Field Guide

American water willow is common on gravel bars and other stream banks throughout much of Missouri. The dense colonies of emergent stems have leaves like a willow’s, but the two-lipped flowers resemble little orchids.

The common violet can be violet, white, or white with violet mottling or spots. One of 17 species or violets in Missouri, it occurs statewide in a variety of habitats. Note its heart-shaped or rounded, scalloped leaves, and (usually) the presence of hairs on stems and/or foliage.

The yellow violet is Missouri's only all-yellow violet. This native wildflower is less common than violet violets. Look for it in low woods, rich slopes, and wooded floodplains.

The flowers of blue-eyed Mary are only about a half inch wide, but this pretty wildflower makes up for it by usually appearing in abundance, covering a patch of forest floor with little sky-blue and white “faces.”

Dead nettle, like its close relative henbit, is a common, weedy mint that, in early spring, can carpet wide patches of disturbed ground. Recognize dead nettle by the pyramidal look of its purple- or blue-tinted foliage.

An annual, spring-blooming wildflower, Miami mist has loose coils of small blue flowers with distinctive, delicate fringes on the petal lobes.

Small bluet is a mat-forming winter annual that can color entire lawns blue with its tiny flowers. You can start learning to recognize it by noting the reddish-purple color at the center of the blue-violet flowers.

Johnny-jump-up is a flat-faced violet whose small flowers are a washed-out blue or violet with a very light yellow or white center. Look for it in fields, meadows, glades, rights-of-way, disturbed sites, and possibly your front lawn.

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.