Field Guide

Wildflowers, Grasses and Other Nonwoody Plants

Showing 1 - 8 of 8 results
Photo of garlic mustard plant with flowers
Garlic Mustard
Alliaria petiolata
Because each plant disperses a large number of seeds, garlic mustard can outcompete native vegetation for light, moisture, nutrients, soil, and space as it quickly colonizes an area.
Photo of Solomon’s seal flowers and leaves
Solomon's Seal
Polygonatum biflorum
Solomon's seal grows statewide in moist, rich earth. The greenish-white flowers dangle like little bells beneath the leaves, under the gracefully arching stems.
Photo of yellow wood sorrel plant showing flowers and leaves.
Yellow Wood Sorrel
Oxalis stricta
Yellow wood sorrel is both a garden weed and a wild edible. It has a pleasant sour taste, which is why some people call it sourgrass and add it to salads.
Photo of smooth spiderwort flowers being visited by beelike syrphid flies
Smooth Spiderwort
Tradescantia ohiensis
Smooth spiderwort is the most common and widely distributed of Missouri's spiderworts. It has slender, straight or zigzag stems. The long, narrow leaves are folded lengthwise and attach to the stem in a thick node. The 3 petals of the triangular flower are blue, rose, purple, lavender, or white.
Photo of common dayflower flower and buds.
Common Dayflower
Commelina communis
The flowers of dayflower are truly blue, and they have only two conspicuous petals. A fast-growing, sprawling, but shallow-rooted weed, this introduced species commonly annoys gardeners.
Photo of yellow violet plant with flower
Yellow Violet
Viola pubescens (formerly V. pensylvanica)
The yellow violet is Missouri's only all-yellow violet. This native wildflower is less common than violet violets. Look for it in low woods, rich slopes, and wooded floodplains.
Photo of common violet plant with flowers
Violets
Viola spp.
Violets, as a group, are fairly easy to identify, with their colorful five-petaled “faces” so welcome in springtime. Missouri has 17 species, and some are confusingly similar. This page introduces them as a group.
Pale or cream violet, Viola striata, closeup of flower
Pale Violet (Cream Violet)
Viola striata
Pale violet, or cream violet, is Missouri’s only white-flowering violet that produces true aboveground stems. It is scattered to common in the Ozarks, Ozark border, and Bootheel lowlands and uncommon or absent elsewhere in the state.
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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!