This should be easy, and the tree is pretty

[Levantine]

Hi,

 

It is a quite common tree with an obvious aesthetic value. Its growth in my area* is as if composed of two 'floors': one consists of thin stems growing in close proximity to each other (a feet or few feet distance) and reaching a height of 7-10 ft (/ 2-3 m), and the other is a taller tree with a crown rising at almost exactly double the former height (about 6 meters). 

 

One specific thing: the top of the canopy can be quite flat and nearly horizontal in places, for (perhaps due to lack of water) there the leafs are droopy , and the stem on which they hang on has also drooped to an almost horizontal level.

 

NB: 1. No cuttings have been made for the purpose of making this post. 2. I can't provide a pic of a whole tree because my camera is on repair.

(*) SE Europe.

 

Edited September 28, 2017 by Levantine

[jmx]

possibly Ailanthus altissima, or another Ailanthus 

[daltontrees]

Ailanthus altissima, tree of heaven. An absolute weed in Basel at the southern tip of Germany.

[Levantine]

Yes, that's it. Thanks.