| Family |
Taxon |
Common Name | Photographs |
| Aceraceae |
Acer X freemanii E.Murray |
Freeman's maple |
|
| Acoraceae |
Acorus americanus (Raf.) Raf. |
sweet-flag |
|
| Alismataceae |
Sagittaria latifolia Willd. |
broad-leaved arrow-head, common arrow-head, duck-potato, wapato |
|
| Anacardiaceae |
Toxicodendron vernix (L.) Kuntze |
poison sumac, swamp sumac |
|
| Apiaceae |
Carum carvi L. |
caraway |
|
| Apiaceae |
Cicuta maculata L. |
common water-hemlock, spotted water-hemlock |
|
| Apiaceae |
Osmorhiza claytonii (Michx.) C.B.Clarke |
bland sweet cicely, Clayton's sweet-root, hairy sweet cicely |
|
| Apiaceae |
Sanicula gregaria E.P.Bicknell |
clustered black snakeroot |
|
| Apiaceae |
Sanicula marilandica L. |
black snakeroot, Maryland sanicle |
|
| Apiaceae |
Taenidia integerrima (L.) Drude |
yellow-pimpernel |
|
| Apocynaceae |
Apocynum androsaemifolium L. |
spreading dogbane |
|
| Araceae |
Arisaema dracontium (L.) Schott |
dragon-root, green dragon |
|
| Araceae |
Arisaema triphyllum (L.) Schott subsp. triphyllum |
Indian turnip, Jack-in-the-pulpit |
|
| Araceae |
Calla palustris L. |
water-arum, wild calla |
|
| Araliaceae |
Aralia nudicaulis L. |
wild sarsaparilla |
|
| Araliaceae |
Aralia racemosa L. |
American spikenard, life-of-man |
|
| Araliaceae |
Panax trifolius L. |
dwarf ginseng, groundnut |
|
| Aristolochiaceae |
Asarum canadense L. |
Canadian wild-ginger, wild-ginger |
|
| Asclepiadaceae |
Asclepias incarnata L. subsp. incarnata |
swamp milkweed |
|
| Asteraceae |
Achillea millefolium L. |
common yarrow, milfoil |
|
| Asteraceae |
Achillea millefolium L. subsp. lanulosa (Nutt.) Piper |
common yarrow, milfoil |
|
| Asteraceae |
Ambrosia trifida L. var. trifida |
giant ragweed, great ragweed, horse-cane |
|
| Asteraceae |
Antennaria neglecta Greene |
cat's-foot, field pussy-toes |
|
| 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 |
Antennaria parlinii Fernald subsp. parlinii |
Parlin's pussy-toes, plantain pussy-toes |
|
| Asteraceae |
Antennaria plantaginifolia (L.) Richardson |
plantain pussy-toes, plantain-leaved pussy-toes, woman's-tobacco |
|
| Asteraceae |
Arctium minus Bernh. |
common burdock, lesser burdock |
|
| Asteraceae |
Artemisia biennis Willd. |
biennial sage-wort, biennial wormwood |
|
| Asteraceae |
Aster borealis (Torr. & A.Gray) Prov. X A. lanceolatus Willd. var. simplex (Willd.) A.G.Jones |
|
|
| Asteraceae |
Aster cordifolius L. |
common blue heart-leaved aster, common blue wood aster |
|
| Asteraceae |
Aster ericoides L. |
heath aster, squarrose white aster, white prairie aster |
|
| Asteraceae |
Aster ericoides L. var. ericoides |
heath aster, squarrose white aster, white prairie aster |
|
| Asteraceae |
Aster ericoides L. X A. sericeus Vent. |
|
|
| Asteraceae |
Aster firmus Nees |
shining aster, shiny-leaved aster |
|
| Asteraceae |
Aster laevis L. var. laevis |
smooth aster, smooth blue aster |
|
| Asteraceae |
Aster lanceolatus Willd. X A. lateriflorus (L.) Britton |
|
|
| Asteraceae |
Aster lateriflorus (L.) Britton |
calico aster, goblet aster, side-flowering aster |
|
| Asteraceae |
Aster lateriflorus (L.) Britton var. lateriflorus |
calico aster, goblet aster, side-flowering aster |
|
| Asteraceae |
Aster lateriflorus (L.) Britton X A. ontarionis Wiegand |
|
|
| Asteraceae |
Aster lateriflorus (L.) Britton X A. oolentangiensis Riddell |
|
|
| Asteraceae |
Aster lateriflorus (L.) Britton X A. puniceus L. |
|
|
| Asteraceae |
Aster lateriflorus (L.) Britton X A. sagittifolius Wedem. ex Willd. |
|
|
| Asteraceae |
Aster macrophyllus L. |
big-leaved aster, large-leaved aster |
|
| Asteraceae |
Aster novae-angliae L. |
New England aster |
|
| Asteraceae |
Aster ontarionis Wiegand |
bottomland aster, Ontario aster |
|
| Asteraceae |
Bidens coronata (L.) Britton |
northern tickseed-sunflower, tall swamp marigold |
|
| Asteraceae |
Bidens frondosa L. |
common beggar-ticks, devil's beggar-ticks |
|
| Asteraceae |
Centaurea biebersteinii DC. |
spotted knapweed |
|
| Asteraceae |
Cirsium altissimum (L.) Spreng. |
tall thistle, wood thistle |
|