Abies balsamea
Balsam Fir
Acer negundo
Ash-leaved or Manitoba Maple
Box-elder
Acer rubrum
Red Maple
Acer spicatum
Mountain Maple
Achillea millefolium
Milfoil
Yarrow
Actaea pachypoda
Doll's-eyes
White Baneberry
Actaea rubra
Red Baneberry
Agropyron repens
Quack Grass
Agrostis gigantea
Redtop
Allium tricoccum
Ramps
Wild Leek
Alnus crispa
Green Alder
Mountain Alder
Alnus rugosa
Speckled Alder
Ambrosia artemisiifolia
Common Ragweed
Ambrosia psilostachya
Western Ragweed
Ambrosia trifida
Giant Ragweed
Amelanchier bartramiana
Mountain or Northern Juneberry
Anaphalis margaritacea
Pearly Everlasting
Andromeda glaucophylla
Bog-rosemary
Anemone virginiana
Thimbleweed
Anemone canadensis
Canada Anemone
Anemone cylindrica
Thimbleweed
Anemone quinquefolia
Wood Anemone
Apocynum androsaemifolium
Spreading Dogbane
Aquilegia canadensis
Wild Columbine
Arabis glabra
Tower Mustard
Aralia hispida
Bristly Sarsaparilla
Aralia nudicaulis
Wild Sarsaparilla
Aralia racemosa
Spikenard
Arctium minus
Common Burdock
Arctostaphylos uva-ursi
Bearberry
Kinnikinick
Artemisia biennis
Biennial Wormwood
Artemisia vulgaris
Mugwort
Asarum canadense
Wild-ginger
Asclepias incarnata
Swamp Milkweed
Asclepias syriaca
Common Milkweed
Asclepias tuberosa
Butterfly-weed
Aster ciliolatus
Lindley's Aster
Aster lateriflorus
Calico Aster
Aster macrophyllus
Large- or Big-leaved Aster
Aster puniceus
Swamp or Purple-stemmed Aster
Aster umbellatus
Flat-topped Aster
Astragalus neglectus
Cooper's Milk-vetch
Bellis perennis
English Daisy
Betula papyrifera
Canoe Birch
Paper Birch
White Birch
Betula pumila
Bog Birch
Dwarf Birch
Brassica kaber
Charlock
Wild Mustard
Bromus inermis
Smooth Brome
Calla palustris
Water-arum
Wild Calla
Calystegia spithamaea
Low Bindweed
Campanula aparinoides
Marsh Bellflower
Campanula rotundifolia
Bluebell
Harebell
Caragana arborescens
Pea-tree
Ceanothus herbaceus
New Jersey Tea
Centaurea maculosa
Spotted Knapweed
Cerastium fontanum
Mouse-ear Chickweed
Chamaedaphne calyculata
Leatherleaf
Chenopodium album
Lambs-quarters
Pigweed
Chenopodium capitatum
Strawberry Blite
Chimaphila umbellata
Pipsissewa
Prince's-pine
Chrysanthemum leucanthemum
Ox-eye Daisy
Chrysosplenium americanum
Golden Saxifrage
Cirsium arvense
Canada or Field Thistle
Cirsium muticum
Swamp Thistle
Cirsium palustre
Marsh or European Swamp Thistle
Clinopodium vulgare
Dog-mint
Wild-basil
Clintonia borealis
Bluebead-lily
Corn-lily
Comandra umbellata
Bastard-toadflax
Star-toadflax
Comptonia peregrina
Sweetfern
Conyza canadensis
Horseweed
Coptis trifolia
Goldthread
Corallorhiza maculata
Spotted Coral-root
Corallorhiza striata
Striped Coral-root
Corallorhiza trifida
Early Coral-root
Coreopsis lanceolata
Cornus canadensis
Bunchberry
Dwarf Cornel
Cornus rugosa
Round-leaved Dogwood
Cornus stolonifera
Red-osier
Corydalis aurea
Golden Corydalis
Corylus americana
Hazelnut
Corylus cornuta
