Field Guide

Wildflowers, Grasses and Other Nonwoody Plants

Showing 71 - 78 of 78 results
Orchid
Small White Lady’s Slipper
Cypripedium candidum
Of Missouri’s three species lady’s slipper orchids, small white lady’s slipper is the only one with white “slippers,” which are shiny and look almost like glazed porcelain. Today, it’s known from only one location in the Ozarks.
Photo of hoary puccoon closeup of flower cluster
Hoary Puccoon (Orange Puccoon)
Lithospermum canescens
Hoary puccoon's small, tubular flowers arise on spirally condensed stalks that uncoil and elongate as more flowers open toward the tip. Occurs nearly statewide in prairies, glades, pastures, roadsides, and other open areas.
Photo of Indian paintbrush flowers
Indian Paintbrush
Castilleja coccinea
The bright red of Indian paintbrush colors our native prairielands, reminding us (through its name) of the Osage, Kansa, Pawnee, and many other people who lived in these prairies before the pioneers.
Butterweed blooming at Mokane Access, April 26, 2020
Butterweed
Packera glabella (formerly Senecio glabellus)
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.
Whorled milkweed flowers.
Milkweeds
Subfamily Asclepiadoideae
Milkweeds are a group of plants that used to have their very own family. Now part of the dogbane family, they’re still a pretty distinctive group.
Vertical image closeup of sweet flag spadix
Sweet Flag (Calamus)
Acorus calamus (syn. A. calamus var. calamus)
At a glance, the upright sword-shaped leaves of sweet flag make it resemble cattails. Like them, sweet flag lives in wet soils. But the flower heads are distinctive, and details of the leaves set them apart, too.
Photo of yellow rocket flower clusters
Yellow Rocket
Barbarea vulgaris
Yellow rocket is a mustard native to Eurasia that was introduced long ago and today is found across North America. The mustard family used to be called the Cruciferae, because of the cross shape formed by the four petals.
Photo of black mustard flower cluster
Black Mustard
Brassica nigra
Next time you breeze past weedy black mustard on the highway or spot it in a fallow field, think of how important this and other mustards are to the world economy – and to your dinner table.
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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!