Field Guide

True to its name, common evening primrose is the most common and widespread evening primrose in Missouri. It is most noticeable late in the season, when it reaches its greatest height and the flowers at the top are most visible.

Yellow star grass grows throughout the tallgrass prairie region. Imagine the thoughts of pioneers when they gazed upon these bright little lilies during stops along their westward journey!

Hydrilla is probably the worst submersed aquatic weed in America. It harms aquatic communities in small ponds, lakes, and rivers. It hurts our economy by hindering fishing and other recreational uses in large reservoirs. Learn about it and prevent its spread.

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.

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.

These aquatic algae look like regular vascular plants. Chara has a crisp, gritty texture, a musky odor, and gray-green, needlelike structures that resemble leaves.

Water milfoils are feathery aquatic plants that grow rooted in shallow water. Their tips emerge above the waterline and bear bladelike, toothed leaves.

Naiads are slender, narrow-leaved plants that grow completely under water and are rooted to the bottom. They never have broad, floating leaves or conspicuous flowers or seed heads.

Coontail, a common submerged aquatic plant, got its name from the crowded upper leaves, which make the stem tip appear bushy like the tail of a raccoon.