Photo of autumn sneezeweed flowerheads, closeup.

    Autumn Sneezeweed

    Helenium autumnale
    Photo of bushy clump of brown-eyed Susan plants.

    Brown-Eyed Susan

    Rudbeckia triloba
    Photo of Carolina false dandelion flowerhead.

    Carolina False Dandelion

    Pyrrhopappus carolinianus
    fork and knife icon

    Edible

    Photo of celandine poppy plant and flowers

    Celandine Poppy (Wood Poppy)

    Stylophorum diphyllum
    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 sunflower

    Common Sunflower

    Helianthus annuus
    fork and knife icon

    Edible

    Photo of several decurrent false asters in bloom

    Decurrent False Aster

    Boltonia decurrens
    exclamation mark

    Endangered

    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 Indian paintbrush flowers

    Indian Paintbrush

    Castilleja coccinea
    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 whorled milkweed flowers.

    Milkweeds

    Subfamily Asclepiadoideae
    Photo of pale corydalis leaves and yellow flowers

    Pale Corydalis

    Corydalis flavula
    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 large group of sericea lespedeza plants

    Sericea Lespedeza

    Lespedeza cuneata
    invasive icon

    Invasive

    Photo of sesbania flowers and foliage

    Sesbania (Coffeeweed)

    Sesbania herbacea (formerly S. exaltata)
    Poisonous Icon

    Poisonous

    invasive icon

    Invasive

    Photo of southern wild senna showing a flower cluster and a few leaflets.

    Southern Wild Senna

    Senna marilandica (formerly Cassia marilandica)
    Photo of many blooming ashy sunflower plants, showing gray-green leaves.

    Sunflowers

    Helianthus spp.
    Photo of white sweet clover flower cluster showing stalk and flowers.

    White and Yellow Sweet Clovers

    Melilotus albus and M. officinale
    invasive icon

    Invasive

    Photo of wood betony plants with flowers

    Wood Betony (Common Lousewort)

    Pedicularis canadensis
    Photo of yellow passionflower flowers.

    Yellow Passion Flower

    Passiflora lutea
    Photo of yellow wood sorrel plant showing flowers and leaves.

    Yellow Wood Sorrel

    Oxalis stricta
    fork and knife icon

    Edible