A graceful, fast-growing pioneer tree prized for its brilliant white peeling bark, fluttering diamond-shaped leaves that turn clear yellow in fall, and slender weeping branchlets. POWO (Kew) records it as native across Europe and northern Asia, from the Atlantic seaboard to Siberia, making it one of the most cold-hardy of all broadleaf trees. It thrives where little else will — poor, dry, acid soils — and casts only light, dappled shade, so a rich underplanting can grow beneath it. Be honest about the trade-offs: it is relatively short-lived (typically 50-80 years), shallow-rooted, a thirsty competitor near borders, and its abundant wind-borne spring pollen is a significant hay-fever allergen.