| Family |
Taxon |
Common Name | Photographs |
| Berberidaceae |
Podophyllum peltatum L. |
May-apple, wild mandrake |
|
| Cleomaceae |
Polanisia dodecandra (L.) DC. |
rough-seed clammy-weed |
|
| Polemoniaceae |
Polemonium reptans L. var. reptans |
Greek-valerian, spreading Jacob's-ladder |
|
| Polygalaceae |
Polygala senega L. |
Seneca snakeroot, senega root |
|
| Liliaceae |
Polygonatum biflorum (Walter) Elliott |
giant Solomon's-seal, king Solomon's-seal, smooth Solomon's-seal, Solomon's-seal |
|
| Polygonaceae |
Polygonum achoreum S.F.Blake |
beak-seeded knotweed, leathery knotweed |
|
| Salicaceae |
Populus alba L. |
silver poplar, white poplar |
|
| Salicaceae |
Populus tremuloides Michx. |
aspen, quaking aspen |
|
| Rosaceae |
Potentilla norvegica L. |
Norwegian cinquefoil, rough cinquefoil, strawberry-weed |
|
| Rosaceae |
Prunus americana Marshall |
American plum, wild plum |
|
| Rutaceae |
Ptelea trifoliata L. subsp. trifoliata var. trifoliata |
common hop-tree, stinking-ash, wafer-ash |
|
| Lamiaceae |
Pycnanthemum virginianum (L.) T.Durand & B.D.Jacks. ex B.L.Rob. & Fernald |
common mountain mint, Virginia mountain mint |
|
| Fagaceae |
Quercus ellipsoidalis E.J.Hill |
Hill's oak, northern pin oak |
|
| Ranunculaceae |
Ranunculus abortivus L. |
little-leaf buttercup, small-flowered buttercup |
|
| Ranunculaceae |
Ranunculus hispidus Michx. |
bristly buttercup, hispid buttercup, rough buttercup |
|
| Ranunculaceae |
Ranunculus hispidus Michx. var. nitidus (Chapm.) T.Duncan |
bristly buttercup, hispid buttercup, rough buttercup |
|
| Asteraceae |
Ratibida pinnata (Vent.) Barnhart |
globular coneflower, yellow coneflower |
|
| Anacardiaceae |
Rhus glabra L. |
smooth sumac |
|
| Rosaceae |
Rosa arkansana Porter |
dwarf prairie rose, prairie rose, sunshine rose, wild prairie rose |
|
| Rosaceae |
Rosa blanda Aiton |
early wild rose, smooth rose, wild rose |
|
| Rosaceae |
Rubus X neglectus Peck |
|
|
| Asteraceae |
Rudbeckia laciniata L. |
cut-leaved coneflower, wild golden-glow |
|
| Asteraceae |
Rudbeckia laciniata L. cv. Hortensia |
golden-glow |
|
| Asteraceae |
Rudbeckia laciniata L. var. laciniata |
cut-leaved coneflower, wild golden-glow |
|
| Salicaceae |
Salix discolor Muhl. |
pussy willow |
|
| Caprifoliaceae |
Sambucus canadensis L. var. canadensis |
American elder, elderberry |
|
| Saxifragaceae |
Saxifraga pensylvanica L. |
eastern swamp saxifrage, swamp saxifrage, wild beet |
|
| Cyperaceae |
Schoenoplectus tabernaemontani (C.C.Gmel.) Palla |
great bulrush, soft-stem bulrush |
|
| Cyperaceae |
Scirpus atrovirens Willd. |
black bulrush, dark-green bulrush |
|
| Poaceae |
Setaria viridis (L.) P.Beauv. |
green bristle grass, green foxtail |
|
| Poaceae |
Setaria viridis (L.) P.Beauv. var. viridis |
green bristle grass, green foxtail |
|
| Caryophyllaceae |
Silene csereii Baumg. |
Balkan catchfly, glaucous campion |
|
| Caryophyllaceae |
Silene stellata (L.) W.T.Aiton |
starry campion, widow's-frill |
|
| Asteraceae |
Silphium integrifolium Michx. |
prairie rosinweed, whole-leaf rosinweed |
|
| Asteraceae |
Silphium laciniatum L. var. laciniatum |
compass-plant |
|
| Asteraceae |
Silphium perfoliatum L. var. perfoliatum |
cup-plant |
|
| Smilacaceae |
Smilax lasioneura Hook. |
common carrion flower, hairy carrion-flower |
|
| Solanaceae |
Solanum ptychanthum Dunal |
eastern black nightshade, West Indian nightshade |
|
| Asteraceae |
Solidago canadensis L. |
Canadian goldenrod, common goldenrod |
|
| Asteraceae |
Solidago canadensis L. var. scabra Torr. & A.Gray |
Canadian goldenrod, common goldenrod, tall goldenrod |
|
| Asteraceae |
Solidago gigantea Aiton |
giant goldenrod, late goldenrod, smooth goldenrod |
|
| Asteraceae |
Solidago juncea Aiton |
early goldenrod |
|
| Asteraceae |
Solidago nemoralis Aiton |
dyer's-weed goldenrod, gray goldenrod, old-field goldenrod |
|
| Asteraceae |
Solidago nemoralis Aiton subsp. decemflora (DC.) Brammall |
field goldenrod, old-field goldenrod |
|
| Asteraceae |
Solidago ptarmicoides (Nees) B.Boivin |
prairie goldenrod, upland white goldenrod |
|
| Asteraceae |
Solidago rigida L. |
rigid goldenrod, stiff goldenrod |
|
| Asteraceae |
Solidago rigida L. subsp. rigida |
rigid goldenrod, stiff goldenrod |
|
| Poaceae |
Spartina pectinata Link |
prairie cord grass, slough grass |
|
| Rosaceae |
Spiraea alba Du Roi var. alba |
white meadowsweet |
|
| Poaceae |
Sporobolus cryptandrus (Torr.) A.Gray |
sand drop-seed |
|