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Ontario - ON
a province of Canada
Species Name
▲
Aliases
▲
Abies balsamea
balsam fir
Abutilon theophrasti
Acalypha rhomboidea
Acer campestre
Acer negundo
Box elder, Ashleaf Maple
Acer nigrum
Acer pseudoplatanus
Sycamore Maple
Acer rubrum
Red maple
Acer saccharinum
Silver maple, Acer dasycarpum
Acer saccharum
Sugar maple
Acer spicatum
Actaea pachypoda
White baneberry
Aesculus hippocastanum
Horse chestnut
Alliaria petiolata
Garlic Mustard
Alnus alnobetula
Alnus glutinosa
Alnus incana
Amaranthus blitoides
Amaranthus palmeri
Palmer Amaranth
Amaranthus spinosus
Ambrosia artemisiifolia
Ambrosia psilostachya
Ambrosia trifida
Giant ragweed
Amelanchier laevis
Amorpha canescens
Amorpha fruticosa
Anaphalis ssp
Angelica venenosa
Apocynum androsaemifolium
Apocynum cannabinum
Arctostaphylos uva-ursi
Bearberry
Aristida sp
Aristolochia macrophylla
Aristolochia sipho
Artemisia campestris
Field Sagewort, Artemisia caudata, Artemisia forwoodii
Artemisia dracunculus
Tarragon
Artemisia frigida
Prairie Sagewort
Artemisia ludoviciana
White Sagebrush, western mugwort, Artemisia gnaphalodes
Artemisia tilesii
Artemisia vulgaris
Common Wormwood, Common Mugwort
Arundo donax
Asclepias syriaca
Common milkweed
Asimina triloba
Aster alpinus
alpine aster
Betula alleghaniensis
Betula cordifolia
Betula lenta
Betula neoalaskana
Betula occidentalis
Betula papyrifera
Betula pendula
Betula populifolia
Bidens connata
Bidens frondosa
Devil's Beggartick
Bidens pilosa
Boehmeria cylindrica
Smallspike False Nettle
Brassica napus
Rapeseed
Brassica nigra
Bromus inermis
Buxus sempervirens
Calystegia sp
Campsis radicans
Trumpet vine
Cannabis sativa
Cardamine diphylla
Cardamine sp
Carex praegracilis
Carex vesicaria
Carya cordiformis
Bitternut Hickory, Carya amara
Carya glabra
Carya porcina, Pignut Hickory
Carya laciniosa
Shellbark Hickory
Carya ovata
Shagbark Hickory
Castanea dentata
American Chestnut
Catalpa bignonioides
Ceanothus americanus
Celastrus scandens
Celticecis pilosa
Celtis occidentalis
Common hackberry
Celtis tenuifolia
Dwarf hackberry
Centaurea cyanus
Garden Cornflower
Centaurea diffusa
Whtie knapweed
Centaurea jacea
Brownray Knapweed
Centaurea montana
Perennial Cornflower, Mountain Knapweed
Centaurea nigra
Lesser Knapweed
Centaurea nigrescens
Tyrol knapweed
Centaurea solstitialis
Yellow Star-Thistle
Centaurea stoebe
Spotted Knapweed
Chaenomeles lagenaria
Chaenomeles speciosa, Chinese Flowering Quince
Chamaedaphne calyculata
Leatherleaf
Chamaenerion angustifolium
Epilobium angustifolium
Chimaphila maculata
Spotted wintergreen
Chondrilla juncea
Cichorium intybus
Cirsium arvense
Canada thistle
Cirsium vulgare
Bull Thistle
Claytonia virginica
Clematis virginiana
Cleomella serrulata
Collinsonia canadensis
Citronella Horse-balm
Comandra umbellata
Comptonia peregrina
Myrica peregrina, Sweet Fern, Myrica aspleniifolia
Conoclinium coelestinum
Coreopsis tripteris
Cornus alternifolia
Alternateleaf Dogwood
Cornus drummondii
Cornus florida
Cornus racemosa
Cornus sericea
Cornus stolonifera
Corylus americana
Corylus avellana
Crataegus calpodendron
Crataegus douglasii
Crataegus mollis
Crataegus phaenopyrum
Washington Hawthorn
Crataegus punctata
Cucurbita spp
Cuscuta campestris
Cydonia oblonga
Dalea candida
Dichanthelium latifolium
Dichanthelium oligosanthes
Dichanthelium sp
Diervilla lonicera
Dioscorea villosa
