Arrow leaf aster
Aster urophyllus
Bergamot
Monarda fistulosa
Blue flag
iris
Iris virginica shrevei
Blue indigo
Baptisia australis
Blue vervain
Verbena hastata
Blue-eyed
grass
Sisyrinchium campestre
Bottle gentian
Gentiana andrewsii
Canada tick-trefoil
Desmodium canadense
Dense blazing
star
Liatris spicata
Dotted mint
(horsemint)
Monarda punctuata
Downy wood
mint
Blephilia ciliata
Dwarf blazing
star
Liatris cylindracea
Great blue
lobelia
Lobelia siphilitica
Hoary vervain
Verbena stricta
Illinois tick trefoil
Desmodium illinoensis
Ironweed
Vernonia fasciculata
Jacob's ladder
Polemonium reptans
Large-flowered
beardtongue
Penstemon grandiflorus
Lavender
hyssop
Agastache foeniculum
Leadplant
Amorpha canescens
Lupine
Lupinus perennis
Missouri ironweed
Vernonia missurica
Monkey flower
Mimulus ringens
New England
aster
Aster novae-angliae
Nodding wild onion
Allium cernuum
Pale purple
coneflower
Echinacea pallida
Pasque flower
Anemone patens
Prairie blazing star
Liatris pycnostachya
Prairie violet
Viola pedatifida
Purple
coneflower
Echinacea purpurea
Purple giant hyssop
Agastache
scrophulariafolia
Purple poppy
mallow
Callirhoe involucrata
Purple prairie clover
Dalea purpurea
Rough blazing star
Liatris aspera
Silk milkweed
(common)
Asclepias syriaca
Silky aster
Aster sericeus
Shooting star
Dodecatheon meadia
Sky-blue aster
Aster oolentangiensis
Slender lespedeza
Lespedeza virginica
Smooth blue aster
Aster laevis
Smooth rose
Rosa blanda
Spiderwort
Tradescantia ohiensis
Stiff aster
Aster linariifolius
Stiff gentian
Gentiana quinquefolia
Stout blue-eyed grass
Baptisia australis
Tall bellflower
Baptisia australis
Wild four o'clock
Mirabilis nyctaginea
Wild geranium
Geranium maculatum
Wild hyacinth
Camassia scilloides
Wild petunia
Ruellia humilis