Fraxinus nigra is a species of Fraxinus (ash) native to much of eastern Canada

Canada

Canada is a North American country consisting of ten provinces and three territories. Located in the northern part of the continent, it extends from the Atlantic Ocean in the east to the Pacific Ocean in the west, and northward into the Arctic Ocean...

 and the northeastern United States

United States

The United States of America is a federal constitutional republic comprising fifty states and a federal district...

, from western Newfoundland west to southeastern Manitoba

Manitoba

Manitoba is a Canadian prairie province with an area of . The province has over 110,000 lakes and has a largely continental climate because of its flat topography. Agriculture, mostly concentrated in the fertile southern and western parts of the province, is vital to the province's economy; other...

, and south to Illinois

Illinois

Illinois is the fifth-most populous state of the United States of America, and is often noted for being a microcosm of the entire country. With Chicago in the northeast, small industrial cities and great agricultural productivity in central and northern Illinois, and natural resources like coal,...

 and northern Virginia

Virginia

The Commonwealth of Virginia , is a U.S. state on the Atlantic Coast of the Southern United States. Virginia is nicknamed the "Old Dominion" and sometimes the "Mother of Presidents" after the eight U.S. presidents born there...

.

It is a medium-sized deciduous

Deciduous

Deciduous means "falling off at maturity" or "tending to fall off", and is typically used in reference to trees or shrubs that lose their leaves seasonally, and to the shedding of other plant structures such as petals after flowering or fruit when ripe...

 tree

Tree

A tree is a perennial woody plant. It is most often defined as a woody plant that has many secondary branches supported clear of the ground on a single main stem or trunk with clear apical dominance. A minimum height specification at maturity is cited by some authors, varying from 3 m to...

 reaching 15–20 m (exceptionally 26 m) tall with a trunk up to 60 cm (exceptionally 160 cm) diameter. The bark

Bark

Bark is the outermost layers of stems and roots of woody plants. Plants with bark include trees, woody vines and shrubs. Bark refers to all the tissues outside of the vascular cambium and is a nontechnical term. It overlays the wood and consists of the inner bark and the outer bark. The inner...

 is grey, thick and corky even on young trees, becoming scaly and fissured with age. The winter buds are dark brown to blackish, with a velvety texture. The leaves

Leaf

A leaf is an organ of a vascular plant, as defined in botanical terms, and in particular in plant morphology. Foliage is a mass noun that refers to leaves as a feature of plants....

 are opposite, pinnate, with 7–13 (most often 9) leaflets; each leaf is 20–45 cm long, the leaflets 7–16 cm long and 2.5–5 cm broad, with a finely toothed margin. The leaflets are sessile, directly attached to the rachis without a petiolule

Petiole (botany)

In botany, the petiole is the stalk attaching the leaf blade to the stem. The petiole usually has the same internal structure as the stem. Outgrowths appearing on each side of the petiole are called stipules. Leaves lacking a petiole are called sessile, or clasping when they partly surround the...

. The flower

Flower

A flower, sometimes known as a bloom or blossom, is the reproductive structure found in flowering plants . The biological function of a flower is to effect reproduction, usually by providing a mechanism for the union of sperm with eggs...

s are produced in spring shortly before the new leaves, in loose panicle

Panicle

A panicle is a compound raceme, a loose, much-branched indeterminate inflorescence with pedicellate flowers attached along the secondary branches; in other words, a branched cluster of flowers in which the branches are racemes....

s; they are inconspicuous with no petals, and are wind-pollinated. The fruit

Fruit

In broad terms, a fruit is a structure of a plant that contains its seeds.The term has different meanings dependent on context. In non-technical usage, such as food preparation, fruit normally means the fleshy seed-associated structures of certain plants that are sweet and edible in the raw state,...

 is a samara

Samara (fruit)

A samara is a type of fruit in which a flattened wing of fibrous, papery tissue develops from the ovary wall. A samara is a simple dry fruit and indehiscent . It is a winged achene...

 2.5–4.5 cm long comprising a single seed

Seed

A seed is a small embryonic plant enclosed in a covering called the seed coat, usually with some stored food. It is the product of the ripened ovule of gymnosperm and angiosperm plants which occurs after fertilization and some growth within the mother plant...

 2 cm long with an elongated apical wing 1.5–2 cm long and 6–8 mm broad.

Ecology

It commonly occurs in swamp

Swamp

A swamp is a wetland with some flooding of large areas of land by shallow bodies of water. A swamp generally has a large number of hammocks, or dry-land protrusions, covered by aquatic vegetation, or vegetation that tolerates periodical inundation. The two main types of swamp are "true" or swamp...

s, often with the closely related Green Ash. The fall foliage is yellow. Black Ash is one of the first trees to lose its leaves in the fall.

Black Ash is a food plant for the larva

Larva

A larva is a distinct juvenile form many animals undergo before metamorphosis into adults. Animals with indirect development such as insects, amphibians, or cnidarians typically have a larval phase of their life cycle...

e of several species of Lepidoptera

Lepidoptera

Lepidoptera is a large order of insects that includes moths and butterflies . It is one of the most widespread and widely recognizable insect orders in the world, encompassing moths and the three superfamilies of butterflies, skipper butterflies, and moth-butterflies...

; see List of Lepidoptera that feed on ashes.

Uses

This wood is used by Native Americans of the North East for making baskets and other devices. The Shakers

Shakers

The United Society of Believers in Christ’s Second Appearing, known as the Shakers, is a religious sect originally thought to be a development of the Religious Society of Friends...

also made extensive use of the Black Ash for creating baskets. Also called Basket Ash, Brown Ash, Swamp Ash, hoop ash, and water ash.
It is also a popular wood for making guitars and basses, due to its good resonant qualities.

Creating Basket Strips

Black ash is unique among all trees in North America in that it does not have fibers connecting the growth rings to each other. This has a wonderful implication for basket makers. Temperate trees form annual growth rings of two types of wood. Spring wood is rapidly laid down early in the growing season and is weak. Summer wood is laid down slowly in the summer and fall, and is much darker and tougher. By literally pounding on the wood with a mallet, the spring wood is crushed, allowing the summer wood to be peeled off in long strips. The absence of the connecting fibers is what allows the summer wood strips to separate. It is these long strips that are trimmed and cleaned and then used in basket weaving.