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| scientific name | common name(s) | image gallery |
| Monarda fistulosa | Wild bergamot Beebalm | |
| Oenothera biennis | Common evening-primrose King's cure-all | |
| Oenothera rhombipetala | Diamond petal primrose Four-Point Evening Primrose Fourpoint evening-primrose Greater four-point evening-primrose | |
| Opuntia humifusa | Devil's-tongue Low prickly pear Smooth prickly pear Prickly pear | |
| Osmorhiza claytonii | Clayton's sweetroot Hairy sweet-cicely Sweet jarvil | |
| Osmunda claytoniana | Interrupted fern | |
| Ostrya virginiana | Eastern hop-hornbeam Hophornbeam Ironwood | |
| Parthenocissus quinquefolia | Virginia creeper | |
| Pascopyrum smithii | Western wheatgrass | |
| Panicum virgatum | Switchgrass Wand panic grass | |
| Penstemon digitalis | Mississippi penstemon Smooth white beardtongue Talus slope penstemon Foxglove beardtongue | |
| Penstemon grandiflorus | Large beardtongue Large-flower beardtongue Large-flowered penstemon | |
| Phlox divaricata ssp. laphamii | Lapham's phlox Blue phlox Sweet william | |
| Physocarpus opulifolius | Atlantic ninebark Common ninebark | |
| Phlox pilosa | Downy phlox Prairie phlox Fragrant phlox | |
| Physostegia virginiana | Fall obedient plant Obedient plant False dragonhead | |
| Pinus resinosa | Red pine Norway pine Canadian pine | |
| Pinus strobus | Eastern white pine Weymouth pine | |
| Platanus occidentalis | American sycamore Buttonwood Plane-tree Sycamore | |
| Polystichum acrostichoides | Christmas fern | |
| Polygonatum biflorum | Smooth Solomon's seal Great Solomon’s-seal Sealwort | |
| Populus deltoides | Eastern cottonwood Alamo Carolina poplar Necklace Poplar | |
| Podophyllum peltatum | Mayapple Indian apple Wild mandrake Pomme de mai Podophylle pelt | |
| Polemonium reptans | Greek valerian Greek-valerian Jacob's Ladder | |
| Populus tremuloides | Quaking aspen Aspen | |
| Prunus americana | American plum Wild plum | |
| Prunus serotina | Black cherry Rum cherry | |
| Prunus virginiana | Chokecherry Common chokecherry Choke cherry | |
| Pycnanthemum virginianum | Virginia mountain mint | |
| Quercus alba | White oak Northern white oak Stave Oak Ridge White Oak Forked-leaf White Oak | |
| Quercus bicolor | Swamp white oak | |
| Quercus macrocarpa | Bur oak Burr oak Savannah oak Overcup oak Prairie oak Mossy-cup oak Mossy-overcup oak Blue oak | |
| Quercus palustris | Pin oak Swamp Spanish oak | |
| Quercus rubra | Northern red oak | |
| Ratibida columnifera | Mexican hat Prairie coneflower Upright prairie coneflower Red-spike mexican-hat Long-headed coneflower Thimbleflower | |
| Ratibida pinnata | Pinnate prairie coneflower Grayhead Mexican hat Yellow coneflower Grayhead coneflower | |
| Rhus aromatica | Fragrant sumac Aromatic sumac Lemon sumac Polecat bush | |
| Rhus glabra | Smooth sumac | |
| Rhus typhina | Staghorn sumac Velvet sumac | |
| Rosa blanda | Smooth rose Early wild rose | |
| Rosa setigera var. tomentosa | Climbing rose Illinois rose | |
| Rudbeckia hirta | Black-eyed Susan Common black-eyed Susan Brown-eyed Susan | |
| Rudbeckia subtomentosa | Sweet coneflower Sweet black-eyed Susan | |
| Sanguinaria canadensis | Bloodroot | |
| Salix discolor | Pussy willow Glaucous willow | |
| Schizachyrium scoparium | Little bluestem | |
| Sisyrinchium campestre | Prairie blue-eyed grass Prairie blue-eyed-grass White-eyed grass | |
| Silphium integrifolium | Wholeleaf rosinweed Entire-leaf rosinweed | |
| Silphium laciniatum | Compassplant Compass plant | |
| Silphium perfoliatum | Cup plant | |
| Silphium terebinthinaceum | Prairie rosinweed Prairie dock | |
| Solidago nemoralis | Gray goldenrod Prairie goldenrod Old field goldenrod | |
| Sorghastrum nutans | Indiangrass Yellow indian grass | |
| Solidago speciosa | Showy goldenrod | |
| Solidago ulmifolia | Elmleaf goldenrod Elm-leaf goldenrod | |
| Spiraea alba | White meadowsweet | |
| Sporobolus heterolepis | Prairie dropseed | |
| Spartina pectinata | Prairie cordgrass Freshwater cordgrass Sloughgrass | |
| Staphylea trifolia | American bladdernut | |
| Symphoricarpos albus | Common snowberry | |
| Symphyotrichum ericoides | White heath aster Heath Aster | |
| Symphoricarpos orbiculatus | Coralberry Indian currant Buckbrush | |
| Thalictrum dasycarpum | Purple meadow-rue Meadow rue Tall meadow-rue | |
| Thalictrum dioicum | Early meadow-rue | |
| Tilia americana | American basswood American linden Lime tree Bee tree | |
| Typha latifolia | Broadleaf cattail Common cat-tail Broad-leaf cat-tail | |
| Uvularia grandiflora | Largeflower bellwort Large-flower bellwort Merrybells | |
| Uvularia sessilifolia | Spreading bellwort Straw lily Wild oats Merrybells Sessile-leaf bellwort | |
| Vernonia fasciculata | Prairie ironweed Common ironweed | |
| Verbena hastata | Swamp verbena Blue verbena Blue vervain Simpler's joy | |
| Veronicastrum virginicum | Culver's root | |
| Viburnum lentago | Nannyberry Blackhaw Sweet viburnum Sheepberry | |
| Viburnum opulus var. americanum | American cranberry bush Highbush-cranberry American cranberrybush viburnum Cranberry viburnum | |
| Viola pedata | Birdfoot violet Bird’s-foot violet Bird-foot violet | |
| Viburnum prunifolium | Blackhaw Smooth blackhaw Blackhaw viburnum Smooth blackhaw viburnum Stagbush | |
| Viola sororia | Missouri violet Common blue violet Hooded blue violet Florida violet Meadow violet | |
| Zizia aptera | Meadow zizia Heartleaf Alexanders Meadow parsnip Zizia | |
| Zizia aurea | Golden zizia Golden Alexanders | |
| scientific name | common name(s) | image gallery |