Betula michauxii, Newfoundland dwarf birch, is a species of birch which is native to Newfoundland from which it got introduced to Nova Scotia and Quebec. The species is 0.5 metres (1 ft 8 in) tall and have a wintergreen smell. The leaves are obovate and have glabrous surface. Infructescence is cylindric, erect, short, and 0.5–0.8 centimetres (0.20–0.31 in) long. The fruits ripe by fall and are as glabrous as the leaves.