| Family |
Taxon |
Common Name | Photographs |
| Aceraceae |
Acer ginnala Maxim. |
Amur maple |
|
| Aceraceae |
Acer negundo L. |
ash-leaved maple, box elder |
|
| Aceraceae |
Acer saccharinum L. |
silver maple, soft maple |
|
| Alismataceae |
Alisma subcordatum Raf. |
American water-plantain, common water-plantain, southern water-plantain |
|
| Alismataceae |
Alisma triviale Pursh |
northern water-plantain |
|
| Alismataceae |
Sagittaria cristata Engelm. |
crested arrow-head |
|
| Alismataceae |
Sagittaria latifolia Willd. |
broad-leaved arrow-head, common arrow-head, duck-potato, wapato |
|
| Amaranthaceae |
Amaranthus hybridus L. |
green amaranth, green pigweed, smooth amaranth, smooth pigweed |
|
| Anacardiaceae |
Rhus copallina L. |
dwarf sumac, flame-leaf sumac, shining sumac |
|
| Anacardiaceae |
Rhus hirta (L.) Sudw. |
staghorn sumac, velvet sumac |
|
| Anacardiaceae |
Toxicodendron vernix (L.) Kuntze |
poison sumac, swamp sumac |
|
| Apiaceae |
Angelica atropurpurea L. |
common great angelica, great angelica, purple-stem angelica |
|
| Apiaceae |
Cicuta bulbifera L. |
bulblet water-hemlock |
|
| Apiaceae |
Cicuta maculata L. |
common water-hemlock, spotted water-hemlock |
|
| Apiaceae |
Cryptotaenia canadensis (L.) DC. |
Canadian honewort, white chervil |
|
| Apiaceae |
Hydrocotyle americana L. |
American marsh pennywort, marsh pennywort |
|
| Apiaceae |
Sanicula marilandica L. |
black snakeroot, Maryland sanicle |
|
| Apiaceae |
Sium suave Walter |
hemlock water-parsnip, water-parsnip |
|
| Apocynaceae |
Apocynum androsaemifolium L. |
spreading dogbane |
|
| Apocynaceae |
Apocynum X floribundum Greene (pro sp.) |
hybrid dogbane, intermediate dogbane |
|
| Aquifoliaceae |
Ilex mucronata (L.) M.Powell, V.Savolainen & S.Andrews |
cat-berry, mountain holly |
|
| Aquifoliaceae |
Ilex verticillata (L.) A.Gray |
common winterberry |
|
| Araceae |
Arisaema triphyllum (L.) Schott subsp. triphyllum |
Indian turnip, Jack-in-the-pulpit |
|
| Araceae |
Calla palustris L. |
water-arum, wild calla |
|
| Araliaceae |
Aralia hispida Vent. |
bristly sarsaparilla |
|
| Araliaceae |
Aralia nudicaulis L. |
wild sarsaparilla |
|
| Araliaceae |
Aralia racemosa L. |
American spikenard, life-of-man |
|
| Araliaceae |
Panax trifolius L. |
dwarf ginseng, groundnut |
|
| Asclepiadaceae |
Asclepias exaltata L. |
poke milkweed, tall milkweed |
|
| Asclepiadaceae |
Asclepias incarnata L. subsp. incarnata |
swamp milkweed |
|
| Asclepiadaceae |
Asclepias tuberosa L. subsp. interior Woodson |
butterfly milkweed, butterfly-weed, orange milkweed |
|
| 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 |
Antennaria howellii Greene |
Howell's pussy-toes |
|
| Asteraceae |
Antennaria howellii Greene subsp. neodioica (Greene) R.J.Bayer |
field pussy-toes, Howell's pussy-toes |
|
| Asteraceae |
Artemisia ludoviciana Nutt. subsp. ludoviciana |
Louisiana sage-wort, western mugwort, white sage |
|
| Asteraceae |
Aster borealis (Torr. & A.Gray) Prov. |
northern bog aster, rush aster |
|
| Asteraceae |
Aster ciliolatus Lindl. |
Lindley's aster, northern heart-leaved aster |
|
| Asteraceae |
Aster dumosus L. var. strictior Torr. & A.Gray |
bushy aster, long-stalked aster, rice-button aster |
|
| Asteraceae |
Aster ericoides L. |
heath aster, squarrose white aster, white prairie aster |
|
| Asteraceae |
Aster ericoides L. var. prostratus (Kuntze) S.F.Blake |
prostrate heath aster |
|
| Asteraceae |
Aster ericoides L. X A. sericeus Vent. |
|
|
| Asteraceae |
Aster laevis L. var. laevis |
smooth aster, smooth blue aster |
|
| Asteraceae |
Aster lanceolatus Willd. |
eastern lined aster, panicled aster, white panicle aster |
|
| Asteraceae |
Aster macrophyllus L. |
big-leaved aster, large-leaved aster |
|
| Asteraceae |
Aster oolentangiensis Riddell |
azure aster, prairie heart-leaved aster, sky-blue aster |
|
| Asteraceae |
Aster sagittifolius Wedem. ex Willd. |
arrow-leaved aster |
|
| Asteraceae |
Aster sericeus Vent. |
silky aster, western silvery aster |
|
| Asteraceae |
Aster umbellatus Mill. |
flat-top aster, parasol aster, tall flat-topped white aster |
|