A commonly accepted definition of invasive species is "a plant growing in an area where it is unwanted or causes damage to the ecosystem". Under this definition it depends what tree it is (Oak) and where it is planted or growing? For example in the UK the English Oak is not invasive, but in other areas or country's it may well be
In some specific places maybe but not generally.
Of course a tree can be endangered. Think about deforestation, and if there was a tree there that didn't grow many other places. So yes, a tree can be endangered
No it is not
yes!
Burr Oak is of the White Oak family, they are one and the same.
Yes, the White-Lipped Tree Frog is endangered.
Yes Iowa's state tree is the swamp white oak tree I did research
the white oak.
The Whit Oak is the Official Tree of Maryland.
Connecticut's tree is the White oak
The type of tree that has an obovate lobal leaf is the oak tree. There are different species of oak trees.
White Oak
white oak
suk it
The oak tree has thick bark. In fact the Cork Oak has such thick bark it is used for cork boards.
depends on the type of oak tree there's red oaks and white oaks