Photo of autumn sneezeweed flowerheads, closeup.

    Autumn Sneezeweed

    Helenium autumnale
    Photo of beaked hawkweed flowers.

    Beaked Hawkweed

    Hieracium gronovii
    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 butterfly weed plant with flowers

    Butterfly Weed

    Asclepias tuberosa
    Photo of combleaf yellow false foxglove showing flowers and leaves.

    Combleaf Yellow False Foxglove

    Aureolaria pectinata (formerly Gerardia pedicularia)
    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 compass plant flowers

    Compass Plant

    Silphium laciniatum
    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 several big bluestem seed heads against a blue sky.

    Grasses

    All true grasses (species in the grass family).
    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 Indian paintbrush flowers

    Indian Paintbrush

    Castilleja coccinea
    Photo of the upper portions of two Jerusalem artichoke plants.

    Jerusalem Artichoke (Sunflower Artichoke)

    Helianthus tuberosus
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    Edible

    Photo of lance-leaved loosestrife plant with flowers

    Lance-Leaved Loosestrife

    Lysimachia lanceolata
    Photo of bellwort

    Large Bellwort

    Uvularia grandiflora
    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 several pinesap plants showing multiple flowers per stalk.

    Pinesap (False Beech Drops)

    Monotropa hypopitys
    Photo of prairie alum root flower stalk with flowers

    Prairie Alum Root

    Heuchera richardsonii
    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 path rush, closeup showing drying fruits.

    Rushes

    Juncus spp. and Luzula spp.
    Photo of eastern woodland sedge plant growing among leaf litter.

    Sedges

    Carex, Schoenoplectus, Scirpus, and other genera
    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.
    Photo of wholeleaf rosinweed flowerhead

    Wholeleaf Rosinweed

    Silphium integrifolium
    Photo of wood betony plants with flowers

    Wood Betony (Common Lousewort)

    Pedicularis canadensis
    Photo of yellow crownbeard flowerhead.

    Yellow Crownbeard

    Verbesina helianthoides
    Photo of two small yellow lady’s slipper flowers

    Yellow Lady’s Slipper

    Cypripedium calceolus
    Photo of yellow star grass plant with flowers

    Yellow Star Grass

    Hypoxis hirsuta
    Photo of yellow violet plant with flower

    Yellow Violet

    Viola pubescens (formerly V. pensylvanica)
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    Edible