not grow on trees

absence makes the heart grow fonder

One feels more love or affection for those one loves when parted from them.

bark up the wrong tree

To take the wrong approach to a situation; to follow a false lead; to attempt to solve a problem using mistaken assumptions about its true nature.

charm the birds from the trees

To behave in a very charming manner.

Christmas tree bill

A bill consisting of many riders that attracts many, often unrelated, floor amendments, which may provide special benefits to various groups or interests.

dead tree edition

The physical, printed version of a publication.

fall out of the ugly tree and hit every branch

To become extremely unattractive.

fruit of the poisonous tree

Evidence that has been obtained as the result of an illegal act on the part of law enforcement personnel (such as an unlawful warrantless search, or continued questioning of a witness who has invoked the right of counsel), and which is therefore excluded from being admitted as evidence in a trial.

go climb a tree

Go away; a rude dismissal.