Beaked Hazelnut
Cryptotaenia canadensis
Honewort
Cynoglossum officinale
Hound's-tongue
Cypripedium acaule
Moccasin Flower
Pink or Stemless Lady-slipper
Cypripedium calceolus
Yellow Lady-slipper
Cypripedium reginae
Showy lady-slipper
Danthonia spicata
Oatgrass
Poverty Grass
Dentaria diphylla
Two-leaved Toothwort
Dentaria laciniata
Cut-leaved Toothwort
Dicentra canadensis
Squirrel-corn
Dicentra cucullaria
Dutchman's-breeches
Diervilla lonicera
Bush-honeysuckle
Dipsacus laciniatus
Cut-leaf Teasel
Dirca palustris
Leatherwood
Dracocephalum parviflorum
Dragonhead
Echinocystis lobata
Wild-cucumber
Elodea canadensis
Epigaea repens
Trailing-arbutus
Epilobium angustifolium
Fireweed
Great Willow-herb
Erechtites hieraciifolia
Fireweed
Erigeron annuus
Daisy Fleabane
Erigeron philadelphicus
Common or Philadelphia Fleabane
Erigeron strigosus
Daisy Fleabane
Eriophorum virginicum
Tawny Cotton-grass
Eupatorium maculatum
Joe-pye-weed
Eupatorium perfoliatum
Boneset
Eupatorium rugosum
White Snakeroot
Euphorbia esula
Leafy Spurge
Euthamia graminifolia
Flat-topped, Bushy, or Grassw-leaved
Fagus grandifolia
Beech
Fragaria vesca
Woodland Strawberry
Fraxinus nigra
Black Ash
Galium asprellum
Rough Bedstraw
Galium boreale
Northern Bedstraw
Galium mollugo
White Bedstraw
Gaultheria hispidula
Creeping-snowberry
Gentiana andrewsii
Closed or Bottle Gentian
Gentiana rubricaulis
Red-stemmed Gentian
Glyceria canadensis
Rattlesnake Grass
Glyceria striata
Fowl Manna Grass
Gnaphalium obtusifolium
Fragrant Cudweed
Gnaphalium uliginosum
Low Cudweed
Grindelia squarrosa
Gumweed
Habenaria dilatata
Bog-candle
Tall White Bog Orchid
Habenaria hookeri
Hooker's Orchid
Habenaria hyperborea
Tall Northern Bog Orchid
Habenaria obtusata
Blunt-leaf Orchid
Habenaria orbiculata
Round-leaved Orchid
Halenia deflexa
Spurred Gentian
Hamamelis virginiana
Witch-hazel
Helianthus divaricatus
Woodland Sunflower
Helianthus giganteus
Tall Sunflower
Helianthus maximilianii
Maximilian Sunflower
Helianthus tuberosus
Jerusalem-artichoke
Heliopsis helianthoides
False Sunflower
Heracleum maximum
Cow-parsnip
Hieracium aurantiacum
Devil's paintbrush
Orange Hawkweed
Hieracium kalmii
Canada Hawkweed
Hieracium piloselloides
King Devil
Yellow Hawkweed
Hippuris vulgaris
Mare's-tail
Hypericum kalmianum
Kalm's St. John's-wort
Hypericum perforatum
Common St. John's-wort
Goatweed
Klamath Weed
Hystrix patula
Bottlebrush Grass
Iris versicolor
Wild Blue Flag
Juncus bufonius
Toad Rush
Kalmia polifolia
Pale- or Bog-laurel
Lactuca biennis
Tall Blue Lettuce
Lactuca canadensis
Wild Lettuce
Laportea canadensi
Wood Nettle
Lappula squarrosa
Stickseed
Larix laricina
Larch
Tamarack
Ledum groenlandicum
Labrador-tea
Liatris aspera
Lilium philadelphicum
Wood Lily
Linaria canadensis
Blue toadflax
Linaria vulgaris
Butter-and-eggs
Linnaea borealis
Twinflower
Liparis loeselii
Fen Orchid
