Photo of American feverfew flower cluster.

    American Feverfew

    Parthenium integrifolium
    Photo of climbing false buckwheat vines, leaves, and flowers.

    Climbing False Buckwheat (Crested Buckwheat)

    Fallopia scandens (formerly Polygonum scandens)
    Photo of tall thoroughwort plant with flowers

    Common Boneset (Thoroughwort)

    Eupatorium perfoliatum
    Deptfort pink blooming in an open area

    Deptford Pink

    Dianthus armeria
    Photo of flowering spurge flowers

    Flowering Spurge

    Euphorbia corollata
    Poisonous Icon

    Poisonous

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

    Grasses

    All true grasses (species in the grass family).
    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 a large-flowered gaura inflorescence

    Large-Flowered Gaura

    Oenothera filiformis (formerly Gaura longiflora, G. biennis)
    Photo of whorled milkweed flowers.

    Milkweeds

    Subfamily Asclepiadoideae
    Photo of moth mullein flowers

    Moth Mullein

    Verbascum blattaria
    Photo of dense stand of prairie blazing star or gayfeather at Pawnee Prairie

    Prairie Blazing Star (Gayfeather)

    Liatris pycnostachya
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    Edible

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

    Rose Verbena (Rose Vervain)

    Glandularia canadensis (formerly Verbena canadensis)
    Photo of eastern woodland sedge plant growing among leaf litter.

    Sedges

    Carex, Schoenoplectus, Scirpus, and other genera
    Photo of tall thistle plants with flowers

    Tall Thistle

    Cirsium altissimum
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    Edible

    Photo of a tall thoroughwort plant in bloom.
    Photo of white crownbeard plant with flowers

    White Crownbeard

    Verbesina virginica
    Photo of white heath aster flowers

    White Heath Aster

    Symphyotrichum pilosum (formerly Aster pilosus)
    Photo of white snakeroot leaves and flowers

    White Snakeroot

    Ageratina altissima (formerly Eupatorium rugosum)
    Poisonous Icon

    Poisonous

    Photo of wild potato vine flowers and leaves

    Wild Potato Vine

    Ipomoea pandurata
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    Edible