http://images.google.com/imgres?img...earchBox&rlz=1I7SUNA_en-GB&sa=N&start=20&um=1 http://toptropicals.com/pics/garden/m1/marcelo/Paulownia-fortunei-2.jpg