A catalog of Native North American Plants: Juglan nigra

Juglan nigra

Common name: Black walnut

A member of the walnut family. It is a large deciduous tree that grows up to 40 m tall. Its bark is deeply furrowed into narrow ridges. The leaves are compound and alternately arranged on the stem with fifteen to nine leaflets. The leaflets have a rounded base and a long-pointed tip as well as having an edge. The leaves are overall dark green in color and are typically hairy on the underside.  The leaf scar has 3 prominent bundle scars and has a notch on the side that points toward the tip of the branch. flowers are in drooping catkins 8–10 cm long. Ripens during the autumn into a fruit (nut) with a brownish-green, semi-fleshy husk and a brown, corrugated nut. The whole fruit, including the husk falls in October; the seed is relatively small and very hard.

Native to North America. It grows mostly, from southern Ontario, west to southeast South Dakota, south to Georgia, northern Florida and southwest to central Texas.

Dye Color: Brown, Orange

Dye source

Mordant

Process

Color

Leaves

Alum

Heat

Yellow

Leaves

Iron

Heat

Dark gray brown

Leaves

Tin

Heat

Bright yellow orange

Fruit

Alum

Heat

Light tan peach

Fruit

copper

Heat

Light golden tan

Husk

Tin

Heat

Cinnamon brown

Husk

Iron

Heat

Dark black brown

Husk

Alum

Heat

Dark brown

Bark

Alum

Heat

Yellow tan

Bark

Iron

Heat

Medium gray brown

 

black walnut

Samples: Cotton, Linen, wool, silk
Mordant: Alum
Dye : leaves and husk
Modifier : Rust