Wildflowers, Grasses and Other Nonwoody Plants
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Scientific Name
Chamaecrista fasciculata (formerly Cassia fasciculata)
Description
The interesting, bright yellow flowers of showy partridge pea are immediately recognizable. At night, the leaflets close and pull upward into a sleeping position.
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Scientific Name
Verbascum thapsus
Description
Mullein immigrated to America along with Europeans, and with them it has spread across the continent. Its fuzzy, green-gray rosettes of leaves and tall spikes of yellow flowers make it easy to identify.
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Verbascum blattaria
Description
Moth mullein is a native of Eurasia introduced to our continent in the early 1800s. Since then, it has spread across North America. It’s named because the fuzzy flower, with 2 antennalike stamens, looks something like a moth.
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Astragalus crassicarpus (formerly A. mexicanus)
Description
Ground plum is a legume that bears plumlike, edible fruits. Its short, spikelike clusters of pea flowers can be white, cream, yellow, pink, or violet.
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Ranunculus harveyi
Description
A slender little buttercup growing in rocky, dry areas with acidic soils, Harvey’s buttercup occurs mostly in southern Missouri. One key to identify it is to examine the basal and stem leaves, which are quite different.
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Stylosanthes biflora
Description
Pencil flower is small and often overlooked. It has wiry stems, long, bristly hairs, three-parted leaves, and orangish-yellow flowers.
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Solidago spp. (23 species in Missouri)
Description
There are 23 species of goldenrods in Missouri. They can be hard to identify to species, but as a group, the goldenrods are common and nearly unmistakable.
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Senna marilandica (formerly Cassia marilandica)
Description
The flowers of southern wild senna don’t look much like typical pea-family flowers, but its leaves and bean pods show the family resemblance. Look for it in moist situations, mostly south of the Missouri River.
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Dioscorea oppositifolia (sometimes called D. batatas)
Description
Similar to kudzu, Chinese yam is an aggressive vine that overtakes nearly everything within reach that stands still long enough! Learn more about this invasive plant — and please don’t plant it!
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Scientific Name
Euphorbia esula
Description
When you consider the negative effects this plant has on natural habitats, and how hard it is to control or eradicate, you almost want to rename it “leafy scourge”! This invasive plant is spreading in our state. Learn how to identify it.
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!