Field Guide

Yellow wood sorrel is both a garden weed and a wild edible. It has a pleasant sour taste, which is why some people call it sourgrass and add it to salads.

Missouri’s cattails are all tall wetland plants with narrow, upright leaves emerging from a thick base, and a central stalk bearing a brown, sausage-shaped flower spike.

Spatterdock is a native aquatic plant with deep yellow, saucer-or globe-shaped flowers to 3 inches across. It grows in ponds, lakes, and slow-moving to stagnant portions of streams, rivers, and spring branches.

Water shield is a long-stemmed aquatic plant with floating oval leaves that resemble small water lily leaves, only without a split. The stems and lower leaf surfaces have a thick, jellylike coating.

American lotus is an aquatic plant with circular leaves that are held above water. The large yellow flowers have an interesting showerhead-like disk at the center.

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.

Smooth spiderwort is the most common and widely distributed of Missouri's spiderworts. It has slender, straight or zigzag stems. The long, narrow leaves are folded lengthwise and attach to the stem in a thick node. The 3 petals of the triangular flower are blue, rose, purple, lavender, or white.

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.

Three species of yucca grow wild in Missouri. Spanish bayonet was introduced from the Southwest and has escaped from cultivation, but our two soapweeds are native.