Q.what was the tree
when I was a child,65 years ago, a neighbor had a strange tree that I liked very much It looked like it was grafted to the top of another tree. It was all twisted on top and looked like a mulberry with no berries. What was it ? it was perhaps about 15 feet tall name the tree and tell me where to get one
Certified GKH Gardening Expert
That sounds like, either a weeping dwarf mulberry, or dwarf weeping cherry. They can both develop strange, twisted branches. Here is an article on weeping cherry:https://www.gardeningknowhow.com/ornamental/trees/weeping-cherry/weeping-cherry-growing-tips.htm
Here is an article for the weeping mulberry:https://www.gardeningknowhow.com/ornamental/trees/fruitless-mulberry/weeping-mulberry-tree-care.htm