Birch (genus Betula), is a broadleaved deciduous hardwood tree in the family Betulaceae which also includes alders, hazels and hornbeams and is closely related to the beech/oak family, Fagaceae. They are typically rather short-lived pioneer species widespread in the Northern Hemisphere particularly in northern temperate and boreal climates. It can be used as a wand wood. Though Garrick Ollivander himself did not use it, his associate in the Hogsmeade branch was known to sell wands made from birch.
Twigs of either birch or hazel were used in the construction of Firebolt broomsticks depending on the purchaser's personal preference. Birch was known to give more "oomph" in higher ascents, but hazel was useful for hair-trigger steering.