Field Guide

Missouri is rich with hickory trees. Mockernut hickory stands out from the rest for its hard wood, thick-shelled fruit enclosing relatively small kernels, large and light-colored terminal buds, and tight, never shaggy, bark.

American holly is Missouri's most durable broad-leafed evergreen tree. It is best known for its bright red berries and spiny green leaves at Christmas.

Autumn olive can be found all over the state, since it was planted widely with the best of intentions. Despite its “pros,” this shrub has proven to be very invasive. It threatens native ecosystems and should not be planted.

If there’s a giant green thicket in your woods, you may have a bush honeysuckle infestation. These invasive plants are shrubby natives of Asia. In America, where they have no natural controls, they leaf out early, grow fast, spread fast, and form dense thickets that crowd out native forest plants.

Flowering dogwood is a beautiful shrub to small tree with a straggling, spreading crown. Missouri’s official state tree, it presents lovely boughs of white inflorescences in springtime forests.

Unlike its cousin poison ivy, fragrant sumac is a peasant, nontoxic plant. Note the middle leaflet of its "leaves of three": On fragrant sumac, there is no (or at most a very short) leaf stalk on that middle leaflet. Also, fragrant sumac has hairy, reddish fruits (not waxy whitish ones).

Our state flower, the hawthorn, is solidly represented in Missouri. There are about 100 different kinds of hawthorns that occupy almost every kind of soil in every part of the state. These members of the rose family are closely related to apples.

Pondberry is a colony-forming shrub that grows in swampy depressions in lowland forests. It is an Endangered species. In Missouri, only one population occurs, in southern Ripley County.

Possum haw, or deciduous holly, is the more common of two native Missouri hollies that lose their leaves each fall. This shrub or small tree is eye-catching in the fall and winter with its bright red berries.

A shrub or small tree with clusters of white flowers in the spring, and small, edible, red or yellow fruits in mid- to late summer, wild plum is a popular tree for landscaping.