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 cardinal flower plants in flower

    Cardinal Flower

    Lobelia cardinalis
    Photo of Carolina false dandelion flowerhead.

    Carolina False Dandelion

    Pyrrhopappus carolinianus
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    Edible

    Photo of clasping Venus' looking glass, a blue wildflower

    Clasping Venus’ Looking Glass

    Triodanis perfoliata (formerly Specularia perfoliata)
    Photo of common evening primrose, closeup of flowers.

    Common Evening Primrose

    Oenothera biennis
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    Edible

    Photo of common ground cherry flower

    Common Ground Cherry

    Physalis longifolia
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    Edible

    Photo of common sunflower

    Common Sunflower

    Helianthus annuus
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    Edible

    Photo of common water hemlock or spotted cowbane flowers

    Common Water Hemlock

    Cicuta maculata
    Poisonous Icon

    Poisonous

    Photo of elephant's foot closeup of flowers

    Elephant’s Foot

    Elephantopus carolinianus
    Photo of Florida lettuce flower closeup with syrphid fly

    Florida Lettuce (Woodland Lettuce)

    Lactuca floridana
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    Edible

    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 hairy rose mallow flower

    Hairy Rose Mallow

    Hibiscus lasiocarpos
    Photo of hispid buttercup plant with flower

    Hispid Buttercup

    Ranunculus hispidus
    Photo of the upper portions of two Jerusalem artichoke plants.

    Jerusalem Artichoke (Sunflower Artichoke)

    Helianthus tuberosus
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    Edible

    Photo of a large-flowered gaura inflorescence

    Large-Flowered Gaura

    Oenothera filiformis (formerly Gaura longiflora, G. biennis)
    Photo of pale Indian plantain flower clusters.

    Pale Indian Plantain

    Arnoglossum atriplicifolium (also Cacalia atriplicifolia)
    No photo available

    Philadelphia Fleabane

    Erigeron philadelphicus
    Photo of purple-headed sneezeweed flowerhead showing round, purplish disk.

    Purple-Headed Sneezeweed

    Helenium flexuosum
    Photo of round-leaved groundsel plant with flower clusters

    Round-Leaved Groundsel (Round-Leaved Ragwort)

    Packera obovata (formerly Senecio obovatus)
    Photo of sawtooth sunflower flowerhead.

    Sawtooth Sunflower

    Helianthus grosseserratus
    Photo of many blooming ashy sunflower plants, showing gray-green leaves.

    Sunflowers

    Helianthus spp.
    Photo of woolly sweet cicely flower clusters

    Sweet Cicely (Anise Root)

    Osmorhiza claytonii and O. longistylis
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    Edible

    Photo of tall thistle plants with flowers

    Tall Thistle

    Cirsium altissimum
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    Edible

    Photo of water milfoil plants along the shore of a pond

    Water Milfoils

    Myriophyllum 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 white avens flower and upper stem leaves.
    Photo of white crownbeard plant with flowers

    White Crownbeard

    Verbesina virginica
    Photo of wood betony plants with flowers

    Wood Betony (Common Lousewort)

    Pedicularis canadensis
    Photo of wood nettle leaves at top of plant.

    Wood Nettle (Stinging Nettle)

    Laportea canadensis
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    Edible

    Photo of woollen breeches flower cluster

    Woollen Breeches (Great Waterleaf)

    Hydrophyllum appendiculatum
    Photo of yellow violet plant with flower

    Yellow Violet

    Viola pubescens (formerly V. pensylvanica)
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    Edible