South Carolina's nickname is the easier of the two: It is The Palmetto State because of a fan-leafed palm tree that grows there.

VOA: special.2011.01.16

It is to eat the fruit of the tree of knowledge because if human beings obtain knowledge, they will be like the gods,and that is unacceptable.

食用智慧树的果实,如果人类得到智慧,将与诸神无二,这当然是不能接受的

耶鲁公开课 - 古希腊历史简介课程节选

What it suggests is that "tree" is another word for "arbor."

指的就是“tree“是，“arbor“的另一种说法“

耶鲁公开课 - 文学理论导论课程节选

South Carolina's nickname is the easier of the two: It is the Palmetto State because of a fan-leafed palm tree that grows there.

VOA: special.2011.01.16

Maine,in the nation's northeast, is "The Pine Tree State" because it is covered in evergreen woods.

VOA: special.2009.08.09

It is named the Buckeye State after a tree that produces nuts similar to chestnuts.

VOA: special.2009.08.23

It parks in front of the Red Lion Inn. As in the original picture, there is a Christmas tree on the car as it is being delivered to a family.

VOA: standard.2009.12.25