Field Guide

Arrowheads are aquatic plants with erect, usually arrow-shaped leaves and distinctive three-petaled flowers. They are often called duck potatoes because ducks, geese, and swans relish the tuberlike rootstocks.

Native to Europe and Asia, orange day lily was widely planted by early settlers and has become widely naturalized in North America. The seeds don't mature in Missouri, so all the plants here are spread by root divisions.

The flowers of dayflower are truly blue, and they have only two conspicuous petals. A fast-growing, sprawling, but shallow-rooted weed, this introduced species commonly annoys gardeners.

The bizarre, complicated flowers attract attention! The fruits are edible. Passion flower is a nonwoody vine that climbs via tendrils on trees or other structures. It is native to the southeastern United States, including southern Missouri.

Like many of its relatives in the mustard family, spring cress has a bitter or pungent flavor, similar to horseradish. It is sometimes used as a condiment and in salads. Or you could just enjoy the pretty white flowers!

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!

Common ground cherry is closely related to the tomatillo, which you’ve probably seen in the grocery store or had in a delicious salsa verde at a Mexican restaurant. The fruits of ground cherry are edible, too.

Wild potato vine is related to the sweet potatoes we buy at grocery stores. This native vine is also related to the morning glories that decorate trellises and to the bindweed that plagues gardeners and farmers.

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.

Missouri has two species of sweet cicely, which can be hard to tell apart. Both have umbels of small white flowers, fernlike leaves, and sweetly aromatic, carrotlike roots.