black walnut
Juglans nigra
click thumbnail to enlarge
Form
black walnut form
Habitat
Leaves
black walnut leaves
Twigs
black walnut twigs: pith black walnut twigs: pith
Bark
black walnut bark black walnut bark black walnut bark
Flowers
black walnut: male catkin black walnut: male catkin black walnut: male catkin black walnut: male catkin black walnut: male catkin black walnut: male catkin black walnut: male catkin black walnut: male catkin black walnut: male catkin
Fruit
black walnut fruit black walnut fruit black walnut fruit
  • FAMILY: JUGLANDACEAE
  • ALTERNATE COMMON NAME:
  • LEAVES: alternate, deciduous, pinnately compound; 12-24” long, leaflets subopposite, terminal leaflet small; strongly aromatic
  • FLOWER: monoecious, catkins
  • FRUIT: husk globose, 1.5 inch diameter, dark green, stains skin and clothes; corrugated nut, sweet meat
  • TWIGS: large U-shaped leaf scar; chambered pith
  • BARK: dark, deeply furrowed, tight
  • FORM: large tree, 100 feet tall x 4 feet diamater
  • HABITAT: moist, fertile, well-drained sites
  • WETLAND DESIGNATION: Obligate Upland (UPL): Almost never occurs in wetlands of the Atlantic and Gulf Coast Plain Region
  • RANGE: eastern US, but not southern coastal plains; more common in northwest Louisiana
  • USES: most valuable eastern hardwood; dark colored, attractive grain, easily worked wood used for high quality furniture and veneer; large defect-free trees may be worth $10,000-40,000; nut is edible and is used by wildlife and humans
    • Best Recognition Features:
    1. large, aromatic, pinnately-compound leaves
    2. twigs with chambered pith
    3. large, round, husked nuts
    LSU School of Renewable Natural Resources

    School of Renewable Natural Reources    		 Louisiana Plant Identification and Interactive Virtual Tours
    Dr. Chris S. Reid, Project Director | creid4@lsu.edu
    LSU School of Renewable Natural Resources
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