Loessel's or Green Twayblade
Listera cordata
Heartleaf Twayblade
Lobelia dortmanna
Water Lobelia
Lobelia kalmii
Kalm's or Brook Lobelia
Lobelia siphilitica
Great Blue Lobelia
Lobularia maritima
Sweet Alyssum
Lonicera canadensis
Fly Honeysuckle
Lonicera dioica
Glaucous Honeysuckle
Lonicera hirsuta
Hairy Honeysuckle
Maianthemum canadense
Canada Mayflower
Wild or False Lily-of-the-valley
Malaxis unifolia
Green Adder's-mouth
Matricaria discoidea
Pineapple-weed
Medicago lupulina
Black Medick
Medicago sativa
Alfalfa
Melampyrum lineare
Cow-wheat
Melilotus alba
White Sweet-clover
Melilotus officinalis
Mentha arvensis
Wild Mint
Mirabilis nyctaginea
Wild Four-o'clock
Mitchella repens
Partridge-berry
Mitella diphylla
Bishop's-cap
Monarda fistulosa
Wild-bergamot
Monotropa hypopithys
False Beech-drops
Pinesap
Muhlenbergia glomerata
Marsh Wild-timothy
Myrica gale
Sweet Gale
Najas flexilis
Nemopanthus mucronatus
Mountain Holly
Nepeta cataria
Catmint
Catnip
Orchis rotundifolia
Round-leaved Orchis
Orthilia secunda
One-sided Shinleaf
Ostrya virginiana
Hop-hornbeam
Ironwood
Panax trifolius
Dwarf Ginseng
Panicum capillare
Witch Grass
Panicum virgatum
Switch Grass
Phleum pratense
Timothy
Phlox paniculata
Perennial or Garden Phlox
Phryma leptostachya
Lopseed
Physalis virginiana
Physocarpus opulifolius
Ninebark
Physostegia virginiana
False Dragonhead
Obedient Plant
Picea glauca
White Spruce
Picea mariana
Black Spruce
Pinus banksiana
Jack Pine
Pinus resinosa
Red Pine
Pinus strobus
White pine
Plantago major
Common Plantain
Plantago rugelii
Rugel's Plantain
Polygala paucifolia
Flowering-wintergreen
Fringed Polygala
Gay-wings
Polygala senega
Seneca Snakeroot
Senega Root
Polygonum achoreum
Polygonum amphibium
Water Smartweed
Polygonum cilinode
Fringed False Buckwheat
Polygonum convolvulus
Black-bindweed
False Buckwheat
Polygonum lapathifolium
Nodding Smartweed
Willow-weed
Polygonum persicaria
Heart's-ease
Lady's-thumb
Populus balsamifera
Balsam Poplar
Hackmatack
Potamogeton filiformis
Potamogeton foliosus
Potamogeton gramineus
Potamogeton illinoensis
Potamogeton natans
Potentilla arguta
Tall or Prairie Cinquefoil
Potentilla norvegica
Rough Cinquefoil
Potentilla simplex
Common or Old-field Cinquefoil
Prenanthes alba
Prunella vulgaris
Heal-all
Self-heal
Prunus pensylvanica
Pin or Fire Cherry
Prunus serotina
Wild Black Cherry
Prunus virginiana
Choke Cherry
Pterospora andromedea
Pine-drops
Quercus macrocarpa
Bur Oak
Quercus rubra
Red Oak
Ranunculus abortivus
Small-flowered Buttercup
Ranunculus acris
Tall or Common Buttercup
Ranunculus recurvatus
Hooked Crowfoot
Rhamnus alnifolia
Alder-leaved Buckthorn
Rhamnus cathartica
Common Buckthorn
Rhus glabra
Smooth Sumac
Ribes cynosbati
Wild or Prickly Gooseberry
Ribes hudsonianum
Northern Black Currant
Ribes lacustre
Swamp Black Currant
Ribes triste
Swamp Red Currant
Rosa blanda
Wild Rose
