Wildflowers, Grasses and Other Nonwoody Plants
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Species Types
Scientific Name
Allium stellatum
Description
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.
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Species Types
Scientific Name
Centaurea stoebe
Description
Spotted knapweed is an invasive plant that outcompetes native communities, takes over pastureland, and even beats back invasive sericea lespedeza! It has arrived in our state. Let’s prevent its spread.
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Species Types
Scientific Name
Cirsium vulgare
Description
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.
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Species Types
Scientific Name
Cirsium altissimum
Description
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.
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Species Types
Scientific Name
Symphyotrichum pilosum (formerly Aster pilosus)
Description
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.
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Species Types
Scientific Name
Oenothera filiformis (formerly Gaura longiflora, G. biennis)
Description
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.
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Species Types
Scientific Name
Asclepias verticillata
Description
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.
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Species Types
Scientific Name
Liatris spp.
Description
Missouri boasts nine native species of blazing stars, or gayfeathers, in genus Liatris. These showy, upright, unbranching spikes of magenta-pink wildflowers bloom in sunny habitats.
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Species Types
Scientific Name
Liatris cylindracea
Description
Cylindrical blazing star is one of several Missouri native species of blazing stars, or gayfeathers. It is widely scattered in the Ozarks and eastern Missouri. Identify it by its bracts, which are pressed against the base of the flowerhead, accentuating its cylindrical look.
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Species Types
Scientific Name
Liatris squarrosa (syn. L. hirsuta, in part)
Description
Scaly blazing star is one of several Missouri native species of blazing stars, or gayfeathers. It is scattered nearly statewide. Identify it by its long-pointed flowerhead bracts that spread or curl sharply away.
See Also
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!