Field Guide

Starting more than a century ago, this nonnative rose was planted across America — for many good reasons — but multiflora rose has proven to be invasive, and now the goal is to stop its spread.

Common blackberry is only one of several species of blackberry in our state. It grows in rocky, open woods, along bluffs and fencerows, on glades, and in thickets, old fields, and open valleys nearly statewide.

Lead plant is a densely hairy small shrub producing tight, elongated spikes of small purple flowers from May through August. It grows in prairies, glades, and savannas.

Golden rain tree is native to China, Korea, and Japan. It was cultivated in Missouri for years. Because it readily escapes from cultivation and is invasive, it is no longer recommended for planting in Missouri.

Though it doesn’t reach a stately size, honey locust commands respect for its many large, strong, usually branched thorns, which can puncture tractor tires as easily as they can poke through tennis shoes! The long, leathery, twisting pods are relished by cattle and by wildlife.

Grown as an ornamental for its attractive pink flower clusters, gracefully spreading branches, and delicate leaves, mimosa is easily propagated and grows rapidly. Unfortunately, it is also an invasive exotic in much of the state.

Green ash is one of the most widely planted shade trees around homes and along streets. In the wild, it lives along streams and in low grounds. Sadly, it is one of the trees most vulnerable to the emerald ash borer, an exotic invasive pest.

White ash leaves turn shades of yellow and purple in fall, and that is one reason it has been a popular landscaping tree. Many birds and mammals feed on the paddle-shaped seeds.