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 horseweed flowers

    Horseweed (Canada Fleabane, Hog Weed)

    Conyza canadensis (formerly Erigeron canadensis)
    Photo of Indian grass flower head in bloom

    Indian Grass

    Sorghastrum nutans
    Photo of Indian hemp plant

    Indian Hemp (Dogbane)

    Apocynum cannabinum
    Poisonous Icon

    Poisonous

    Photo of Indian paintbrush flowers

    Indian Paintbrush

    Castilleja coccinea
    Image of Johnny-jump-up.

    Johnny-Jump-Up (Field Pansy)

    Viola bicolor
    fork and knife icon

    Edible

    Photo of Johnson grass flower clusters

    Johnson Grass

    Sorghum halepense
    invasive icon

    Invasive

    Photo of Korean lespedeza plant with flowers

    Korean Lespedeza (Korean Clover)

    Kummerowia stipulacea (formerly Lespedeza stipulacea)
    Photo of lance-leaved loosestrife plant with flowers

    Lance-Leaved Loosestrife

    Lysimachia lanceolata
    Photo of a large-flowered gaura inflorescence

    Large-Flowered Gaura

    Oenothera filiformis (formerly Gaura longiflora, G. biennis)
    Photo of little bluestem mature seed head

    Little Bluestem

    Schizachyrium scoparium
    Photo of long-bracted wild indigo plant with flowers

    Long-Bracted Wild Indigo

    Baptisia bracteata (formerly B. leucophaea)
    Photo of long-leaved bluets plants with flowers

    Long-Leaved Bluets (Slender-Leaved Bluets)

    Houstonia longifolia (sometimes Hedyotis longifolia)
    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 Missouri evening primrose flower with river in distance

    Missouri Evening Primrose

    Oenothera macrocarpa (formerly O. missouriensis)
    Photo of moth mullein flowers

    Moth Mullein

    Verbascum blattaria
    Photo of mullein basal leaves

    Mullein

    Verbascum thapsus
    Photo of narrow-leaved vervain plants in bloom.

    Narrow-Leaved Vervain

    Verbena simplex
    Photo of oblong-leaved aster showing masses of purple flowerheads

    Oblong-Leaved Aster (Aromatic Aster)

    Symphyotrichum oblongifolium (formerly Aster oblongifolius)
    Photo of Ohio horsemint inflorescence

    Ohio Horsemint

    Blephilia ciliata
    fork and knife icon

    Edible

    Photo of pale purple coneflower showing white pollen among disk florets

    Pale Purple Coneflower

    Echinacea pallida
    Photo of leaf cup flower

    Pale-Flowered Leaf Cup

    Polymnia canadensis
    Photo of a pencil flower, closeup on blossom

    Pencil Flower

    Stylosanthes biflora
    No photo available

    Philadelphia Fleabane

    Erigeron philadelphicus
    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 dense stand of prairie blazing star or gayfeather at Pawnee Prairie

    Prairie Blazing Star (Gayfeather)

    Liatris pycnostachya
    fork and knife icon

    Edible

    Photo of prairie parsley flower cluster.

    Prairie Parsley

    Polytaenia nuttallii
    Photo of purple cliff brake growing from a rock crevice, with a hand propping up one of the fronds

    Purple Cliff Brake

    Pellaea atropurpurea
    Photo of purple milkweed flower cluster

    Purple Milkweed

    Asclepias purpurascens
    Photo of purple prairie clover, closeup of flowerhead

    Purple Prairie Clover

    Dalea purpurea (formerly Petalostemon purpureum)
    Photo of pussytoes showing fuzzy white flowering heads

    Pussytoes (Indian Tobacco)

    Antennaria parlinii
    Photo of a Queen Anne's lace flower cluster, seen from the top
    Photo of rose verbena, or rose vervain, flower cluster showing leaves

    Rose Verbena (Rose Vervain)

    Glandularia canadensis (formerly Verbena canadensis)
    Photo of round-leaved groundsel plant with flower clusters

    Round-Leaved Groundsel (Round-Leaved Ragwort)

    Packera obovata (formerly Senecio obovatus)
    Photo of royal catchfly flowers

    Royal Catchfly

    Silene regia
    Photo of eastern woodland sedge plant growing among leaf litter.

    Sedges

    Carex, Schoenoplectus, Scirpus, and other genera
    Photo of sensitive brier flowers

    Sensitive Briar

    Mimosa quadrivalvis (also Schrankia nuttallii)
    Photo of showy partridge pea showing flowers, buds, and leaves.

    Showy Partridge Pea

    Chamaecrista fasciculata (formerly Cassia fasciculata)
    Photo of sideoats grama, closeup on floral spikes showing orange anthers.

    Sideoats Grama

    Bouteloua curtipendula
    Photo of small bluet flower showing purplish center

    Small Bluet (Tiny Bluet)

    Houstonia pusilla (H. minima; Hedyotis crassifolia)
    Photo of smooth cliff brake showing leaves and leaflets

    Smooth Cliff Brake

    Pellaea glabella

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