Disholcaspis persimilis (agamic)
Holcaspis persimilis, Adleria persimilis
Distichlis spicata
Doellingeria umbellata
Doellingeria pubens, Aster umbellatus, flat-topped aster, Aster pubentior
Drymocallis arguta
Potentilla arguta
Dysphania ambrosioides
Chenopodium ambrosioides
Echinacea purpurea
Purple coneflower
Elaeagnus commutata
Erechtites hieraciifolius
American burnweed
Erigeron canadensis
Conyza canadensis
Erigeron strigosus
Daisy Fleabane
Euphorbia corollata
Euphorbia cyparissias
Eurybia divaricata
Aster claytoni, Aster divaricatus, white wood aster
Eurybia macrophylla
Aster macrophyllus, big-leaved aster
Eurybia radula
low rough aster, Aster radula
Eurybia schreberi
Schreber's aster, Aster schreberi
Euthamia caroliniana
Euthamia graminifolia
Fagus grandifolia
American Beech
Forsythia x intermedia
Border Forsythia
Frangula alnus
Fraxinus americana
American Ash, White Ash
Fraxinus excelsior
European Ash
Fraxinus nigra
Black Ash
Fraxinus pennsylvanica
Green Ash, Red Ash
Galium asprellum
Gaultheria hispidula
Gaylussacia baccata
Black Huckleberry
Geranium carolinianum
Geranium dissectum
Geranium pratense
Geranium pusillum
Geranium sanguineum
Glechoma hederacea
Glecoma hederacea, Ground Ivy
Gleditsia triacanthos
Honey Locust
Gnaphalium sp
Grindelia hirsutula
Grindelia nana, Grindelia robusta
Grindelia squarrosa
Curlycup Gumweed
Hamamelis virginiana
Helenium autumnale
Common Sneezeweed
Helianthus annuus
Common sunflower
Helianthus divaricatus
Helianthus giganteus
Giant Sunflower
Helianthus hirsutus
Helianthus laetiflorus
Helianthus mollis
Helianthus nuttallii
Helianthus pauciflorus
Helianthus petiolaris
Helianthus strumosus
Helianthus tuberosus
Jerusalem artichoke
Hemerocallis fulva
Heterotheca villosa
Hairy False Goldenaster
Hieracium gronovii
Hieracium scabrum
Hieracium umbellatum
Canada Hawkweed
Hippophae rhamnoides
Humulus lupulus
Hypericum fraseri
Fraser's Marsh St. John's-Wort
Hypericum kalmianum
Kalm's St. John's-Wort
Hypericum virginicum
Hypochaeris radicata
Ilex mucronata
Nemopanthus mucronatus, Mountain holly
Ilex verticillata
Impatiens capensis
Impatiens fulva
Impatiens pallida
Ipomoea sp
Juglans cinerea
Butternut
Juglans nigra
Black walnut
Juglans regia
Juncus canadensis
Juncus spp
Juniperus horizontalis
Lactuca canadensis
Lactuca elongata, Canada Wild Lettuce
Lactuca floridana
Lactuca villosa
Laportea canadensis
Stinging Nettle, Wood Nettle
Larix laricina
Tamarack
Lepidium draba
Lepidium sp
Lespedeza capitata
Lindera benzoin
Northern Spicebush
Liriodendron tulipifera
Yellow Poplar, Tulip Poplar, Tuliptree
Lonicera involucrata
, Twinberry honeysuckle
Lonicera sp
Lonicera tatarica
Tartarian honeysuckle
Lycium barbarum
Lycium chinense
Lycopus americanus
American Bugleweed
Lysimachia terrestris
Maianthemum canadense
Maianthemum racemosum
Matteuccia struthiopteris
Mentha arvensis
Mirabilis nyctaginea
Muhlenbergia cuspidata
Muhlenbergia mexicana
Muhlenbergia spp
Myrica gale
Sweet gale
Nabalus altissimus
Nasturtium sp
Neolasioptera portulacae
Nepeta cataria
Nyssa sylvatica
Black Tupelo
Oenothera gaura
Ostrya virginiana
American Hophornbeam
Packera aurea
Golden ragwort
Packera obovata
Panicum virgatum
Switchgrass
Parthenocissus quinquefolia
Virginia creeper
Penstemon hirsutus
Phoradendron macrophyllum
Phragmites australis
Physocarpus opulifolius
Common Ninebark
Picea abies
Norway Spruce
Picea glauca
