10/13/2026
Nightmare in the Understory: How to Identify Honeysuckle Species
Honeysuckle (Lonicera spp.)
In Missouri, the most common bush honeysuckle is Amur honeysuckle (Lonicera maackii). There is also another invasive Asian bush honeysuckle here: Bell’s honeysuckle (Lonicera × bella), which is a hybrid of Lonicera morrowii and Lonicera tatarica.
Amur honeysuckle appearance:
Amur honeysuckle is a multi-stemmed shrub with arching branches that can reach 15 to 30 feet in height and width, creating a dense canopy. Mature plants have gray to light brown bark with shaggy, peeling strips on older stems. The shrub looks like a multi-trunk umbrella, with branches that bend downward. Its leaves grow in pairs along the stem, are elliptical to oval, taper to a point, measure 2 to 3 inches long and ½ to 1½ inches wide and are dark green on top and lighter underneath. The leaves are smooth and not toothed. Mature stems have a hollow center, which helps tell them apart from native honeysuckles. The roots are reddish-orange and spread out from a central white root.
Bell’s honeysuckle appearance:
Bell’s honeysuckle is a multi-stemmed shrub with arching branches that can grow up to about 20 feet tall and often forms dense thickets. Young stems are light brown, a bit hairy, and hollow between the nodes. Older stems are gray-brown, shaggy, and have peeling bark. The roots are fibrous, shallow, and can produce new shoots. The leaves grow in pairs, are oval to oblong, smooth-edged, 1 to 3 inches long, widest at or below the middle, and have a rounded base. The top of the leaf is green, while the underside is often slightly fuzzy.
Both Amur and Bell’s honeysuckles grow leaves one to three weeks earlier than native species and keep their leaves a couple of weeks longer in the fall.
The picture shows the four invasive honeysuckle species (Wisconsin Department of Natural Resources). Amur and Bell’s honeysuckles are already in Missouri, while Morrow’s and Tartarian honeysuckles are quickly spreading in from the east.
Tomorrow, we will share one of several ways to remove honeysuckle without using herbicides.