Photo of American germander flowers

    American Germander

    Teucrium canadense
    Photo of ashy sunflowers showing flowers, leaves, and stems.

    Ashy Sunflower

    Helianthus mollis
    Photo of blue vervain flower clusters in a prairie

    Blue Vervain

    Verbena hastata
    Photo of Chinese yam showing leaves and bulbils

    Chinese Yam

    Dioscorea oppositifolia (sometimes called D. batatas)
    invasive icon

    Invasive

    Photo of tall thoroughwort plant with flowers

    Common Boneset (Thoroughwort)

    Eupatorium perfoliatum
    Photo of common cinquefoil plants with flowers

    Common Cinquefoil

    Potentilla simplex
    Photo of common milkweed flower cluster

    Common Milkweed

    Asclepias syriaca
    Photo of common St. John’s-wort flower with spent flowers and fruits

    Common St. John’s-Wort

    Hypericum perforatum
    Photo of corn salad plant flower clusters showing arrangement of buds.

    Corn Salad

    Valerianella radiata
    fork and knife icon

    Edible

    Photo of dead nettle stalk with flowers

    Dead Nettle

    Lamium purpureum
    Deptfort pink blooming in an open area

    Deptford Pink

    Dianthus armeria
    Photo of dittany flowers

    Dittany

    Cunila origanoides
    fork and knife icon

    Edible

    Photo of false dragonhead plant with flowers

    False Dragonhead (Obedient Plant)

    Physostegia virginiana
    Photo of flowering spurge flowers

    Flowering Spurge

    Euphorbia corollata
    Poisonous Icon

    Poisonous

    Photo of foxglove beardtongue flowers

    Foxglove Beardtongue

    Penstemon digitalis
    Photo of a giant ragweed plant.

    Giant Ragweed

    Ambrosia trifida
    Photo of several big bluestem seed heads against a blue sky.

    Grasses

    All true grasses (species in the grass family).
    Photo of Indian hemp plant

    Indian Hemp (Dogbane)

    Apocynum cannabinum
    Poisonous Icon

    Poisonous

    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 narrow-leaved vervain plants in bloom.

    Narrow-Leaved Vervain

    Verbena simplex
    Photo of northern fog fruit flowering head

    Northern Fog Fruit

    Lippia lanceolata (formerly Phyla lanceolata)
    Photo of Ohio horsemint inflorescence

    Ohio Horsemint

    Blephilia ciliata
    fork and knife icon

    Edible

    Photo of purple loosestrife flowering stalks showing purple flowers

    Purple Loosestrife

    Lythrum salicaria
    invasive icon

    Invasive

    Photo of purple milkweed flower cluster

    Purple Milkweed

    Asclepias purpurascens
    Photo of a rose gentian flower, closeup

    Rose Gentian (Rose Pink)

    Sabatia angularis
    Photo of rose verbena, or rose vervain, flower cluster showing leaves

    Rose Verbena (Rose Vervain)

    Glandularia canadensis (formerly Verbena canadensis)
    Photo of royal catchfly flowers

    Royal Catchfly

    Silene regia
    Photo of self-heal flower head

    Self-Heal (Heal-All)

    Prunella vulgaris
    fork and knife icon

    Edible

    Photo of common gerardia plant with flowers

    Slender False Foxglove

    Agalinis tenuifolia (formerly Gerardia tenuifolia)
    Photo of slender mountain mint flowers

    Slender Mountain Mint

    Pycnanthemum tenuifolium
    fork and knife icon

    Edible

    Photo of small bluet flower showing purplish center

    Small Bluet (Tiny Bluet)

    Houstonia pusilla (H. minima; Hedyotis crassifolia)
    Photo of swamp milkweed, three plants with flower clusters.

    Swamp Milkweed

    Asclepias incarnata
    Photo of a tall thoroughwort plant in bloom.
    Photo of cut-leaved teasel showing flowerhead and joined, cuplike leaves.

    Teasels

    Dipsacus fullonum and D. laciniatus
    invasive icon

    Invasive

    Photo of white snakeroot leaves and flowers

    White Snakeroot

    Ageratina altissima (formerly Eupatorium rugosum)
    Poisonous Icon

    Poisonous

    Photo of wholeleaf rosinweed flowerhead

    Wholeleaf Rosinweed

    Silphium integrifolium
    Photo of wild bergamot or horsemint plant with lavender flowers

    Wild Bergamot

    Monarda fistulosa
    fork and knife icon

    Edible

    Photo of wild four-o'clock flower

    Wild Four-O’Clock

    Mirabilis nyctaginea
    Poisonous Icon

    Poisonous

    Photo of winged loosestrife plants and flowers

    Winged Loosestrife

    Lythrum alatum
    Photo of yellow crownbeard flowerhead.

    Yellow Crownbeard

    Verbesina helianthoides