Field Guide

Mullein immigrated to America along with Europeans, and with them it has spread across the continent. Its fuzzy, green-gray rosettes of leaves and tall spikes of yellow flowers make it easy to identify.

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.

A low-growing wildflower that can colonize large areas along roadsides, showy evening primrose bears pink or white flowers that seem too large for the vegetation that supports them.

Hispid buttercup is a densely hairy plant with showy yellow flowers. It is found mostly in the southern half of Missouri, usually in moist locations.

The small, cloverlike flowering heads and trifoliate leaves of black medick are clues that this plant is in the Fabaceae, the bean or pea family. An introduced, weedy species, it is closely related to alfalfa.

A big river floodplain species, decurrent false aster has declined as wetlands have been drained and converted to agricultural crop production.

Ground plum is a legume that bears plumlike, edible fruits. Its short, spikelike clusters of pea flowers can be white, cream, yellow, pink, or violet.

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.

Common cinquefoil, or five-finger, is named for its leaves, which are divided into five fingerlike leaflets. One of seven cinquefoils in Missouri, it blooms from April to June and is scattered nearly statewide.

There are nearly 20 species in the genus Ranunculus in Missouri. Identify early buttercup by its early blooming time, its distinctively shaped, usually hairy leaves, and its preference for open woods, glades, or prairies.