Black Willow

Salix nigra

Family:
Salicaceae

Lifecycle:
Perennial

Native or Introduced:
Native

Nutrient Removal Rating:
Low

Wildlife Value:
Low

Invasiveness:
Medium (in constructed wetlands)

Rooted or Floating:
Rooted

Site Requirements:
Full sun to part shade

Maximum Water Depth:
12 inches

Plant Description:
Black willow is a deciduous, woody, semi-aquatic tree that grows to be 15-20 feet tall. This plant grows rapidly. Foliage is dark green and shiny above and light green below.

Black willow is a native of the US and is commonly found along stream banks and in low moist areas. 

It is undesirable in constructed wetland systems because the root system can penetrate the clay-liner, creating leaks which could short-circuit treatment system and may result in contamination of groundwater.