| Family |
Taxon |
Common Name | Photographs |
| Aceraceae |
Acer X freemanii E.Murray |
Freeman's maple |
|
| Aceraceae |
Acer ginnala Maxim. |
Amur maple |
|
| Aceraceae |
Acer pensylvanicum L. |
goosefoot maple, moosewood, striped maple |
|
| Alismataceae |
Alisma triviale Pursh |
northern water-plantain |
|
| Amaranthaceae |
Amaranthus blitoides S.Watson |
creeping amaranth, mat amaranth, matweed, matweed amaranth, prostratre amaranth, prostrate pigweed |
|
| Amaranthaceae |
Amaranthus tuberculatus (Moq.) J.D.Sauer |
rough-fruited amaranth, rough-fruited water-hemp, tall water-hemp |
|
| Amaranthaceae |
Celosia argentea L. |
silver cock's-comb |
|
| Amaranthaceae |
Froelichia floridana (Nutt.) Moq. |
common cotton-weed, Florida snake-cotton, plains snake-cotton |
|
| Anacardiaceae |
Rhus copallina L. |
dwarf sumac, flame-leaf sumac, shining sumac |
|
| Anacardiaceae |
Toxicodendron radicans (L.) Kuntze subsp. negundo (Greene) Gillis |
common eastern poison-ivy, poison-ivy |
|
| Apiaceae |
Berula erecta (Huds.) Coville |
cut-leaved water-parsnip, low water-parsnip |
|
| Apiaceae |
Carum carvi L. |
caraway |
|
| Apiaceae |
Conium maculatum L. |
poison-hemlock |
|
| Apiaceae |
Cryptotaenia canadensis (L.) DC. |
Canadian honewort, white chervil |
|
| Apiaceae |
Eryngium planum L. |
plains eryngo |
|
| Apiaceae |
Heracleum lanatum Michx. |
American cow-parsnip |
|
| Apiaceae |
Osmorhiza berteroi DC. |
Chilean sweet cicely, tapering sweet-root |
|
| Apiaceae |
Osmorhiza longistylis (Torr.) DC. |
anise-root, long-styled sweet cicely, long-styled sweet-root, smooth sweet cicely |
|
| Apiaceae |
Oxypolis rigidior (L.) Raf. |
common water-dropwort, stiff cowbane |
|
| Apiaceae |
Pimpinella saxifraga L. |
solid-stem burnet-saxifrage |
|
| Apiaceae |
Sanicula gregaria E.P.Bicknell |
clustered black snakeroot |
|
| Apiaceae |
Sium suave Walter |
hemlock water-parsnip, water-parsnip |
|
| Apiaceae |
Torilis japonica (Houtt.) DC. |
erect hedge-parsley, Japanese hedge-parsley |
|
| Aquifoliaceae |
Ilex verticillata (L.) A.Gray |
common winterberry |
|
| Araceae |
Calla palustris L. |
water-arum, wild calla |
|
| Araliaceae |
Aralia racemosa L. |
American spikenard, life-of-man |
|
| Araliaceae |
Panax trifolius L. |
dwarf ginseng, groundnut |
|
| Asclepiadaceae |
Asclepias amplexicaulis Sm. |
clasping milkweed, sand milkweed |
|
| Asclepiadaceae |
Asclepias exaltata L. |
poke milkweed, tall milkweed |
|
| Asclepiadaceae |
Asclepias hirtella (Pennell) Woodson |
prairie milkweed, tall green milkweed |
|
| Asclepiadaceae |
Asclepias incarnata L. subsp. incarnata |
swamp milkweed |
|
| Asclepiadaceae |
Asclepias ovalifolia Decne. |
dwarf milkweed, oval milkweed, oval-leaved milkweed |
|
| Asclepiadaceae |
Asclepias speciosa Torr. |
showy milkweed |
|
| Asclepiadaceae |
Asclepias verticillata L. |
whorled milkweed |
|
| Aspleniaceae |
Asplenium platyneuron (L.) Britton, Sterns & Poggenb. |
ebony spleenwort |
|
| Aspleniaceae |
Asplenium trichomanes L. |
maidenhair spleenwort |
|
| Asteraceae |
Achillea ptarmica L. |
sneezeweed, sneezewort |
|
| Asteraceae |
Adenocaulon bicolor Hook. |
[Excluded] American trail-plant |
|
| Asteraceae |
Ambrosia artemisiifolia L. |
annual bur-sage, common ragweed, short ragweed |
|
| Asteraceae |
Ambrosia psilostachya DC. |
perennial ragweed, western ragweed |
|
| Asteraceae |
Ambrosia trifida L. var. trifida |
giant ragweed, great ragweed, horse-cane |
|
| Asteraceae |
Antennaria plantaginifolia (L.) Richardson |
plantain pussy-toes, plantain-leaved pussy-toes, woman's-tobacco |
|
| Asteraceae |
Anthemis tinctoria L. |
golden marguerite, yellow cotula, yellow chamomile |
|
| Asteraceae |
Arctium tomentosum Mill. |
cotton burdock, hairy burdock, woolly burdock |
|
| Asteraceae |
Arnoglossum atriplicifolium (L.) H.Rob. |
pale Indian-plantain |
|
| Asteraceae |
Artemisia absinthium L. |
absinth sage-wort, absinth wormwood, absinthe, common wormwood, sage-wort |
|
| Asteraceae |
Artemisia annua L. |
annual sage-wort, sweet wormwood |
|
| Asteraceae |
Artemisia biennis Willd. |
biennial sage-wort, biennial wormwood |
|
| Asteraceae |
Artemisia campestris L. subsp. caudata (Michx.) H.M.Hall & Clem. |
field sage-wort, field wormwood |
|
| Asteraceae |
Artemisia frigida Willd. |
fringed sage-wort, prairie sagebrush, prairie sage-wort |
|