Yellow flowers

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Photo of ashy sunflowers showing flowers, leaves, and stems.

Ashy Sunflower

Helianthus mollis

Photo of autumn sneezeweed flowerheads, closeup.

Autumn Sneezeweed

Helenium autumnale

Photo of beaked hawkweed flowers.

Beaked Hawkweed

Hieracium gronovii

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

Bird's-Foot Trefoil

Lotus corniculatus

Photo of blooming bitterweed plant shown from top.

Bitterweed (Bitter Sneezeweed)

Helenium amarum

Photo of black medick closeup of cloverlike yellow flowerhead

Black Medick

Medicago lupulina

Photo of black mustard flower cluster

Black Mustard

Brassica nigra

Edible

Photo of several black-eyed Susan flowers.

Black-Eyed Susan

Rudbeckia hirta

Photo of bushy clump of brown-eyed Susan plants.

Brown-Eyed Susan

Rudbeckia triloba

Photo of buffalo bur flower and leaves.

Buffalo Bur (Kansas Thistle)

Solanum rostratum

Poisonous

Photo of butterfly weed plant with flowers

Butterfly Weed

Asclepias tuberosa

Photo of Carolina false dandelion flowerhead.

Carolina False Dandelion

Pyrrhopappus carolinianus

Edible

Photo of several cattail flowering stalks

Cattails

Typha spp.

Edible

Photo of Chinese yam showing leaves and bulbils

Chinese Yam

Dioscorea oppositifolia (sometimes called D. batatas)

Invasive

Photo of columbine flower closeup

Columbine

Aquilegia canadensis

Poisonous

Photo of common cinquefoil plants with flowers

Common Cinquefoil

Potentilla simplex

Common dandelion flower head viewed from above

Common Dandelion

Taraxacum officinale

Edible

Photo of common evening primrose, closeup of flowers.

Common Evening Primrose

Oenothera biennis

Edible

Photo of common golden Alexanders plant with flowers

Common Golden Alexanders

Zizia aurea

Photo of common ground cherry flower

Common Ground Cherry

Physalis longifolia

Edible

Common purslane plant growing on bare, dry soil

Common Purslane

Portulaca oleracea

Edible

Photo of common St. John’s-wort flower with spent flowers and fruits

Common St. John’s-Wort

Hypericum perforatum

Photo of common sunflower

Common Sunflower

Helianthus annuus

Edible

Photo of compass plant flowers

Compass Plant

Silphium laciniatum

Photo of cup plant flowerhead.

Cup Plant (Cup Rosinweed; Carpenter's Weed)

Silphium perfoliatum

Photo of eastern prickly pear plant with flowers

Eastern Prickly Pear

Opuntia humifusa (formerly O. compressa)

Edible

Photo of false garlic flowers

False Garlic

Nothoscordum bivalve

Photo of a false loosestrife flower closeup

False Loosestrife

Ludwigia alternifolia

Photo of a giant ragweed plant.

Giant Ragweed

Ambrosia trifida

Photo of goat's rue showing flower cluster

Goat’s Rue (Hoary Pea)

Tephrosia virginiana

Photo of two golden aster flowerheads plus a few leaves.

Golden Aster (Camphorweed)

Heterotheca camporum (syn. Chrysopsis villosa var. camporum)

Photo of tall goldenrod plant with flowers

Goldenrods

Solidago spp. (23 species in Missouri)

Photo of several big bluestem seed heads against a blue sky.

Grasses

All true grasses (species in the grass family).

Photo of several grayhead prairie coneflowers with sky in background

Gray-Headed Coneflower

Ratibida pinnata

Photo of green-flowered milkweed showing flowers and leaves.

Green-Flowered Milkweed (Spider Milkweed; Ozark Milkweed)

Asclepias viridis

Photo of ground plum, top of plant, showing flowers and several leaves.

Ground Plum (Milk Vetch)

Astragalus crassicarpus (formerly A. mexicanus)

Edible

Photo of Harvey's buttercup plant with flowers

Harvey’s Buttercup

Ranunculus harveyi

Photo of hispid buttercup plant with flower

Hispid Buttercup

Ranunculus hispidus

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 horse nettle flowers and leaves

Horse Nettle

Solanum carolinense

Poisonous

Photo of Indian strawberry plant with flower

Indian Strawberry (Mock Strawberry)

Duchesnea indica (syn. Potentilla indica)

Invasive

Photo of Japanese knotweed

Japanese Knotweed

Fallopia japonica

Invasive

Photo of the upper portions of two Jerusalem artichoke plants.

Jerusalem Artichoke (Sunflower Artichoke)

Helianthus tuberosus

Edible

Photo of lance-leaved loosestrife plant with flowers

Lance-Leaved Loosestrife

Lysimachia lanceolata

Photo of leafy spurge seed heads

Leafy Spurge

Euphorbia esula

Poisonous

Invasive

Photo of long-bracted wild indigo plant with flowers

Long-Bracted Wild Indigo

Baptisia bracteata (formerly B. leucophaea)

Photo of purple meadow parsnip foliage and flowers

Meadow Parsnip

Thaspium trifoliatum

Photo of whorled milkweed flowers.

Milkweeds

Subfamily Asclepiadoideae

Photo of Missouri bladderpod flowers

Missouri Bladderpod

Physaria filiformis (formerly Lesquerella filiformis)

Endangered

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