Photo of green dragon plant showing flower and leaves.

    Green Dragon

    Arisaema dracontium
    Poisonous Icon

    Poisonous

    Photo of ground plum, top of plant, showing flowers and several leaves.

    Ground Plum (Milk Vetch)

    Astragalus crassicarpus (formerly A. mexicanus)
    fork and knife icon

    Edible

    Photo of hairy rose mallow flower

    Hairy Rose Mallow

    Hibiscus lasiocarpos
    Photo of hairy vetch flower clusters and leaves

    Hairy Vetch

    Vicia villosa
    Photo of Harvey's buttercup plant with flowers

    Harvey’s Buttercup

    Ranunculus harveyi
    Photo of hedge bindweed flowers

    Hedge Bindweed

    Calystegia sepium (also Convolvulus sepium)
    Photo of hedge parsley flower clusters

    Hedge Parsley

    Torilis arvensis
    Photo of henbit plants with flowers

    Henbit

    Lamium amplexicaule
    fork and knife icon

    Edible

    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 horseweed flowers

    Horseweed (Canada Fleabane, Hog Weed)

    Conyza canadensis (formerly Erigeron canadensis)
    Photo of a clump of hydrilla held in a hand

    Hydrilla

    Hydrilla verticillata
    invasive icon

    Invasive

    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
    Photo of several Indian pipe plants with flowers, rising out of leaf litter.

    Indian Pipe

    Monotropa uniflora
    Photo of Jack-in-the-pulpit plant showing foliage and flowering structure

    Jack-in-the-Pulpit

    Arisaema triphyllum
    Poisonous Icon

    Poisonous

    Photo of Jacob's ladder plant showing leaves and flowers

    Jacob’s Ladder

    Polemonium reptans
    Photo of Japanese knotweed

    Japanese Knotweed

    Fallopia japonica
    invasive icon

    Invasive

    Photo of Japanese stiltgrass

    Japanese Stiltgrass (Eulalia)

    Microstegium vimineum
    invasive icon

    Invasive

    Photo of the upper portions of two Jerusalem artichoke plants.

    Jerusalem Artichoke (Sunflower Artichoke)

    Helianthus tuberosus
    fork and knife icon

    Edible

    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 a huge mass of kudzu vines covering trees and ground

    Kudzu

    Pueraria montana
    fork and knife icon

    Edible

    invasive icon

    Invasive

    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 leafy spurge seed heads

    Leafy Spurge

    Euphorbia esula
    Poisonous Icon

    Poisonous

    invasive icon

    Invasive

    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 Mead's milkweed flower cluster and upper stem leaves

    Mead’s Milkweed

    Asclepias meadii
    exclamation mark

    Endangered

    Photo of midwestern arrowhead male flowers and buds.

    Midwestern Arrowhead

    Sagittaria brevirostra
    fork and knife icon

    Edible

    Photo of whorled milkweed flowers.

    Milkweeds

    Subfamily Asclepiadoideae
    Photo of Missouri evening primrose flower with river in distance

    Missouri Evening Primrose

    Oenothera macrocarpa (formerly O. missouriensis)
    Photo of mist flower or wild ageratum plants with flowers

    Mist Flower (Wild Ageratum; Blue Boneset)

    Conoclinium coelestinum (formerly Eupatorium coelestinum)
    Photo of moth mullein flowers

    Moth Mullein

    Verbascum blattaria
    Photo of mullein basal leaves

    Mullein

    Verbascum thapsus
    Photo of a musk thistle blooming flower head.

    Musk Thistle (Nodding Thistle)

    Carduus nutans
    invasive icon

    Invasive

    Photo of narrow-leaved vervain plants in bloom.

    Narrow-Leaved Vervain

    Verbena simplex
    Photo of New England aster plants with flowers

    New England Aster

    Symphyotrichum novae-angliae (formerly Aster novae-angliae)
    Photo of common ladies' tresses, flower stalk with spiral flower arrangement

    Nodding Ladies’ Tresses

    Spiranthes cernua
    Photo of northern fog fruit flowering head

    Northern Fog Fruit

    Lippia lanceolata (formerly Phyla lanceolata)

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