English Holly

Genus: Ilex

Species: aquifolium

Description: Glossy dark green leaves with sharp spines along tips and edges. Small white flowers and small bright red fruit. Often grows into a tall, thick-trunked tree.

How it spreads: Bright red fruits are dispersed by birds. Male and female flowers grow on different trees, rapidly sprout from the roots after being cut down.

What it threatens: Invades upland forests and the edges of wetland areas. Its dense growth blocks light from reaching the forest floor and inhibits the normal growth of native species.

More information: Washington's Invasive Species Coalition

Disclaimer - Clean Water Services does not endorse or recommend specific herbicides for use in controlling these species. To protect water quality, always follow herbicide label directions and obey application laws when using any herbicide.