Rubus allegheniensis
Common Blackberry
Rubus flagellaris
Northern Dewberry
Rubus hispidus
Swamp Dewberry
Rubus parviflorus
Thimbleberry
Rubus strigosus
Wild Red Raspberry
Rudbeckia hirta
Black-eyed Susan
Rumex acetosella
Sheep or Red Sorrel
Rumex crispus
Curly or Sour Dock
Sagittaria latifolia
Duck-potato
Wapato
Salix bebbiana
Beaked Willow
Bebb's Willow
Salix discolor
Pussy Willow
Salix humilis
Prairie Willow
Upland Willow
Salix lucida
Shining Willow
Salix petiolaris
Meadow Willow
Slender Willow
Sambucus racemosa
Red Elderberry
Red-berried Elder
Sanguinaria canadensis
Bloodroot
Schizachne purpurascens
False Melic
Scirpus acutus
Hardstem Bulrush
Scirpus cyperinus
Wool-grass
Scutellaria galericulata
Marsh Skullcap
Scutellaria lateriflora
Mad-dog Skullcap
Senecio aureus
Golden Ragwort
Senecio pauperculus
Northern Ragwort
Setaria viridis
Green Foxtail
Shepherdia canadensis
Soapberry
Silene antirrhina
Sleepy Catchfly
Silene pratensis
White Campion
White Cockle
Silene vulgaris
Bladder Campion
Smilacina racemosa
False Spikenard
Smilax tamnoides
Bristly Greenbrier
Solanum ptychanthum
Black Nightshade
Solidago altissima
Tall Goldenrod
Solidago canadensis
Canada Goldenrod
Solidago flexicaulis
ZigZag Goldenrod
Solidago gigantea
Late Goldenrod
Solidago hispida
Hairy Goldenrod
Solidago juncea
Early Goldenrod
Solidago uliginosa
Bog Goldenrod
Sonchus arvensis
Field or Perennial Sow-thistle
Sorbus decora
Mountain Ash
Sparganium angustifolium
Sparganium chlorocarpum
Spiraea alba
Meadowsweet
Symphoricarpos albus
Snowberry
Tanacetum vulgare
Common Tansy
Taxus canadensis
Ground-hemlock
Yew
Thalictrum dasycarpum
Purple Meadow-rue
Thuja occidentalis
Cedar
White-cedar
Toxicodendron radicans
Poison-ivy
Trientalis borealis
Star-flower
Trifolium campestre
Low Hop Clover
Trifolium hybridum
Alsike Clover
Trifolium pratense
Red Clover
Trifolium repens
White Clover
Trillium cernuum
Nodding Trillium
Trillium grandiflorum
Common Trillium
Tsuga canadensis
Hemlock
Urtica dioica
Stinging Nettle
Utricularia cornuta
Horned Bladderwort
Utricularia vulgaris
Common Bladerwort
Uvularia grandiflora
Bellwort
Vaccinium angustifolium
Low Sweet Blueberry
Vaccinium myrtilloides
Velvetleaf of Canada Blueberry
Vaccinium oxycoccos
Small Cranberry
Verbascum thapsus
Flannel Plant
Mullein
Verbena bracteata
Prostrate or Creeping Vervain
Verbena hastata
Blue Vervain
Verbena stricta
Hoary Vervain
Verbena urticifolia
White Vervain
Veronica peregrina
Purslane Speedwell
Viburnum acerifolium
Maple-leaved Viburnum
Viburnum lentago
Nannyberry
Vicia americana
American Vetch
Vicia villosa
Hairy Vetch
Viola adunca
Sand Violet
Viola blanda
Sweet White Violet
Viola canadensis
Canada Violet
Viola conspersa
Dog Violet
Viola pubescens
Yellow Violet
Viola renifolia
Kidney-leaved Violet
Waldsteinia fragarioides
Barren-strawberry
Zanthoxylum americanum
Prickly-ash