Field Guide

Hedge parsley is an introduced plant that looks a lot like parsley. It was first collected in Missouri in 1909 and has become much more abundant in recent decades as it spreads along roadsides and railroads.

Korean lespedeza is an Asian clover that was introduced to North America to prevent erosion, to feed wildlife and livestock, and, since it is a legume, to add nitrogen to the soil. A weedy plant, it has spread statewide since the 1930s.

To distinguish false rue anemone from "true" rue anemone, look for the following: 5 white (not pinkish) sepals, and leaves present on the flowering stems. Confirm your identification by noting that it's growing in a colony (not singly) and is in a moist, low area.

White anemone is a showy native wildflower with interesting, deeply toothed leaves. Often occurring in colonies, it spreads easily (even aggressively) from rhizomes and is sometimes cultivated in wildflower gardens.

Rue anemone is a common and beloved spring wildflower. It blooms March–June. It and other woodland wildflowers require a forest habitat to survive, so they depend on the oaks, hickories, maples, and other trees that surround them.

The smooth, finely divided, fernlike foliage of pale corydalis is similar to that of the related wildflower Dutchman’s breeches. But in pale corydalis, the small yellow flowers appear tubelike and lipped.

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.

Dutchman’s breeches, a common spring wildflower, is easy to identify. Note its bluish-green, fernlike leaves and its leafless stalks, from which dangle several white flowers shaped like old-fashioned knee breeches.