Field Guide

In Europe, St. John’s-wort was long used as a medicinal herb and to ward off evil magic. Today, researchers are finding it can treat depression. Yet it poisons livestock and in some places is an invasive weed.

A tall, smooth, branching plant with red stems and juicy, dark purple berries, pokeweed is both toxic and a traditional edible potherb called poke salat. It is common statewide.

This native lily looks a lot like the Asian “tiger lily” that is commonly cultivated in gardens. Michigan lily, however, has leaves mostly in whorls and lacks the round “bulblets” that tiger lily forms in its leaf axils.

Blackberry lily has leaves like an iris, flowers like an Asian lily, and seeds that look like blackberries! Introduced as an ornamental, this self-seeding member of the iris family occurs on bluffs, roadsides, and old homesites.

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.

“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.

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.

White crownbeard is a tall native perennial wildflower with clusters of white flowerheads. It's called “wingstem” for the narrow green wings running along the stem. It’s called “frostweed” because it forms "frost flowers": strange and beautiful formations at the stem bases after a sudden hard frost.

Compass plant grows to 8 feet tall and has foot-long, deeply cleft leaves at its base. It got its common name because its leaves turn so that the surfaces face east and west to take full advantage of the sun’s rays.