Black Walnut

(American Walnut)

Juglans nigra

Juglandaceae (Walnut) Family

This tall tree grows to a height of 50-75 feet with a trunk diameter of 3-4 feet.  The trunk is straight with nearly horizontal branches below and at a sharp angle above.  The bark is medium to dark brown and very rough.  It has deep, short, perpendicular furrows and rounded ridges.  The leaves are compound, with 11-17 oval, lance-shaped leaflets that are heart-shaped at the base and tapering.  They are thin, bright yellow green above and paler hairy beneath.  The long stem is 1-2 feet, without the base.  Flowers are catkins, and bloom in May.  The fruit is rounded and large (1 1/3-3 inches).  The husk is rough and dull green, the shell is thick, rough, and dark reddish brown.  The Black Walnut is found in rich woodlands from Massachusetts to Florida and west to Texas.

Information about this plant from the USDA Plants Database.

Information from the TreeGuide from Athenic Systems.

This page was last updated 11 Jun 2003.