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 black mustard flower cluster

    Black Mustard

    Brassica nigra
    fork and knife icon

    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 Icon

    Poisonous

    Photo of butterfly weed plant with flowers

    Butterfly Weed

    Asclepias tuberosa
    Photo of Carolina false dandelion flowerhead.

    Carolina False Dandelion

    Pyrrhopappus carolinianus
    fork and knife icon

    Edible

    Photo of Chinese yam showing leaves and bulbils

    Chinese Yam

    Dioscorea oppositifolia (sometimes called D. batatas)
    invasive icon

    Invasive

    Photo of common evening primrose, closeup of flowers.

    Common Evening Primrose

    Oenothera biennis
    fork and knife icon

    Edible

    Photo of common ground cherry flower

    Common Ground Cherry

    Physalis longifolia
    fork and knife icon

    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
    fork and knife icon

    Edible

    Photo of compass plant flowers

    Compass Plant

    Silphium laciniatum
    Photo of eastern prickly pear plant with flowers

    Eastern Prickly Pear

    Opuntia humifusa (formerly O. compressa)
    fork and knife icon

    Edible

    Photo of false garlic flowers

    False Garlic

    Nothoscordum bivalve
    Photo of a giant ragweed plant.

    Giant Ragweed

    Ambrosia trifida
    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 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 Icon

    Poisonous

    Photo of Japanese knotweed

    Japanese Knotweed

    Fallopia japonica
    invasive icon

    Invasive

    Photo of the upper portions of two Jerusalem artichoke plants.

    Jerusalem Artichoke (Sunflower Artichoke)

    Helianthus tuberosus
    fork and knife icon

    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 Icon

    Poisonous

    invasive icon

    Invasive

    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)
    exclamation mark

    Endangered

    Photo of moth mullein flowers

    Moth Mullein

    Verbascum blattaria
    Photo of mullein basal leaves

    Mullein

    Verbascum thapsus
    Photo of a prairie dock flowerhead

    Prairie Dock (Prairie Rosinweed)

    Silphium terebinthinaceum
    Photo of purple-headed sneezeweed flowerhead showing round, purplish disk.

    Purple-Headed Sneezeweed

    Helenium flexuosum
    Photo of several reed canary grass plants with flowering heads

    Reed Canary Grass

    Phalaris arundinacea
    invasive icon

    Invasive

    Photo of path rush, closeup showing drying fruits.

    Rushes

    Juncus spp. and Luzula spp.
    Photo of sawtooth sunflower flowerhead.

    Sawtooth Sunflower

    Helianthus grosseserratus
    Photo of eastern woodland sedge plant growing among leaf litter.

    Sedges

    Carex, Schoenoplectus, Scirpus, and other genera
    Photo of showy evening primrose plant with flowers

    Showy Evening Primrose

    Oenothera speciosa
    Photo of starry rosinweed flowerheads on a black background

    Starry Rosinweed

    Silphium asteriscus
    Photo of many blooming ashy sunflower plants, showing gray-green leaves.

    Sunflowers

    Helianthus spp.

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