Yes.
Willow and Alder.
Elm trees are deciduous
Chestnut trees Chestnut trees
Elm trees are endangerd
No, animal eats elm trees but several other animals live inside elm trees.
No.
No.
No, an aspen tree is part of the populus genus. Only the trees from the birch genus (Betulus) produced catkins as the male pollinating adaptation The aspen Populus tremula does produce catkins in late winter and early spring. They are long and grey.
Elm is the common name of the genus of trees called Ulmus
Yes the 'elm' is a deciduous species.
There is no way to stop the catkins from falling on pecan trees. I have been trying to find this out for a while now and finally just called some local tree service places. They informed me that there is no way to stop them when dealing with pecan trees.