American hazelnut

Corylus americana

''Corylus americana'', the American hazelnut, is a species of deciduous plant that grows in the form of a shrub; it is native to eastern North America, in eastern Canada and the Eastern United States; it has been classed within the genus ''Corylus''.
Corylus americana (American hazel) Corylus americana autumn leaf colors. American hazelnut,Corylus americana,Fall,Geotagged,United States,autumn colors,fall colors,hazel

Appearance

The plant grows to a height of roughly 2.5 m to 5 m , with a crown spread of 3 m to 4.5 m . It is a medium to large shrub, which under some conditions can take the like of a small tree. It is often multi-stemmed with long outward growing branches that form a dense spreading or spherical shape.

American hazelnut produces edible nuts that mature at a time between July and October, these are encased in bracts with a leaf-like cover.
American Hazelnut - Corylus americana These flowers were gorgeous! ID is tentative.

Habitat: Deciduous forest at the edge of a meadow
https://www.jungledragon.com/image/79156/red_bud.html
 American hazelnut,Corylus americana,Geotagged,Spring,United States,bud

Habitat

The nuts produced by American hazelnut are a mast of squirrels, deer, turkey, woodpeckers, pheasants and other animals. The male catkins are a food staple of ruffed grouse throughout the winter.
American Hazelnut - Male flowers Male flowers appear during the spring as 5-7 cm long, yellowish brown catkins. It was growing along a wood margin. 

In this shot, you can also see (middle right) one of the female flowers, which are tiny and reddish.

https://www.jungledragon.com/image/59313/american_hazelnut.html
 American Hazelnut,American Hazelnut catkins,Corylus americana,Geotagged,Spring,United States,catkins,corylus,flower,hazel,hazelnut,male flower

Uses

The nuts are edible, although smaller than the more commonly cultivated filberts .

Native Americans used ''Corylus americana'' for medicinal purposes.

References:

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Taxonomy
KingdomPlantae
DivisionAngiosperms
ClassMonocots
OrderAsparagales
FamilyBetulaceae
GenusCorylus
SpeciesC. americana