Field Guide

Wildflowers, Grasses and Other Nonwoody Plants

Showing 1 - 10 of 16 results
American, or common boneset, flower clusters and upper stem leaves
American Boneset (Common Boneset)
Eupatorium perfoliatum
American, or common boneset has small, white flowerheads in flat-topped clusters at the top of the plant. The leaves are hairy, narrowly triangular, and in opposite pairs fused around the stem.
Photo of a tall thoroughwort plant in bloom.
Tall Thoroughwort (Tall Boneset)
Eupatorium altissimum
A stout perennial that can grow to 6 feet tall, tall thoroughwort is a member of the sunflower family that has dull white flowers and distinctive leaves that are opposite, slender, very short-stalked, and with three quite noticeable veins.
Photo of starry rosinweed flowerheads on a black background
Starry Rosinweed
Silphium asteriscus
Starry rosinweed is a relatively short rosinweed that grows scattered mostly in the southern half of Missouri. It blooms May through September.
Photo of many blooming ashy sunflower plants, showing gray-green leaves.
Sunflowers
Helianthus spp.
Most people recognize sunflowers when they see them, with their bright yellow ray flowers and rather flattened center of dark disk flowers. There are 16 species of Helianthus in Missouri.
Eastern figwort flowers
Eastern Figwort (Carpenter's Square)
Scrophularia marilandica
Eastern figwort occurs statewide in rich woods, woodland borders, and bottomlands. It’s usually 2-5 feet high, has square stems and lance-shaped, toothed leaves, and bears spreading clusters of small, green scoop-shaped flowers with brown petal lobes.
Common chickweed plant in bloom
Common Chickweed
Stellaria media
Common chickweed, native to Europe, has been introduced nearly worldwide and is a familiar garden weed in Missouri. It forms spreading mats on the ground and has small flowers with 5 petals, each deeply lobed making it look like 10.
Ground ivy or creeping Charlie flowers and leaves
Ground Ivy (Creeping Charlie)
Glechoma hederacea
Ground ivy, or creeping Charlie, is a creeping, nonwoody plant that often forms loose mats. A native of Eurasia, this member of the mint family has been introduced nearly throughout the United States. It is considered a lawn and garden weed.
Cobaea beardtongue blooming at Painted Rock Conservation Area
Cobaea Beardtongue (Purple Beardtongue)
Penstemon cobaea
Cobaea beardtongue, or purple beardtongue, is probably Missouri’s showiest species of penstemon. Native to Missouri's southern Ozarks, it is grown statewide for its beauty, and because pollinators like it. It may be purple or white.
Late boneset plant in bloom, vertical image
Late Boneset (Late-Flowering Thoroughwort)
Eupatorium serotinum
Late boneset, or late-flowering thoroughwort, is a native perennial wildflower with clusters of white, fuzzy-looking flowers. It’s one of nine similar-looking species of thoroughworts in Missouri.
Photo of common boneset plant flower clusters.
Thoroughworts (Bonesets)
Eupatorium spp.
Nine white-flowering species of thoroughworts, or bonesets, have been recorded for Missouri. They have rounded flower clusters that look rather fuzzy, because each little composite flowerhead lacks petal-like ray florets.
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About Wildflowers, Grasses and Other Nonwoody Plants in Missouri

A very simple way of thinking about the green world is to divide the vascular plants into two groups: woody and nonwoody (or herbaceous). But this is an artificial division; many plant families include some species that are woody and some that are not. The diversity of nonwoody vascular plants is staggering! Think of all the ferns, grasses, sedges, lilies, peas, sunflowers, nightshades, milkweeds, mustards, mints, and mallows — weeds and wildflowers — and many more!