| Family |
Taxon |
Common Name | Photographs |
| Aceraceae |
Acer negundo L. |
ash-leaved maple, box elder |
|
| Aceraceae |
Acer negundo L. var. violaceum (Kirchn.) H.Jaeger |
box elder |
|
| Aceraceae |
Acer nigrum F.Michx. |
black maple |
|
| Aceraceae |
Acer saccharinum L. |
silver maple, soft maple |
|
| Aceraceae |
Acer saccharum Marshall var. saccharum |
hard maple, sugar maple |
|
| Apiaceae |
Conium maculatum L. |
poison-hemlock |
|
| Apiaceae |
Osmorhiza claytonii (Michx.) C.B.Clarke |
bland sweet cicely, Clayton's sweet-root, hairy sweet cicely |
|
| Apiaceae |
Sium suave Walter |
hemlock water-parsnip, water-parsnip |
|
| Apiaceae |
Zizia aurea (L.) W.D.J.Koch |
common golden alexanders, golden alexanders, golden zizia |
|
| Apocynaceae |
Apocynum sibiricum Jacq. |
clasping dogbane, Indian hemp |
|
| Araceae |
Arisaema triphyllum (L.) Schott subsp. triphyllum |
Indian turnip, Jack-in-the-pulpit |
|
| Araliaceae |
Panax quinquefolius L. |
American ginseng, ginseng |
|
| Aristolochiaceae |
Asarum canadense L. |
Canadian wild-ginger, wild-ginger |
|
| Asclepiadaceae |
Asclepias purpurascens L. |
purple milkweed |
|
| Aspleniaceae |
Asplenium rhizophyllum L. |
walking fern |
|
| Asteraceae |
Achillea millefolium L. |
common yarrow, milfoil |
|
| Asteraceae |
Achillea millefolium L. subsp. lanulosa (Nutt.) Piper |
common yarrow, milfoil |
|
| 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 |
Boltonia asteroides (L.) L'Hér. var. recognita (Fernald & Griscom) Cronquist |
false aster, white doll's-daisy |
|
| Asteraceae |
Cirsium altissimum (L.) Spreng. |
tall thistle, wood thistle |
|
| Asteraceae |
Erigeron pulchellus Michx. var. pulchellus |
Robin's-plantain |
|
| Asteraceae |
Eupatorium sessilifolium L. var. brittonianum Porter |
upland boneset, woodland boneset |
|
| Asteraceae |
Solidago canadensis L. |
Canadian goldenrod, common goldenrod |
|
| Asteraceae |
Solidago canadensis L. var. hargeri Fernald |
Canadian goldenrod, Harger's goldenrod |
|
| Asteraceae |
Solidago nemoralis Aiton |
dyer's-weed goldenrod, gray goldenrod, old-field goldenrod |
|
| Asteraceae |
Solidago nemoralis Aiton subsp. nemoralis |
dyer's-weed goldenrod, field goldenrod, gray goldenrod, old-field goldenrod |
|
| Asteraceae |
Vernonia fasciculata Michx. subsp. fasciculata |
common ironweed, prairie ironweed, smooth ironweed |
|
| Berberidaceae |
Podophyllum peltatum L. |
May-apple, wild mandrake |
|
| Betulaceae |
Carpinus caroliniana Walter subsp. virginiana (Marshall) Furlow |
American hornbeam, blue-beech, hornbeam, ironwood |
|
| Boraginaceae |
Cynoglossum officinale L. |
common hound's-tongue, gypsy-flower |
|
| Brassicaceae |
Arabis hirsuta (L.) Scop. |
hairy rock-cress |
|
| Brassicaceae |
Arabis hirsuta (L.) Scop. var. adpressipilis (M.Hopkins) Rollins |
hairy rock-cress |
|
| Brassicaceae |
Armoracia rusticana P.Gaertn., B.Mey. & Scherb. |
horseradish |
|
| Brassicaceae |
Draba reptans (Lam.) Fernald |
Carolina whitlow-grass, common whitlow-grass |
|
| Brassicaceae |
Lepidium campestre (L.) R.Br. |
fieldcress, field pepper-weed |
|
| Brassicaceae |
Nasturtium officinale R.Br. |
watercress |
|
| Brassicaceae |
Thlaspi arvense L. |
field pennycress |
|
| Callitrichaceae |
Callitriche palustris L. |
common water-starwort, vernal water-starwort |
|
| Caprifoliaceae |
Viburnum opulus L. |
cranberry viburnum, European cranberry-bush, high-bush cranberry |
|
| Caprifoliaceae |
Viburnum opulus L. subsp. trilobum (Marshall) R.T.Clausen |
American cranberry-bush, cranberry viburnum, high-bush cranberry |
|
| Caryophyllaceae |
Myosoton aquaticum (L.) Moench |
giant chickweed, water chickweed |
|
| Celastraceae |
Celastrus scandens L. |
American bittersweet, climbing bittersweet |
|
| Ceratophyllaceae |
Ceratophyllum demersum L. |
coon's-tail, hornwort |
|
| Cleomaceae |
Polanisia dodecandra (L.) DC. |
rough-seed clammy-weed |
|
| Cleomaceae |
Polanisia dodecandra (L.) DC. subsp. dodecandra |
rough-seed clammy-weed |
|