Che, often called Melon Tree, is a marginally hardy fruit tree in my area. The female died in the harsh winter, but the male had no dieback and has flowered this month.
These trees have been called Cudrania tricuspidata, but now are classified in same genus as Osage Orange and are called Maclura tricuspidata. Nurseries that sell the tree have them grafted on Osage Orange rootstock so that they do not sucker.