Fraxinus americana.
The name would be Fraxinus americana.
The scientific name is Acer negundo. I found this on http://www.wildflower.org/plants/result.php?id_plant=ACNE2
Fraxinus ornus
The Mountain Ash is Sorbus aucuparia. I know of no tree called the Rocky Mountain Ash.
The name would be Fraxinus excelsior.
Sorbus americana
Fraxinus excelsior (European) Family: Oleaceae.
Rowan or Sorbus aucuparia.
The White Ash reproduces by grafting and by its seeds. YOUR WELCOME!
It depends on the species but beech trees are members of the genus Fagus. For instance, the American beech is Fagus grandifolia.
carbon
Mountain ash is commonly referred to as "rowan" in many regions. Its scientific name is Sorbus aucuparia, and it is a deciduous tree known for its clusters of white flowers and bright orange-red berries. The tree is often found in mountainous areas and has cultural significance in various folklore. Additionally, it is valued for its ornamental beauty and wildlife habitat.