Wildflowers, Grasses and Other Nonwoody Plants
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Species Types
Scientific Name
Polymnia canadensis
Description
Leaf cup is named for the leafy appendages that wrap around the stem at the bases of the opposite leaves. Part of the sunflower family, leaf cup has about 8 white ray florets surrounding yellow disk florets.
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Species Types
Scientific Name
Achillea millefolium
Description
Native to North America, Europe, and Asia, yarrow has been used for medicine and magic for millennia. This aromatic plant has fine, hairy, fernlike leaves and flat-topped clusters of little white flowers.
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Species Types
Scientific Name
Packera spp. (formerly Senecio spp.)
Description
Ragworts, or groundsels, have several common names, and separating the different species can be a little tricky. But members of genus Packera, with their bright yellow daisy-like flowers, are distinctive as a group. Seven species have been recorded in Missouri.
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Species Types
Scientific Name
Packera plattensis (formerly Senecio plattensis)
Description
Prairie ragwort is one of seven Packera species in our state. It grows in sunny, open habitats. Look for its clusters of bright yellow, daisylike flowers in May and June.
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Species Types
Scientific Name
Packera glabella (formerly Senecio glabellus)
Description
Butterweed, one of Missouri’s seven species of ragworts or groundsels, is the only one that is an annual. It grows in colonies, at times covering acres of floodplain. Stems are heavily ridged and usually inflated or hollow. It blooms April–June.
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!