Families: 41
Genera: 105
Species: 199
Total Taxa: 205 (including subsp. and var.)
Lysimachia lanceolata
lance-leaved loosestrife
Lysimachia nummularia
creeping jenny
Lysimachia quadriflora
smooth loosestrife
Lysimachia quadrifolia
whorled yellow loosestrife
Lysimachia terrestris
swamp loosestrife
Lysimachia thyrsiflora
tufted loosestrife
Medicago lupulina
black medick
Melilotus officinalis
yellow sweet-clover
Mimulus glabratus var. jamesii
round-leaved monkey-flower
Monarda punctata var. villicaulis
horsemint
Nuphar variegata
bull-head pond-lily
Oenothera biennis
common evening-primrose
Oenothera laciniata subsp. laciniata
ragged evening-primrose
Oenothera parviflora
small-flowered evening-primrose
Oenothera perennis
small sundrops
Oenothera pilosella
prairie sundrops
Oenothera rhombipetala
long-spike evening-primrose
Oxalis dillenii
southern yellow wood-sorrel
Oxalis stricta
tall wood-sorrel
Packera aurea
heart-leaved groundsel
Packera paupercula
northern ragwort
Packera plattensis
prairie ragwort
Panax quinquefolius
ginseng
Pastinaca sativa
wild parsnip
Pedicularis canadensis
wood-betony
Pedicularis lanceolata
swamp-lousewort
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Pentaphylloides floribunda
shrubby five-fingers
Physalis heterophylla var. heterophylla
clammy ground-cherry
Physalis virginiana var. virginiana
Virginia ground-cherry
Polygonum ramosissimum
bushy knotweed
Polymnia canadensis
white-flowered leaf-cup
Portulaca oleracea
pusley
Potentilla argentea
silvery five-fingers
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Potentilla arguta
prairie cinquefoil tall cinquefoil tall potentilla
Potentilla norvegica
strawberry-weed
Potentilla recta
sulphur five-fingers
Potentilla simplex
old-field cinquefoil
Ranunculus abortivus
small-flowered buttercup
Ranunculus acris
tall buttercup
Ranunculus cymbalaria
seaside crowfoot
Ranunculus flabellaris
yellow water crowfoot
Ranunculus flammula var. reptans
spearwort buttercup
Ranunculus hispidus var. nitidus
rough buttercup
Ranunculus pensylvanicus
Pennsylvania buttercup
Ranunculus recurvatus var. recurvatus
hooked buttercup
Ranunculus repens
creeping buttercup
Ranunculus rhomboideus
prairie crowfoot
Ranunculus sceleratus
cursed crowfoot
Ratibida pinnata
pinnate prairie coneflower
Rorippa palustris
common yellow-cress
Rorippa sessiliflora
stalkless yellow-cress
Rorippa sinuata
western yellow-cress
Rorippa sylvestris
creeping yellow-cress
Rudbeckia fulgida var. speciosa
showy coneflower
Rudbeckia hirta var. pulcherrima
black-eyed Susan
Rudbeckia laciniata
wild golden-glow
Rudbeckia laciniata var. laciniata
wild golden-glow
Rudbeckia subtomentosa
sweet coneflower
Rudbeckia triloba var. triloba
three-lobed coneflower
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Sanicula gregaria
clustered black snakeroot
Sedum acre
yellow sedum
Senecio vulgaris
common groundsel
Senna hebecarpa
northern wild senna
Silene csereii
glaucous campion
Silphium integrifolium
whole-leaf rosinweed
Silphium terebinthinaceum var. terebinthinaceum
prairie rosinweed
Sinapis arvensis
charlock mustard
Sisymbrium altissimum
tall tumble mustard
Sisymbrium officinale
hedge-mustard
Solanum rostratum
buffalo-bur nightshade
Solidago caesia
wreath goldenrod
Solidago canadensis
common goldenrod
Solidago canadensis var. canadensis
common goldenrod
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Solidago canadensis var. scabra
late goldenrod
Solidago flexicaulis
zigzag goldenrod
Solidago gigantea
smooth goldenrod
Solidago juncea
early goldenrod
Solidago missouriensis
Missouri goldenrod
Solidago nemoralis
old-field goldenrod
Solidago ohioensis
Ohio goldenrod
Solidago patula var. patula
swamp goldenrod
Solidago riddellii
Riddell's goldenrod
Solidago rigida
stiff goldenrod
Solidago sciaphila
shadowy goldenrod
Solidago speciosa
showy goldenrod
Solidago uliginosa
northern bog goldenrod
Solidago ulmifolia var. ulmifolia
elm-leaved goldenrod
Sonchus arvensis
perennial sow-thistle
Taenidia integerrima
yellow-pimpernel
Tanacetum vulgare
tansy
Taraxacum officinale
common dandelion
Tephrosia virginiana
Virginia tephrosia
Tragopogon dubius
yellow salsify
Trifolium aureum
yellow hop clover
Utricularia cornuta
naked bladderwort
Utricularia intermedia
northern bladderwort
Verbascum blattaria
moth mullein
Verbascum phlomoides
orange mullein
Verbascum thapsus
giant mullein
Viola pubescens
yellow violet