Field Guide

Wild onion is edible and is also favored by native-plant gardeners, who enjoy its showy umbels of pink flowers and tolerance of dry, rocky sites. This Ozark species blooms in summer and fall.

Rough blazing star is fairly common and scattered nearly statewide. To distinguish between Missouri’s nine species in the genus Liatris, start by noting details of the flower structure. It’s not hard when you know what to look for.

Bull thistle is a weedy introduction from Europe, found statewide. To tell it from our other thistles, note its stems with spiny-margined wings, and its leaves with the upper surface strongly roughened with stiff, spiny bristles.

Tall thistle is a native thistle that can grow to be 10 feet tall! To identify it, notice its leaves, which are unlobed (though they may be wavy or have only shallow, broad lobes), are felty-hairy beneath, and have prickles only along the edges.

White heath aster is one of Missouri's most widespread and weedy native asters. It grows in uplands, bottomlands, and nearly all habitats in between. It has a shrubby, wide-branching habit, and the stem leaves are thin and needlelike.

Large-flowered gaura is a tall plant whose white flowers turn pinkish as they age. Four petals point upward, then bend back, and 8 stamens droop downward. The flowers look something like small butterflies.

Prairie blazing star has an unbranched stalk with many densely crowded, rose-purple flowerheads. It is a signature wildflower of the tallgrass prairie.

Whorled milkweed has rounded clusters of small white flowers. The leaves are soft, threadlike, and grow in whorls from the stem. It occurs in upland prairies and fields.

Culver’s root is a tall, graceful perennial with flower clusters that look like candelabras. The white flowers are packed together in slender, brushlike spikes. The leaves are in whorls, well-spaced along the stalk.