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Families: 96
Genera: 105
Species: 199 (species rank)
Total Taxa: 201 (including subsp. and var.)

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Acalypha gracilens
slender three-seeded-mercury
Agrimonia gryposepala
tall hairy agrimony
Alyssum alyssoides
yellow alyssum
Amorpha canescens
lead-plant
Argentina anserina
silver-weed
Aureolaria grandiflora var. pulchra
large-flowered yellow false foxglove
Aureolaria pedicularia
clammy false foxglove
Baptisia tinctoria
yellow wild indigo
Barbarea vulgaris
yellow-rocket
Besseya bullii
kitten's-tails
Bidens cernua
nodding bur-marigold
Bidens coronata
tall swamp marigold
Bidens vulgata
tall beggar-ticks
Brasenia schreberi
water-shield
Brassica juncea
Indian mustard
Brassica napus
Swedish turnip
Brassica nigra
black mustard
Caltha palustris
yellow marsh-marigold
Calylophus serrulatus
yellow sundrops
Castilleja sessiliflora
downy painted-cup
Chamaecrista fasciculata
sleeping-plant
Chamaesyce polygonifolia
seaside spurge
Chelidonium majus
greater celandine
Chrysosplenium americanum
American golden saxifrage
Clintonia borealis
yellow clintonia
Conopholis americana
American squawroot
Corallorhiza trifida
yellow coralroot
Coreopsis lanceolata
sand tickseed
Coreopsis palmata
stiff tickseed
Coreopsis tripteris
tall tickseed
Corydalis aurea
scrambled eggs
Crepis tectorum
narrow-leaved hawk's-beard
Crotalaria sagittalis
arrow-headed rattle-box
Cypripedium parviflorum
yellow lady's-slipper
Cypripedium parviflorum var. pubescens
large yellow lady's-slipper
Descurainia pinnata
western tansy mustard
Descurainia sophia
tansy mustard
Diervilla lonicera
northern bush-honeysuckle
Diplotaxis muralis
stinking wall-rocket
Erucastrum gallicum
dog-mustard
Erysimum capitatum var. capitatum
sand-dune wallflower
Erysimum cheiranthoides
worm-seed wallflower
Eschscholzia californica
California poppy
Euphorbia cyparissias
graveyard spurge
Euthamia gymnospermoides
viscid grass-leaved goldenrod
Galium verum
yellow spring bedstraw
Geum aleppicum
yellow avens
Gratiola aurea
yellow hedge-hyssop
Gratiola neglecta
clammy hedge-hyssop
Helianthemum canadense
long-branch frostweed
Helianthus giganteus
tall sunflower
Helianthus grosseserratus
saw-tooth sunflower
Helianthus mollis
soft sunflower
Helianthus occidentalis
western sunflower
Helianthus pauciflorus
stiff sunflower
Helianthus strumosus
rough-leaved sunflower
Helianthus tuberosus
woodland sunflower
Heliopsis helianthoides
sunflower-everlasting
Hemerocallis fulva
tawny daylily
Hieracium kalmii
northern hawkweed
Hieracium longipilum
prairie hawkweed
Hudsonia tomentosa var. tomentosa
woolly beach-heather
Hypericum kalmianum
Kalm's St. John's-wort
Hypericum majus
larger Canadian St. John's-wort
Hypericum perforatum
St. John's-wort
Hypericum punctatum
spotted St. John's-wort
Hypericum pyramidatum
great St. John's-wort
Hypoxis hirsuta
yellow star-grass
Impatiens capensis
spotted touch-me-not
Impatiens pallida
yellow touch-me-not
Inula helenium
elecampane
Iris pseudacorus
yellow water iris
Kochia scoparia
summer-cypress
Krigia biflora
false-dandelion
Krigia virginica
Virginia dwarf-dandelion
Lactuca canadensis
wild lettuce
Lactuca serriola
prickly lettuce
Lilium michiganense
Turk's-cap lily
Linaria dalmatica
Dalmatian toadflax
Linaria vulgaris
butter-and-eggs
Linum sulcatum
grooved yellow flax
Liparis loeselii
Loesel's twayblade
Lithospermum canescens
hoary puccoon
Lithospermum incisum
narrow-leaved puccoon
Lotus corniculatus
bird's-foot trefoil
Lysimachia ciliata
fringed loosestrife
Lysimachia hybrida
river loosestrife
Lysimachia lanceolata
lance-leaved loosestrife
Lysimachia nummularia
creeping jenny