Black Willow (Swamp Willow, Goodding's Willow)
Kingdom: Plantae > Division: Tracheophyta > Class: Magnoliopsida > Order: Malpighiales > Family: Salicaceae > Genus: Salix > Species: Salix nigra · Salicaceae (Willow family) · Simple, Deciduous
Species
Salix nigra
Leaf Type
Simple, Deciduous
Family
Salicaceae (Willow family)
Shape
Lanceolate to linear-lanceolate, long-acuminate (tapering to a long, slender tip), often slightly falcate (sickle-shaped)
Size
2 to 5 inches long (5 to 13 cm), 1/4 to 3/4 inch wide (0.6 to 2 cm)
Margin
Finely serrate (closely and finely toothed along the entire edge)
Arrangement
Alternate, spiral along slender hanging twigs; short petiole
Rarity
Very Common
Color & Pattern
Bright green to medium green on the upper surface, paler green to glaucous underneath; lacks the stark white underside of some other willow species
Venation Pattern
Pinnate with a prominent midrib and secondary veins curving near the margins
Texture & Surface
Glabrous (smooth and hairless) on both sides at maturity; thin and flexible leaf blade
Description
The Black Willow is a medium to large fast-growing deciduous tree that often grows multi-trunked or leaning over waterways. Its foliage features long, narrow, bright-green lanceolate leaves suspended on pendulous, slender twigs. In spring, it produces soft catkins (flowers) before or along with the leaves. The mature bark is deeply furrowed, dark brown to blackish, giving the tree its common name.
Key Features
Narrow, long-tapered leaves that are bright green on both sides (not stark white below), finely serrate margins, persistent or early-deciduous leaf-like stipules at the base of petioles on vigorous shoots, and flexible reddish-brown to yellowish twigs.
Habitat
Riparian zones, stream banks, river margins, floodplains, wet meadows, lake shores, and swampy lowland woods; prefers full sun and moist to wet soils
Geographic Range
Native to eastern and central North America, ranging from New Brunswick west to Minnesota and south to Florida and eastern Texas
Condition Notes
Good overall condition; foliage shows minor insect chewing holes on a few leaves, which is typical for wild native willows in late spring or summer. Overall health grade: Good.
Interesting Facts
Willow bark was the original source of salicin, the chemical precursor to modern aspirin (acetylsalicylic acid). Black willow wood is lightweight and flexible, traditionally used for crates, artificial limbs, and woven baskets.
Medicinal & Uses
Historically used by Native Americans and early settlers to relieve pain and fever via bark teas rich in salicin. Commonly used in riparian restoration to control soil erosion along riverbanks.
Ecological Role
Provides critical stream bank stabilization against erosion. Serves as a host plant for numerous butterfly species (such as the Viceroy and Mourning Cloak) and offers nesting habitat and forage for waterfowl and mammals.
Similar Species
Weeping Willow (Salix babylonica) has much longer, more strongly weeping branches and paler leaf undersides; Peachleaf Willow (Salix amygdaloides) has broader leaves with glaucous white undersides; Sandbar Willow (Salix interior) has extremely narrow leaves with widely spaced teeth.
Foraging Tips
Look along wetlands and riverbanks. The inner bark can be harvested in early spring for medicinal tea (contains natural salicylates). Always verify identification to avoid confusing with toxic stream-side shrubs.
Toxicity Warning
Mildly Toxic / Medicinal Caution: Contains salicin, which can cause stomach upset, nausea, or allergic reactions in individuals sensitive to aspirin or salicylates. Not generally lethal, but bark extracts should be used with caution.