Field Guide

A big river floodplain species, decurrent false aster has declined as wetlands have been drained and converted to agricultural crop production.

These two species of sweet clover are present all over America. Although they have been planted for forage, as bee plants, and as nitrogen-fixers, white and yellow sweet clover are now classified as invasive for their weediness and the problems they pose for natural habitats.

There are nearly 20 species in the genus Ranunculus in Missouri. Identify early buttercup by its early blooming time, its distinctively shaped, usually hairy leaves, and its preference for open woods, glades, or prairies.

Wood betony has a tight spiral of tubular, hooded yellow flowers atop a plant adorned with deeply incised, fernlike leaves that are about as attractive as the flowers themselves. In early spring, these leaves have a beautiful wine-red coloration.

Decades ago, sericea lespedeza was introduced in hopes it would provide hay, improve pastures, stop soil erosion, and supply food and cover for wildlife. Unfortunately, it has proven to be an aggressive, invasive weed that is extremely difficult to control, escapes cultivation, and outcompetes native plants.

There are 23 species of goldenrods in Missouri. They can be hard to identify to species, but as a group, the goldenrods are common and nearly unmistakable.

The flowers of southern wild senna don’t look much like typical pea-family flowers, but its leaves and bean pods show the family resemblance. Look for it in moist situations, mostly south of the Missouri River.

Similar to kudzu, Chinese yam is an aggressive vine that overtakes nearly everything within reach that stands still long enough! Learn more about this invasive plant — and please don’t plant it!

Swamp milkweed has pink flower clusters at the tips of its tall stalks. The leaves are opposite, narrow, and up to 6 inches long. It grows in moist bottomland soils.