| Family |
Taxon |
Common Name | Photographs |
| Aceraceae |
Acer negundo L. |
ash-leaved maple, box elder |
|
| Aceraceae |
Acer negundo L. var. negundo |
box elder |
|
| Aceraceae |
Acer saccharinum L. |
silver maple, soft maple |
|
| Alismataceae |
Alisma triviale Pursh |
northern water-plantain |
|
| Alismataceae |
Sagittaria latifolia Willd. |
broad-leaved arrow-head, common arrow-head, duck-potato, wapato |
|
| Amaranthaceae |
Amaranthus retroflexus L. |
common amaranth, pigweed, redroot, rough amaranth, rough pigweed, wild-beet amaranth |
|
| Apiaceae |
Angelica atropurpurea L. |
common great angelica, great angelica, purple-stem angelica |
|
| Apiaceae |
Angelica atropurpurea L. var. occidentalis Fassett |
purple-stem angelica, western great angelica |
|
| Apiaceae |
Daucus carota L. |
Queen Anne's-lace, wild carrot |
|
| Apiaceae |
Osmorhiza longistylis (Torr.) DC. |
anise-root, long-styled sweet cicely, long-styled sweet-root, smooth sweet cicely |
|
| Apocynaceae |
Apocynum androsaemifolium L. |
spreading dogbane |
|
| Asclepiadaceae |
Asclepias incarnata L. subsp. incarnata |
swamp milkweed |
|
| Asclepiadaceae |
Asclepias syriaca L. |
common milkweed, silkweed |
|
| Asteraceae |
Achillea millefolium L. |
common yarrow, milfoil |
|
| Asteraceae |
Achillea millefolium L. subsp. lanulosa (Nutt.) Piper |
common yarrow, milfoil |
|
| Asteraceae |
Ambrosia artemisiifolia L. |
annual bur-sage, common ragweed, short ragweed |
|
| Asteraceae |
Ambrosia trifida L. var. trifida |
giant ragweed, great ragweed, horse-cane |
|
| Asteraceae |
Antennaria parlinii Fernald |
Parlin's pussy-toes, plantain pussy-toes |
|
| Asteraceae |
Antennaria parlinii Fernald subsp. fallax (Greene) R.J.Bayer & Stebbins |
Parlin's pussy-toes, plantain pussy-toes |
|
| Asteraceae |
Anthemis cotula L. |
dog-fennel, mayweed, stinking chamomile, stinking-cotula |
|
| Asteraceae |
Arctium minus Bernh. |
common burdock, lesser burdock |
|
| Asteraceae |
Aster umbellatus Mill. |
flat-top aster, parasol aster, tall flat-topped white aster |
|
| Asteraceae |
Aster umbellatus Mill. var. umbellatus |
flat-top aster, parasol aster, tall flat-topped white aster |
|
| Asteraceae |
Cirsium arvense (L.) Scop. |
Canada thistle, creeping thistle, field thistle |
|
| Asteraceae |
Cirsium discolor (Muhl. ex Willd.) Spreng. |
field thistle, pasture thistle, prairie thistle |
|
| Asteraceae |
Cirsium vulgare (Savi) Ten. |
bull thistle |
|
| Asteraceae |
Erechtites hieracifolius (L.) Raf. ex DC. var. hieracifolius |
American burn-weed, fireweed |
|
| Asteraceae |
Erigeron annuus (L.) Pers. |
annual fleabane, eastern daisy fleabane |
|
| Asteraceae |
Eupatorium rugosum Houtt. var. rugosum |
white snakeroot |
|
| Asteraceae |
Euthamia graminifolia (L.) Nutt. var. graminifolia |
common flat-topped goldenrod, grass-leaved goldenrod |
|
| Asteraceae |
Galinsoga quadriradiata Ruiz & Pav. |
common quick-weed, Peruvian-daisy, quick-weed, shaggy-soldier |
|
| Asteraceae |
Grindelia squarrosa (Pursh) Dunal |
curly-cup gum-weed, gum-plant, gum-weed |
|
| Asteraceae |
Grindelia squarrosa (Pursh) Dunal var. squarrosa |
curly-cup gum-weed, gum-plant, gum-weed |
|
| Asteraceae |
Helianthus decapetalus L. |
forest sunflower, pale sunflower, thin-leaved sunflower |
|
| Asteraceae |
Helianthus pauciflorus Nutt. |
few-leaved sunflower, stiff sunflower |
|
| Asteraceae |
Helianthus pauciflorus Nutt. subsp. subrhomboideus (Rydb.) O.Spring & E.E.Schill. |
few-leaved sunflower, stiff sunflower |
|
| Asteraceae |
Hieracium aurantiacum L. |
devil's-paintbrush, grim-the-collier, orange hawkweed, red daisy |
|
| Asteraceae |
Hieracium umbellatum L. |
narrow-leaved hawkweed, northern hawkweed |
|
| Asteraceae |
Lactuca canadensis L. |
Canada lettuce, tall lettuce, tall wild lettuce, wild lettuce |
|
| Asteraceae |
Lactuca serriola L. |
compass-plant, prickly lettuce |
|
| Asteraceae |
Liatris aspera Michx. |
lacerate blazing-star, rough blazing-star, tall gay-feather |
|
| Asteraceae |
Matricaria discoidea DC. |
pineapple-weed |
|
| Asteraceae |
Prenanthes alba L. |
lion's-foot, rattlesnake-root, white-lettuce |
|
| Asteraceae |
Ratibida pinnata (Vent.) Barnhart |
globular coneflower, yellow coneflower |
|
| Asteraceae |
Rudbeckia laciniata L. |
cut-leaved coneflower, wild golden-glow |
|
| Asteraceae |
Rudbeckia laciniata L. var. laciniata |
cut-leaved coneflower, wild golden-glow |
|
| Asteraceae |
Silphium perfoliatum L. var. perfoliatum |
cup-plant |
|
| Asteraceae |
Solidago canadensis L. |
Canadian goldenrod, common goldenrod |
|
| Asteraceae |
Solidago hispida Muhl. ex Willd. var. hispida |
hairy goldenrod |
|
| Asteraceae |
Solidago missouriensis Nutt. |
Missouri goldenrod |
|