Field Guide

The star-shaped leaves of sweet gum become even more striking in the autumn, when they turn various shades of gold, red, pink, and purple, often on the same tree — sometimes even on the same leaf!

A member of the maple family, box elder is often confused with poison ivy because its compound leaves sometimes grow in threes (though also in fives). A fast-growing tree, its winged seeds betray its relationship to other maples.

Don’t kid yourself about this invasive, exotic vine: Japanese honeysuckle is an aggressive colonizer that shades out native plants and harms natural communities. Learn how to recognize it!

Ozark witch-hazel is a large native shrub that grows along dry, rocky streambeds in southern and east-central Missouri. The yellow, ribbonlike flowers bloom as early as January. In the fall, the seeds are ejected forcefully, to a distance of up to 30 feet!

Black oak grows throughout Missouri, in upland woods, on glades, and along borders of woods and fields. It and scarlet oak were the primary colonizers of Ozark pinelands when the native pines were cleared in the early 1900s.

Shumard oak is worth knowing: it can rise to 100 feet in height and gain a trunk diameter of 5 feet, with wide-spreading, muscular boughs.

Pin oak is one of the easiest trees to recognize by its shape alone: It has a tall, straight trunk, an overall pyramidal or conical shape and, most notably, the branches on the lower third of the tree angle downward.

Northern red oak is a favorite for planting in streets and parks and is one of the most widespread and commercially important of the oaks.

Native to Europe and Asia, European, or black alder is planted widely as an ornamental. In some parts of the United States and elsewhere in the world, this species becomes weedy, even invasive. In Missouri, you are most likely to encounter it in landscaped areas, and not in the wild.