White Spruce
Picea mariana
Black Spruce
Picea pungens
Blue Spruce
Picea rubens
Red Spruce
Pilea pumila
Pilosella officinarum
Pinus banksiana
Jack Pine
Pinus mugo
Mountain Pine
Pinus nigra
Austrian Pine, Black Pine
Pinus resinosa
Red Pine
Pinus rigida
Pitch Pine, Diploxylon rigida
Pinus strobus
Eastern White Pine
Pinus virginiana
Virginia Pine
Plantago lanceolata
Platanus occidentalis
American Sycamore
Polygonatum biflorum
Polygonum aviculare
Polygonum pensylvanicum
Populus alba
White Poplar
Populus balsamifera
Balsam Poplar
Populus deltoides
Eastern Cottonwood
Populus grandidentata
Bigtooth Aspen
Populus heterophylla
Populus tremula
European Aspen
Populus tremuloides
Quaking Aspen, Trembling Aspen
Portulaca oleracea
Potentilla canadensis
Potentilla simplex
Prunus americana
American Plum
Prunus avium
Prunus cerasifera
Prunus cerasus
Prunus domestica
Prunus mahaleb
Prunus nigra
Prunus padus
Prunus persica
Prunus pumila
sand cherry
Prunus spinosa
Prunus virginiana
Chokecherry
Pycnanthemum tenuifolium
Narrowleaf Mountain Mint
Pycnanthemum virginianum
Virginia Mountain-mint
Pyracantha coccinea
Pyrus calleryana
Pyrus communis
Quercus alba
White Oak
Quercus bicolor
Swamp White Oak
Quercus ellipsoidalis
Northern pin oak, Hill's oak
Quercus ilicifolia
Scrub Oak, Bear Oak
Quercus macrocarpa
Bur Oak
Quercus muehlenbergii
Chinkapin Oak, Chinquapin Oak
Quercus palustris
Swamp Oak, Pin Oak
Quercus prinoides
Dwarf Chinkapin Oak, Dwarf Chinquapin Oak
Quercus robur
English Oak
Quercus rubra
Northern Red Oak
Quercus shumardii
Shumard Oak
Quercus spp
Quercus velutina
Black Oak
Rabdophaga like-rosaria
Ratibida columnifera
Upright Prairie Coneflower
Ratibida pinnata
Rhamnus cathartica
Rhaponticum repens
Leuzea repens, Centaurea repens, Acroptilon repens
Rhus glabra
Rhus typhina
Ribes aureum
Ribes spp
Ribes uva-crispa
Robinia pseudoacacia
Black Locust
Rosa acicularis
Rosa arkansana
Rosa blanda
Rosa canina
Rosa nitida
Rosa palustris
Rosa rugosa
Rosa woodsii
Rubus allegheniensis
Rubus caesius
Rubus canadensis
Rubus flagellaris
Rubus procumbens, Common dewberry
Rubus hispidus
Rubus laciniatus
Rubus nutkanus
Rubus pubescens
Rubus strigosus
Rumex crispus
Curly dock
Salix alba
Salix amygdaloides
Salix arctica
Salix bebbiana
Bebb's Willow, Salix rostrata
Salix candida
Salix caprea
Salix cordata
Salix daphnoides
Salix discolor
Pussy willow
Salix eriocephala
Salix fragilis
Salix humilis
Salix interior
Salix lucida
Salix matsudana
Salix myricoides
Salix myrsinifolia
Salix myrtillifolia
Salix nigra
Salix pedicellaris
Salix pentandra
Salix petiolaris
Meadow willow
Salix pyrifolia
Balsam willow
Salix reticulata
Salix serissima
Salix triandra
Salix viminalis
Sambucus canadensis
Sambucus nigra
Sambucus racemosa
Sassafras albidum
Sassafras
Scrophularia marilandica
Senecio jacobaea
Stinking Willie
Shepherdia canadensis
Silphium laciniatum
Compass Plant
Smilax herbacea
Smilax rotundifolia
Smilax tamnoides
Solanum carolinense
Carolina horsenettle
Solidago altissima
Solidago arguta
Solidago bicolor
Solidago caesia
Solidago canadensis
Solidago flexicaulis
Solidago gigantea
Solidago serotina
Solidago juncea
Solidago macrophylla
Solidago missouriensis
Solidago nemoralis
Solidago patula
Solidago ptarmicoides
Solidago puberula
Solidago rigida
stiff goldenrod
Solidago rugosa
Solidago sempervirens
Northern Seaside Goldenrod
Solidago squarrosa
Solidago ulmifolia
