You selected a Gray Birch:
Scientific Name:
Betula populifolia
Leaves:
2-4 in. long, 1 ½ -2 in. wide. Triangular; sharply double saw toothed; dark green above, paler beneath with tufts of hair on veins; fall color pale yellow.
Flowers:
Brownish, usually solitary, cyndrical catkins; in early spring.
Buds:
Small, light brown to greenish; Terminal bud lacking except on spur shoots.
Bark:
Dark brown when young, then grayish- white marked by dark brown chevrons; bark does not readily peel.
Height:
Height of 30-40 ft
Diameter:
Diameter of 1-1 ½ ft.
Range:
Northeast United States south to New Jersey; Southern Canada. Native in Vermont.
Other Info:
Often mistaken for paper birch (Betula papyrifera). Fast growing and short lived, 20-30 years. Used as an ornamental, for fuel, and for cabinetwork.