Field Guide

Bull thistle is a weedy introduction from Europe, found statewide. To tell it from our other thistles, note its stems with spiny-margined wings, and its leaves with the upper surface strongly roughened with stiff, spiny bristles.

In early spring, henbit carpets entire fields with the pinkish-purple of its small flowers. This nonnative mint spreads abundantly but causes few problems. It has shallow roots and fades before crops begin to grow.

Wild strawberry is one of the parents of the cultivated strawberry and is one of our prized native wild edibles. It’s also a valuable food for innumerable animals, and it’s attractive in native wildflower gardens.

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.

Queen Anne’s lace is many things to many people — roadside wildflower, noxious introduced weed, wild edible, medicinal herb, delightful cut flower. In Missouri, it blooms May through October.

Sometimes called beebalm, wild bergamot (or horsemint) is a native mint with a long history as a valued Missouri herb. Some people make tea from it, but most of us enjoy its large, colorful flowers.

Square, unbranching stems, opposite leaves, two-lipped flowers, and a mild minty fragrance are clues Ohio horsemint is in the mint family. Tight, rounded flower clusters are stacked atop one another at the stem tips.

A square-stemmed plant with opposite leaves, self-heal bears two-lipped blue, lavender, or violet flowers in a cylindrical head. We have two varieties of self-heal in Missouri, one native and one introduced.

At first glance, you might overlook corn salad, except for the large colonies it often forms. The young leaves can be eaten as a salad green, hence the name.

Toothwort is a member of the mustard family that blooms March–May in wooded slopes and valleys. The sharply toothed, deeply lobed leaves are distinctive. The bright white, 4-petaled flowers shine at forest visitors.