Black Walnut (Eastern Black Walnut)
Juglans nigra · Juglandaceae (Walnut family)
AI-generated identification · may be incorrect
Leaf Morphology
Leaf Type
Compound (pinnately compound, typically with 15-23 leaflets, deciduous)
Shape
Lanceolate to ovate-lanceolate leaflets with serrate margins
Margin
Finely serrate (toothed) on individual leaflets
Arrangement
Alternate, pinnately compound leaves along the stem
Venation
Pinnate venation on individual leaflets
Key Features
Dark brown to black furrowed bark, large compound leaves with an odd number of leaflets (often lacking a terminal leaflet), and large round nuts with a solid, indehiscent husk.
Description
The tree produces a chemical called juglone that inhibits the growth of certain surrounding plants.
Habitat
Found in rich, deep, moist bottomland soils and lower slopes of deciduous forests, thriving in full sun.
Native Range
Native to eastern North America, ranging from southern Ontario west to southeast South Dakota, south to central Texas, and east to northwest Florida.