| Taxon |
Family |
Common Name |
Photograph |
| Abutilon theophrasti Medik. |
Malvaceae |
piemarker, velvet-leaf |
|
| Agastache nepetoides (L.) Kuntze |
Lamiaceae |
catnip giant hyssop, yellow giant hyssop |
|
| Agrimonia gryposepala Wallr. |
Rosaceae |
common agrimony, tall hairy agrimony |
|
| Agrimonia parviflora Aiton |
Rosaceae |
harvest-lice, southern agrimony, swamp agrimony |
|
| Agrimonia pubescens Wallr. |
Rosaceae |
downy agrimony, soft agrimony |
|
| Agrimonia striata Michx. |
Rosaceae |
grooved agrimony, roadside agrimony |
|
| Alchemilla monticola Opiz |
Rosaceae |
hairy lady's-mantle |
|
| Alyssum alyssoides (L.) L. |
Brassicaceae |
pale alyssum, pale madwort, yellow alyssum |
|
| Amsinckia lycopsoides Lehm. |
Boraginaceae |
tarweed fiddle-neck |
|
| Anethum graveolens L. |
Apiaceae |
dill |
|
| Anthemis tinctoria L. |
Asteraceae |
golden marguerite, yellow cotula, yellow chamomile |
|
| Anthyllis vulneraria L. subsp. vulneraria |
Fabaceae |
common kidney-vetch, woundwort |
|
| Antirrhinum majus L. |
Scrophulariaceae |
common snapdragon, garden snapdragon |
|
| Asparagus officinalis L. |
Liliaceae |
asparagus, common asparagus, garden asparagus |
|
| Astragalus canadensis L. var. canadensis |
Fabaceae |
Canadian milk-vetch |
|
| Aureolaria grandiflora (Benth.) Pennell var. pulchra Pennell |
Scrophulariaceae |
large-flowered yellow false foxglove |
|
| Aureolaria pedicularia (L.) Raf. |
Scrophulariaceae |
annual false foxglove, clammy false foxglove |
|
| Aureolaria pedicularia (L.) Raf. var. ambigens (Fernald) Farw. |
Scrophulariaceae |
annual false foxglove, clammy false foxglove, fern-leaf yellow false foxglove |
|
| Aureolaria pedicularia (L.) Raf. var. intercedens Pennell |
Scrophulariaceae |
annual false foxglove, clammy false foxglove, fern-leaf yellow false foxglove |
|
| Aureolaria pedicularia (L.) Raf. var. pedicularia |
Scrophulariaceae |
annual false foxglove, clammy false foxglove, fern-leaf yellow false foxglove |
|
| Balsamita major Desf. |
Asteraceae |
costmary, mint-geranium |
|
| Baptisia bracteata Muhl. ex Elliott var. glabrescens (Larisey) Isely |
Fabaceae |
cream wild indigo, long-bracted wild indigo, plains wild indigo |
|
| Baptisia tinctoria (L.) R.Br. ex W.T.Aiton |
Fabaceae |
horsefly-weed, rattleweed, yellow wild indigo |
|
| Barbarea orthoceras Ledeb. |
Brassicaceae |
American yellow-rocket, northern winter-cress |
|
| Barbarea vulgaris R.Br. |
Brassicaceae |
garden yellow-rocket, winter-cress, yellow-rocket |
|
| Besseya bullii (Eaton) Rydb. |
Scrophulariaceae |
bull's coral-drops, kitten's-tails |
|
| Bidens aristosa (Michx.) Britton |
Asteraceae |
midwestern tickseed-sunflower, swamp marigold |
|
| Bidens cernua L. |
Asteraceae |
nodding beggar-ticks, nodding bur-marigold |
|
| Bidens comosa (A.Gray) Wiegand |
Asteraceae |
straw-stem beggar-ticks, swamp marigold, swamp tickseed |
|
| Bidens connata Muhl. ex Willd. |
Asteraceae |
purple-stem beggar-ticks, purple-stemmed tickseed |
|
| Bidens coronata (L.) Britton |
Asteraceae |
northern tickseed-sunflower, tall swamp marigold |
|
| Bidens discoidea (Torr. & A.Gray) Britton |
Asteraceae |
few-bracted beggar-ticks, swamp beggar-ticks |
|
| Bidens frondosa L. |
Asteraceae |
common beggar-ticks, devil's beggar-ticks |
|
| Bidens pilosa L. |
Asteraceae |
Spanish needles |
|
| Bidens vulgata Greene |
Asteraceae |
big devil's beggar-ticks, tall beggar-ticks |
|
| Brassica juncea (L.) Czern. |
Brassicaceae |
brown mustard, Chinese mustard, Indian mustard |
|
| Brassica napus L. |
Brassicaceae |
rape, rutabaga, turnip |
|
| Brassica nigra (L.) W.D.J.Koch |
Brassicaceae |
black mustard |
|
| Brassica rapa L. |
Brassicaceae |
field mustard, rape mustard, turnip |
|
| Calendula officinalis L. |
Asteraceae |
pot-marigold |
|
| Caltha palustris L. |
Ranunculaceae |
cowslip, marsh-marigold, yellow marsh-marigold |
|
| Calylophus serrulatus (Nutt.) P.H.Raven |
Onagraceae |
yellow evening-primrose, yellow sundrops |
|
| Caragana arborescens Lam. |
Fabaceae |
pea-tree, Siberian pea-shrub |
|
| Castilleja sessiliflora Pursh |
Scrophulariaceae |
downy yellow painted-cup, downy paintbrush, downy painted-cup |
|
| Centaurea macrocephala Muss.Puschk. ex Willd. |
Asteraceae |
big-head knapweed |
|
| Centaurea solstitialis L. |
Asteraceae |
St. Barnaby's thistle, yellow star-thistle |
|
| Chamaecrista fasciculata (Michx.) Greene |
Caesalpiniaceae |
golden cassia, locust-weed, partridge pea, sleeping-plant |
|
| Chamaesyce nutans (Lag.) Small |
Euphorbiaceae |
eye-bane, nodding spurge |
|
| Chamaesyce polygonifolia (L.) Small |
Euphorbiaceae |
seaside spurge |
|
| Chelidonium majus L. |
Papaveraceae |
greater celandine |
|