Field Guide

In summer, you’re almost guaranteed to see big colonies of crown vetch along Missouri's highways. This weedy nonnative plant stabilizes the dirt after road construction but degrades our natural ecosystems.

Korean lespedeza is an Asian clover that was introduced to North America to prevent erosion, to feed wildlife and livestock, and, since it is a legume, to add nitrogen to the soil. A weedy plant, it has spread statewide since the 1930s.

Rue anemone is a common and beloved spring wildflower. It blooms March–June. It and other woodland wildflowers require a forest habitat to survive, so they depend on the oaks, hickories, maples, and other trees that surround them.

Dutchman’s breeches, a common spring wildflower, is easy to identify. Note its bluish-green, fernlike leaves and its leafless stalks, from which dangle several white flowers shaped like old-fashioned knee breeches.

Of the many invasive nonnative plants that were originally introduced to stop soil erosion and improve soils, kudzu is one of the worst. This “vine that ate the South” is often the first plant that comes to mind when we think of “invasive plants.”

A bushy native perennial legume with small clusters of pink flowers, slender bush clover provides nectar for numerous insects. Several types of birds eat the seeds, and many mammals eat the foliage.

Queen Anne’s lace is many things to many people — roadside wildflower, noxious introduced weed, wild edible, medicinal herb, delightful cut flower. In Missouri, it blooms May through October.

Butterfly pea is a low, shrubby, or twining perennial in the pea family, with showy, butterfly-like flowers. The leaves are compound with three leaflets. This species grows in the southern parts of Missouri, in acid soils.

Everlasting pea is an old-fashioned garden plant your grandma might have grown on a fence. Native to the Old World, it often persists at old homesites.