Taxonomy and nomenclature generally follow: Gleason, H.A. and A. Cronquist. 1991. Manual of Vascular Plants of the Northeastern United States and Adjacent Canada. Second ed. The New York Botanical Garden, Bronx, N.Y. 910 pp. Based on a list compiled by Jeff Knoop, 1981; revised November 1997.
29 Families, 104 Species (98 Native Species, 6 Non-Native Species)
Angiosperms Dicotyledons
Ranunculaceae - Buttercup Family
Anemone canadensis - Canada Anemone Anemone virginiana - Thimble Flower
Fagaceae - Oak Family
Quercus macrocarpa - Bur Oak
Caryophyllaceae - Pink Family
Silene noctiflora - Night Flowering Catchfly* Dianthus armeria - Deptford Pink* Lychnis alba - White Campion* (not in Gleason and Cronquist)
Clusiaceae - St. John's Wort Family
Hypericum perforatum - Common St. John's Wort* Hypericum punctatum - Spotted St. John's Wort
Primulaceae - Ebony Family
Dodecatheon media - Shooting Star
Mimosacea Mimosa Family
Desmanthus illinoensis - Prairie Mimosa
Caesalpiniaceae Caesalpinia Family
Chaemaecrista fasiculata - Partridge Pea
Fabaceae - Pea Family
Baptisia bracteata - Creamy False Indigo Baptisia tinctoria - False Wild Indigo+ Baptisia leucantha (alba?) - White False Indigo Lupinus perennis - Wild Lupine Desmodium illinoense - Illinois Tick Trefoil Desmodium canescens - Hoary Tick Trefoil Lespedeza virginica - Slender-leaved Bush Clover Lespedeza capitata - Round-headed Bush Clover Amorpha canescens - Lead Plant Dacea purpureum - Purple Prairie Clover Dacea candidum - White Prairie Clover Amphicarpa bracteata - Hog Peanut
Onagraceae - Evening Primrose Family
Gaura biennis - Biennial Gaura
Santalaceae - Sandlewood Family Comandra umbellata - Star Toadflax
Euphorbiaceae - Spurge Family
Euphorbia corollata - Flowering Spurge
Rutaceae - Rue Family
Ptelea trifoliata - Hop Tree
Apiaceae - Carrot Family
Eryngium yuccifolium - Rattlesnake Master Zizia aurea - Golden Alexanders Thaspium trifoliatum - Purple Meadow Parsnip
Gentianaceae - Gentain Family
Sabatia angularius - Rose Pink Gentiana villosa - Sampson's Snakeroot
Asclepiadaceae - Milkweed Family
Asclepias tuberosa - Butterfly Weed Asclepias verticillata - Whorled Milkweed Asclepias syriaca - Common Milkweed
Convolvulaceae - Morning Glory Family
Ipomoea pandurata - Wild Potato Vine
Polemoniaceae - Phlox Family
Phlox glaberrimma - Smooth Phlox
Boraginaceae - Borage Family
Lithospermum canescens - Hoary Puccoon
Verbenaceae - Vervain Family
Verbena hastata - Blue Vervain
Campanulaceae - Lobelia Family
Lobelia spicata - Pale-spiked Lobelia
Lamiaceae - Mint Family
Pycnanthemum verticillatum var. pilosum - Hairy Mountain Mint Pycnanthemum virginianum - Virginia Mountain Mint Pycnanthemum tenuifolium - Narrow-leaved Mountain Mint Physotegia virginiana - Obedient Plant Monarda fistulosa - Wild Bergamot Blephilia ciliata - Downy Woodmint Linaria vulgaris - Butter and Eggs*
Scrophulariaceae - Figwort Family
Leucospora multifida - Sand Figwort Penstemon hirsutus - Hairy Beardstongue Penstemon digitalis - Fox-glove Beardstongue Veronicastrum virginicum - Culver's Root
Asteraceae - Sunflower Family Helianthus annuus - Common Sunflower Helianthus mollis - Hairy Sunflower Helianthus occidentalis - Few-leaved Sunflower Helianthus giganteus - Giant Sunflower Helianthus grosseserratus - Saw Toothed Sunflower Rudbeckia hirta - Black-eyed Susan Rudbeckia triloba - Brown-eyed Susan Echinacea purpurea - Eastern Purple Coneflower Echinacea pallida - Western Purple Coneflower Ratibida pinnata - Yellow Coneflower Heliopsis helianthoides - False Sunflower Coreopsis tripteris - Tall Tickseed Coreopsis palmata - Stiff Tickweed Silphium integrefolium - Western Rosinweed Silphium trifoliatum - Eastern Rosinweed Silphium laciniatum - Compass Plant Silphium terebinthenaceum - Prairie Dock Silphium terebinthenaceum var. lucy-brauniae - Cut-leaved Prairie Dock Parthenium integrifolium - Wild Quinine Solidago canadensis - Canada Goldenrod Solidago rigida - Stiff Goldenrod Aster laevis - Smooth Aster Aster dumosus - Rice Button Aster Aster ericoides - White Heath Aster Aster novae - angliae - New England Aster Aster multiflorus - Dense Flowered Aster (not in Gleason and Cronquist) Boltonia asteroides - Aster-like Boltonia Gnaphalium obtusifolium - Sweet Everlasting Eupatorium altissimum - Tall Boneset Liatris aspera - Rough Blazing Star Liatris pycnostachya - Prairie Blazing Star Liatris squarrosa - Scaly Blazing Star Liatris spicata - Dense Blazing Star Veronia gigantea - Aster-like Boltonia (orignally listed as V. altissima) Cirsium discolor - Old Field Thistle Prenanthes aspera - Rough White Lettuce
Angiosperms Monocotyledons
Commelinaceae - Spiderwort Family
Tradescantia ohiensis - Ohio Spiderwort
Poaceae - Grass Family
Elymus villosus - Nodding Wild Rye Sorghastrum nutans - Indian Grass Chasmantium latifolia - Broad-leaved Uniola Sporobolus asper - Rough Dropseed (under propagation)+ Spartina pectinata - Prairie Cord Grass Panicum virgatum - Switch Grass Andropogon gerardi - Big Blue Stem Schizachyrium scoparium - Little Blue Stem
Lilaceae - Lily Family
Allium vineale - Field Garlic* Allium canadense - Wild Garlic Lilium philidelphicum var. andinum - Western Wood Lily Smilacina stellata - Starry False Solomon's Seal Hypoxis hirsuta - Yellow Star Grass Agave virginica - American Aloe
Iridaceae - Iris Family Sisyrinchium albidum - White-eye Grass
Orchidaceae - Orchid Family
Spiranthes cernua - Nodding Lady Tresses
* Introduced Species - Adventive or naturalized plants of dry soil, fields and roadsides, but not prairie indicative. + Species not found on original Knoop list.