Tree #11, Black Walnut
Juglans nigra
Juglandaceae
 
Identification Clues: The most conspicuous characteristic of this deciduous, slow growing tree is the pinnately compound leaf.  One leaf (see photo below) is composed of many leaflet pairs that arise along a long central axis.  The flowers are a cluster of drooping catkins.  The branches arise alternately from the trunk.  The fruit of the tree is a nut, each containing one seed. 

Distribution:  The black walnut is one of the most valuable native trees.  It is found throughout the eastern part of the country, and in South Dakota is native along the Big Sioux River. 

Highlights:  The beauty and durability of the heartwood of the black walnut makes it highly prized by carpenters.  Other uses of its products include its bark for tanning, nut husks for dye, and the nut for food. 

 Click on any of the thumbnails below to view full-sized images.
     
 
Page originally created by Cory Medill on October 6, 1999
Site maintained by Keith Wrage