Field Guide

The interesting, bright yellow flowers of showy partridge pea are immediately recognizable. At night, the leaflets close and pull upward into a sleeping position.

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.”

A common, eye-catching native spring wildflower, blue phlox is found nearly statewide.

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.

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

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.

Yellow rocket is a mustard native to Eurasia that was introduced long ago and today is found across North America. The mustard family used to be called the Cruciferae, because of the cross shape formed by the four petals.

Next time you breeze past weedy black mustard on the highway or spot it in a fallow field, think of how important this and other mustards are to the world economy – and to your dinner table.

A spiny annual with bright yellow flowers and dandelion-like leaves, buffalo bur is an introduced member of the nightshade family.

Wood nettle, or stinging nettle, often forms dense stands in bottomland forests, streamsides, and other places. There, canoeists, anglers, and others try to avoid touching its stinging hairs!