Betula alleghaniensis (yellow birch, also known as golden birch), is a large and important lumber species of birch native to North-eastern North America. The name "yellow birch" reflects the color of the tree's bark.
Betula alleghaniensis is a medium-sized, typically single-stemmed, deciduous tree reaching 60–80 feet tall with a trunk typically 2–3 ft in diameter, making it the largest North American species of birch. The bark on mature trees is a shiny yellow-bronze which flakes and peels in fine horizontal strips. The bark often has small black marks and dark horizontal lenticels The twigs, when scraped, have a slight scent of wintergreen oil, though not as strongly so as the related sweet birch (B. lenta)
Yellow birch is long-lived, typically 150 years and some old growth forest specimens may last for 300 years. B. alleghaniensis is the provincial tree of Quebec, where it is commonly called merisier, a name which in France is used for the wild cherry.