Common Name: Blue atlas cedar
Cedrus atlantica has blue-tinged foliage and is one of the four true cedars. There are several in the Garden, but perhaps the most striking is the weeping C. atlantica 'Glauca Pendula' which forms an archway in front of the Shaughnessy Restaurant.
Tree photo by David J. Stang, via Wikimedia Commons
Branches and cones photo by Strobilomyces, via Wikimedia Commons