Field Guide

Five species of ironweeds live in Missouri. Starting in the middle of summer, they bear showy clusters of magenta or purple flowerheads at the branching tops of upright stalks.

Late boneset, or late-flowering thoroughwort, is a native perennial wildflower with clusters of white, fuzzy-looking flowers. It’s one of nine similar-looking species of thoroughworts in Missouri.

Nine white-flowering species of thoroughworts, or bonesets, have been recorded for Missouri. They have rounded flower clusters that look rather fuzzy, because each little composite flowerhead lacks petal-like ray florets.

Violets, as a group, are fairly easy to identify, with their colorful five-petaled “faces” so welcome in springtime. Missouri has 17 species, and some are confusingly similar. This page introduces them as a group.

Pale violet, or cream violet, is Missouri’s only white-flowering violet that produces true aboveground stems. It is scattered to common in the Ozarks, Ozark border, and Bootheel lowlands and uncommon or absent elsewhere in the state.

Missouri violet is one of five Missouri stemless violets with purple or blue flowers and unlobed leaves. It is distinguished by its triangular or heart-shaped leaves that are longer than wide and are coarsely toothed only on the basal two-thirds.

Ragworts, or groundsels, have several common names, and separating the different species can be a little tricky. But members of genus Packera, with their bright yellow daisy-like flowers, are distinctive as a group. Seven species have been recorded in Missouri.

Curly dock’s rosettes of wavy-edged, leathery leaves are a common sight on roadsides and other disturbed lands. The fruit clusters at the top half of the plant turn dark rusty brown and are easy to spot from a distance.