Elmleaf Goldenrod
Sonchus arvensis
Sonchus oleraceus
Sonchus palustris
Sorbus americana
Sorbus aucuparia
Spiraea alba
Sporobolus sp
Stachys hispida
Stachys palustris
Stachys tenuifolia
Symphoricarpos albus
Symphoricarpos orbiculatus
Coralberry
Symphyotrichum boreale
northern bog aster, Aster borealis
Symphyotrichum ciliolatum
northern heart-leaved aster, Aster ciliolatus
Symphyotrichum cordifolium
Aster cordifolius, Aster sagittifolius, common blue wood aster
Symphyotrichum drummondii
Symphyotrichum texanum, Aster texanus, Drummond's aster, Aster drummondii
Symphyotrichum dumosum
long-stalked aster, Aster dumosus
Symphyotrichum ericoides
heath aster, Aster pansus, Aster ericoides
Symphyotrichum falcatum
white prairie aster, Aster crassulus, Aster commutatus, Aster falcatus
Symphyotrichum firmum
Aster lucidulus, Aster puniceus var. firmus, Aster firmus, shining aster
Symphyotrichum laeve
Smooth Blue Aster, Aster laevis, Aster concinnus, Symphyotrichum concinnum, Aster geyeri, Aster purpuratus
Symphyotrichum lanceolatum
Aster paniculatus, Aster fluvialis, Aster hesperius, Aster simplex, Aster lanceolatus, Panicled aster, Aster interior, Symphyotrichum simplex
Symphyotrichum lateriflorum
Aster lateriflorus, Calico aster
Symphyotrichum novae-angliae
New England aster, Aster novae-angliae
Symphyotrichum ontarionis
Lake Ontario aster, Aster ontarionis
Symphyotrichum oolentangiense
Aster oolentangiense, azure aster, Aster azureus
Symphyotrichum pilosum
frost aster, Aster pringlei, Aster pilosus
Symphyotrichum praealtum
Aster coerulescens, Aster praealtus, willow aster
Symphyotrichum prenanthoides
zigzag aster, Aster prenanthoides
Symphyotrichum puniceum
swamp aster, Aster scabricaulis, Aster puniceus
Symphyotrichum sericeum
western silvery aster, Aster sericeus
Symphyotrichum shortii
Short's aster, Aster shortii
Symphyotrichum subulatum
Symphyotrichum squamatum, Aster squamatus, Aster bahamensis, Symphyotrichum bahamense, Aster subulatus, eastern saltmarsh aster
Symphyotrichum undulatum
Aster paniculatus, wavyleaf aster, Aster undulatus
Syringa vulgaris
Tanacetum parthenium
Tanacetum vulgare
Tilia americana
American Basswood
Tilia cordata
Toxicodendron vernix
Trichostema dichotomum
Trichostema nesophilum
Dune bluecurls
Trifolium hybridum
Tsuga canadensis
Ulmus americana
American Elm, Ulmus alba, Ulmus dentata, Ulmus floridana, Ulmus mollifolia, Ulmus obovata
Ulmus glabra
Scots Elm
Ulmus minor
Ulmus procera, European Field Elm
Ulmus parvifolia
Chinese elm
Ulmus pumila
Siberian elm
Ulmus rubra
Slippery elm, Ulmus fulva
Ulmus thomasii
Ulmus racemosa
Urtica gracilis
Urtica dioica
Vaccinium angustifolium
Lowbush Blueberry
Vaccinium corymbosum
Northern highbush blueberry
Vaccinium ovalifolium
Vaccinium pallidum
Vaccinium stamineum
Deerberry
Verbena bracteata
Verbena hastata
Verbena urticifolia
White Vervain
Verbesina alternifolia
Wingstem
Vernonia gigantea
Veronica arvensis
Viburnum acerifolium
Viburnum cassinoides
Viburnum lantana
Viburnum lentago
Viburnum sp
Viola affinis
Sand Violet
Viola cucullata
Marsh Blue Violet
Viola odorata
Sweet Violet
Viola septentrionalis
Northern Woodland Violet
Vitis aestivalis
Summer grape
Vitis labrusca
Fox grape
Vitis riparia
Riverbank grape
Vitis vulpina
Xanthium sp
Xanthium strumarium
Zanthoxylum americanum
Prickly Ash
Zizia aurea
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