Field Guide

Japanese stiltgrass is an invasive annual grass with thin, pale green, lance-shaped leaves that are 3 inches long. It has spread to nearly every eastern U.S. state. It forms dense patches, displacing and outcompeting native species for nutrients and light.

Ironweeds are tough, grayish-green, branching plants known for their fluffy-looking clusters of reddish-purple florets. They are a familiar sight on roadsides and pastures. Identify western ironweed by the bracts at the base of the flowerheads.

Because each plant disperses a large number of seeds, garlic mustard can outcompete native vegetation for light, moisture, nutrients, soil, and space as it quickly colonizes an area.

Large, crinkled, palmately 5-lobed leaves distinguish golden seal, which occurs in moist woods in the Ozarks and Central Missouri. Populations have been declining due to root diggers.

Hedge parsley is an introduced plant that looks a lot like parsley. It was first collected in Missouri in 1909 and has become much more abundant in recent decades as it spreads along roadsides and railroads.

Heralding a new growing season, harbinger of spring can bloom as early as January in Missouri. You will probably have to look closely for its small clusters. But after a long winter, what a welcome sight they are!

To distinguish false rue anemone from "true" rue anemone, look for the following: 5 white (not pinkish) sepals, and leaves present on the flowering stems. Confirm your identification by noting that it's growing in a colony (not singly) and is in a moist, low area.

Tall bellflower is an abundant native bellflower that is easily identified by its stout, tall habit, short, wheel-shaped, blue corolla, and the curved, purple style that projects beyond the flower.

Rough blazing star is fairly common and scattered nearly statewide. To distinguish between Missouri’s nine species in the genus Liatris, start by noting details of the flower structure. It’s not hard when you know what to look for.

Woollen breeches bears clusters of light blue, bell-shaped flowers. The lower leaves of this hairy plant are shaped something like maple leaves and often have grayish or light green marks that look like water stains.