Photo of American feverfew flower cluster.

    American Feverfew

    Parthenium integrifolium
    Photo of bird's-foot trefoil, close-up of flower cluster.

    Bird’s-Foot Trefoil

    Lotus corniculatus
    Photo of black medick closeup of cloverlike yellow flowerhead

    Black Medick

    Medicago lupulina
    Photo of black mustard flower cluster

    Black Mustard

    Brassica nigra
    fork and knife icon

    Edible

    Photo of a bull thistle flowerhead.

    Bull Thistle

    Cirsium vulgare
    fork and knife icon

    Edible

    Photo of butterfly weed plant with flowers

    Butterfly Weed

    Asclepias tuberosa
    Photo of Canada thistle flowers

    Canada Thistle

    Cirsium arvense
    invasive icon

    Invasive

    Photo of common milkweed flower cluster

    Common Milkweed

    Asclepias syriaca
    Photo of elephant's foot closeup of flowers

    Elephant’s Foot

    Elephantopus carolinianus
    Photo of false Solomon's seal plant with flower cluster

    False Solomon’s Seal (False Spikenard)

    Maianthemum racemosum (formerly Smilacena racemosa)
    Photo of flowering spurge flowers

    Flowering Spurge

    Euphorbia corollata
    Poisonous Icon

    Poisonous

    Photo of goat's rue showing flower cluster

    Goat’s Rue (Hoary Pea)

    Tephrosia virginiana
    Photo of a golden seal plant with flower.

    Golden Seal

    Hydrastis canadensis
    Photo of hedge parsley flower clusters

    Hedge Parsley

    Torilis arvensis
    Photo of hoary puccoon closeup of flower cluster

    Hoary Puccoon (Orange Puccoon)

    Lithospermum canescens
    Photo of hogwort plant showing upper stem leaves and flowers.

    Hogwort (Woolly Croton)

    Croton capitatus
    Photo of horseweed flowers

    Horseweed (Canada Fleabane, Hog Weed)

    Conyza canadensis (formerly Erigeron canadensis)
    Photo of Indian paintbrush flowers

    Indian Paintbrush

    Castilleja coccinea
    Photo of a large-flowered gaura inflorescence

    Large-Flowered Gaura

    Oenothera filiformis (formerly Gaura longiflora, G. biennis)
    Photo of purple meadow parsnip foliage and flowers

    Meadow Parsnip

    Thaspium trifoliatum
    Photo of whorled milkweed flowers.

    Milkweeds

    Subfamily Asclepiadoideae
    Photo of Missouri evening primrose flower with river in distance

    Missouri Evening Primrose

    Oenothera macrocarpa (formerly O. missouriensis)
    Photo of leaf cup flower

    Pale-Flowered Leaf Cup

    Polymnia canadensis
    Photo of Miami mist flowers

    Phacelia (Miami Mist)

    Phacelia purshii
    Photo of several pinesap plants showing multiple flowers per stalk.

    Pinesap (False Beech Drops)

    Monotropa hypopitys
    Photo of prairie parsley flower cluster.

    Prairie Parsley

    Polytaenia nuttallii
    Photo of purple prairie clover, closeup of flowerhead

    Purple Prairie Clover

    Dalea purpurea (formerly Petalostemon purpureum)
    Photo of pussytoes showing fuzzy white flowering heads

    Pussytoes (Indian Tobacco)

    Antennaria parlinii
    Photo of a Queen Anne's lace flower cluster, seen from the top
    Photo of sensitive brier flowers

    Sensitive Briar

    Mimosa quadrivalvis (also Schrankia nuttallii)
    Photo of slender bush clover flowers

    Slender Bush Clover

    Lespedeza virginica
    spotted knapweed

    Spotted Knapweed

    Centaurea stoebe
    invasive icon

    Invasive

    Photo of woolly sweet cicely flower clusters

    Sweet Cicely (Anise Root)

    Osmorhiza claytonii and O. longistylis
    fork and knife icon

    Edible

    Photo of tall thistle plants with flowers

    Tall Thistle

    Cirsium altissimum
    fork and knife icon

    Edible

    Photo of tick trefoil plant with flowers

    Tick Trefoils (Sticktights; Beggar's Lice)

    Desmodium spp. (17 species in Missouri)
    Photo of western wallflower

    Western Wallflower

    Erysimum capitatum
    Photo of white crownbeard plant with flowers

    White Crownbeard

    Verbesina virginica
    Photo of white heath aster flowers

    White Heath Aster

    Symphyotrichum pilosum (formerly Aster pilosus)
    Photo of wild comfrey showing flower cluster

    Wild Comfrey

    Cynoglossum virginianum
    Poisonous Icon

    Poisonous

    Photo of wild potato vine flowers and leaves

    Wild Potato Vine

    Ipomoea pandurata
    fork and knife icon

    Edible

    Photo of wood betony plants with flowers

    Wood Betony (Common Lousewort)

    Pedicularis canadensis
    Photo of woollen breeches flower cluster

    Woollen Breeches (Great Waterleaf)

    Hydrophyllum appendiculatum
    Photo of yarrow or common milfoil flower cluster

    Yarrow (Common Milfoil)

    Achillea millefolium