arbor, Garden shelter providing privacy and partial protection from the weather, most commonly a lightweight, latticed framework (trellis) of wood or metal with interlaced branches of vines or climbing shrubs trained over it. If there is a distinction between an arbor and a bower, it is that the bower is an entirely natural recess whereas an arbor is only partially natural.
arbor Article
arbor summary
Know about the structure and use of an arbor
Below is the article summary. For the full article, see arbor.