Field Guide

Wild and cultivated ginseng produce an annual crop in the United States and Canada valued in excess of $25 million, but overzealous collection is causing serious concern about the survival of American ginseng in the forest ecosystem.

White snakeroot looks very similar to thoroughworts, but it has triangular leaf blades that are more broadly angled or rounded at the base. White snakeroot is common statewide. It’s a toxic plant if eaten, so it’s good to be able to identify it.

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.

“It’s an odd plant,” this rattlesnake master, “with its leaves like yucca, a head like a thistle, and second cousin to the carrot.” That’s how the great prairie writer John Madson summed it up!

False aloe is one of the few native Missouri plants related to the agaves, or century plants, of the Southwest. Unlike agaves, a false aloe rosette can bloom and rebloom, and it doesn’t die after sending up a flowering stalk.

Large stands of wind-pollinated giant ragweed commonly form in disturbed areas, causing late-summer misery in the form of hay fever for many Missourians.

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!

Missouri has 276 species in the grass family, including well-known crop plants and our native prairie grasses. Distinguishing between the species can be difficult, but it’s easy to learn some basics about the group.

A member of the buttercup family, thimbleweed is named for the thimble-shaped dome of fruits that are densely packed at the center of the flower. Look for it blooming from late April through August in rocky or dry open woods and prairies.

Prairie alum root lifts its small, greenish, bell-shaped flowers high on a hairy stalk. The leaves are all in a basal clump, have long stalks, and look a bit like maple leaves.