SBG thinks this Corylus avelana contorta, the twisted hazelnut is one of the best craft and decor plant to add to the garden. Best of all it bursts into dangling catkins on the barren twigs at the first sign of spring - focal point of the early garden and and endless supply of sticks.
"Coppicing is a highly skilled way of harvesting wood without chopping down the whole tree (which invariably kills it). Instead, part of the tree is cut, leaving the rest to regrow. Done correctly, regrowth is vigorous, and the same tree can be harvested again every five to ten years, often over hundreds of years." This page is from Vertical Veg, about urban coppicing in Manchester, England. Biochar is one of the useful byproducts.