Field Guide

Moth mullein is a native of Eurasia introduced to our continent in the early 1800s. Since then, it has spread across North America. It’s named because the fuzzy flower, with 2 antennalike stamens, looks something like a moth.

Introduced as an ornamental, beefsteak plant is native to Asia. It is common in moist or dry wooded bottomlands, open valley pastures, and along trails, railroads, and roadsides. It spreads invasively in our state.

Many Missouri children learn about this orange-flowered native plant by playing with the juicy green seedpods, which, when ripe, "explode" upon the slightest touch. This is jewelweed's mechanism for seed dispersal, and it's the reason for the name "touch-me-not."

There are 3 species of Aureolaria in Missouri. Only combleaf yellow false foxglove is annual, has fernlike, delicately dissected leaves, and glandular hairs. It occurs in the Ozarks.

Our two Missouri jewelweeds occur in the same habitats, often side by side, and even botanists can’t tell them apart without the flowers. Pale touch-me-not is the one with the lemon-yellow flowers!

In early spring, henbit carpets entire fields with the pinkish-purple of its small flowers. This nonnative mint spreads abundantly but causes few problems. It has shallow roots and fades before crops begin to grow.

Dwarf larkspur is a single-stemmed perennial with an upright flower stalk bearing racemes of bluish-purple flowers. Like other larkspurs, there is a spurlike appendage behind each flower.

These two species of sweet clover are present all over America. Although they have been planted for forage, as bee plants, and as nitrogen-fixers, white and yellow sweet clover are now classified as invasive for their weediness and the problems they pose for natural habitats.

Wood betony has a tight spiral of tubular, hooded yellow flowers atop a plant adorned with deeply incised, fernlike leaves that are about as attractive as the flowers themselves. In early spring, these leaves have a beautiful wine-red coloration.

Blue cardinal flower, or blue lobelia, is a showy, late-blooming native wildflower that grows along streams, ditches, sloughs, and other wet places. It has blue or purple tubular flowers with 2 upper lips and 3 lower lips.