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Weed Identification

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Updated: April 28, 2026

Wineberry

How to identify and manage invasive wineberry (Rubus phoenicolasius).
Arching wineberry stems with red bristle-covered flower buds.
Updated: April 28, 2026

Princess Tree (Empress Tree)

How to identify and manage invasive princess tree (Paulownia tomentosa).
invasive paulownia tomentosa tree with lavender flowers
Updated: April 28, 2026

Winter Creeper

How to identify and manage winter creeper (Euonymus fortunei).
Tangle of ground-covering wintercreeper euonymus stems.
Updated: April 28, 2026

Norway Maple

How to identify and manage invasive Norway maple (Acer platanoides).
Norway maple leaves and seed cluster.
Updated: April 28, 2026

Autumn Olive

How to identify and manage invasive autumn olive (Elaeagnus sp.).
invasive autumn olive shrub with creamy white flowers
Updated: April 28, 2026

Porcelainberry

How to identify and manage invasive porcelainberry (Ampelopsis brevipedunculata).
Teal, blue, and violet-colored berries on a porcelainberry vine stem.
Updated: April 28, 2026

Oriental Bittersweet

How to identify and manage invasive Oriental bittersweet (Celastrus orbiculatus).
Clusters of red-orange berries with yellow-orange covers on bare Oriental bittersweet branches in winter.
Updated: April 28, 2026

Multiflora Rose

How to identify and manage invasive multiflora rose (Rosa multiflora).
invasive multiflora rose shrub with white flowers
Updated: April 28, 2026

Tree-of-Heaven

How to identify and manage invasive tree-of-heaven (Ailanthus altissima).
Flower clusters on the branch tips of a mature Tree of Heaven.
Updated: April 28, 2026

Japanese Knotweed

How to identify and mange invasive Japanese knotweed (Reynoutria japonica).
Upright clusters of tiny white flowers on stems of Japanese knotweed.