The hop hornbeam tree does have fruits that look exactly like hops, hence the naming of the tree. However, hops and hop hornbeam trees are not even remotely related, and there's no use trying to brew with these "hops" from the trees. There are scientific reasons for the similar patterns of the leaflets/"flower petals", which are also formed in various other flowers including roses, sunflowers, etc. Pine cones also have a very similar structure, but more woody rather than leafy. Regardless of the reasons why.... it is pretty darn cool looking at one of these trees and thinking, holy cow, if only those were real hops......