The Hazelnut is a small tree or large shrub capable of producing nuts that animals and people find delicious. The tree also goes by the name of American filbert. It grows across most of the nation and is a deciduous tree, losing its leaves each fall.
The hazelnut can grow to heights of 15 and 16 feet in the taller individual specimens, with the tree being as wide at the top as it is tall.
Hazelnuts are close relatives of such tree species as birches, alders and hop hornbeams. It possesses the scientific name Corylus Americana.
The leaves of the hazelnut grow alternately, which means only one leaf develops on the twig at each node. These leaves are broad and have distinctly serrated edges.
Some of the female flowers on a hazelnut turn into the nut of the tree, which has the shape of an egg and has a leafy almost paper-like husk surrounding it. These half-inch long nuts ripen by late summer. People will roast them or use them in recipes after grinding them into a fine powder.
The autumn season finds the green leaves of a hazelnut changing to an assortment of colors, from orange and red to shades of yellow and green-yellow.