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Look through the most comprehensive database of toxic plants available to horse owners on the Web.
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Overall
Flower
Fruit
Leaf
Bark
Type
Common Name
Ackee
Alsike clover
American holly
Angel's Trumpet
Annual ryegrass
Apricot
Arrowgrass
Avocado
Azalea
Bearded tongue
Belladonna Lily
Bellyache bush
Bermudagrass
Birdsville indigo
Bitter almond
Bitter root
Black bean tree
Black cherry
Black henbane
Black jetbead
Black locust
Black walnut
Blackthorn
Bleeding heart
Bloodroot
Bluebells
Bog asphodel
Bouncing bet
Boxelder
Boxwood
Bracken fern
Buckwheat
Buffel grass
Burdock pappus
Buttercup
Caley Pea
Cape tulip
Cardinal flower
Carolina jasmine
Castor bean
Catsear
Chinaberry
Chokecherry
Christmas rose
Climbing lily
Cocklebur
Cockspur coral tree
Coffee
Coffee senna
Columbine
Comfrey
Common milkweed
Common plantain
Common wireweed
Cotoneasters
Creeping indigo
Crofton weed
Crownvetch
Cuckoopint
Curly dock
Daffodil
Dallisgrass
Darling peas
Deadly Nightshade
Deathcamas
Devil's walking stick
Dumbcane
Dune onion weed
Elderberry
Elephant's ear
Emerald feather
English ivy
Fall panicum
False hellebore
Fetterbush
Fiddleneck
Field bindweed
Field pennycress
Fireweed
Fivehook bassia
Fly poison
Fool's parsley
Foxglove
Giant fennel
Giant hogweed
Goat's-Rue
Golden chain tree
Gomphrena weed
Greasewood
Green cestrum
Green foxtail
Groundsel
Gumweed
Hairy vetch
Halogeton
Heliotrope
Hemp
Hemp dogbane
Henbane bell
Hoary alyssum
Honey locust
Horse chestnut
Horsenettle
Horsetail
Houndstongue
Indian mustard
Jack-in-the-pulpit
Jamaican nettletree
Japanese pieris
Japanese privet
Jimsonweed
Johnsongrass
Kentucky coffee tree
Kidney bean
Kikuyu grass
Kleingrass
Kochia
Lambsquarters
Lantana
Larkspur
Leafy Spurge
Lily of the valley
Locoweeds
Lupine
Mandrake
Marshmallow
Mayapple
Mayweed chamomile
Meadow foxtail
Meadow saffron
Mezereon
Milkvetch
Mistflower
Mistletoe
Monkshood
Morning glory
Mother-of-millions
Mountain laurel
Mountain pomegranate
Nardoo
Needlegrass
Nenta
Night blooming jassamine
Nightshades
Oak
Oleander
Onions
Oriental bittersweet
Pacara Earpod Tree
Palicourea marcgravii
Pangola grass
Paradoxa grass
Paterson's curse
Peace lily
Peach
Pearl millet
Perennial pea
Perennial ryegrass
Perilla mint
Periwinkle
Persimmon
Physic nut
Pig's ears
Pingue
Pistachio
Poison hemlock
Pokeweed
Ponderosa pine
Poppies
Potato
Puncture vine
Purslane
Queen anne's lace
Ragwort
Rangers button
Rayless Goldenrod
Red buckeye
Red clover
Red maple
Redroot pigweed
Reed canarygrass
Rhubarb
Rosary pea
Rubber vine
Russian knapweed
Sabi star
Sacred bamboo
Sagewort
Sago palm
Scarlet pimpernel
Sensitive fern
Setaria
Showy rattlebox
Signalgrass
Silver Wattle
Smooth rattlebox
Snakecotton
Sneezeweed
Southern sandbur
Spanish gold
Spiked Rice-flower
Spindle
Spiny pigweed
St. John's wort
Star-of-bethlehem
Stinging nettle
Stonecrop
Sudan grass
Summer pheasant's eye
Swanplant
Sweet clover
Sweet pea
Switchgrass
Sycamore maple
Tall fescue
Tobacco
Tomato
Toyon
Tree tobacco
Tulip
Tung tree
Virgin's bower
Water hemlock
Waxy-leaf nightshade
White Bryony
White cedar
White clover
White snakeroot
Whitewood
Whorled Milkweed
Wild radish
Winter aconite
Wisteria
Wormseed mustard
Yarrow
Yellow oleander
Yellow star thistle
Yellow woodsorrel
Yew
Scientific Name
Abrus precatorius
Acacia spp
Acer negundo
Acer pseudoplatanus
Acer rubrum
Achillea millefolium
Aconitum napellus
Adenium obesum
Adonis aestivalis
Aesculus hippocastanum
Aesculus pavia
Aethusa cynapium
Ageratina adenophora
Ageratina riparia
Allium spp
Alocasia spp
Alopecurus pratensis
Amaranthus retroflexus
Amaranthus spinosus
Amaryllis spp
Amianthium muscitoxicum
Amsinckia menziesii
Anthemis cotula
Apocynum cannabinum
Aquilegia vulgaris
Aralia spinosa
Arctium spp
Arisaema triphyllum
Artemisia spp
Arum italicum
Asclepias syriaca
Asclepias verticillata
Asparagus aethiopicus
Astragalus & Oxytropis
Astragalus bisulcatus
Atalaya hemiglauca
Atropa belladonna
Bassia hyssopifolia
Berteroa incana
Blighia sapida
Brachiaria decumbens
Brassica juncea
Brugmansia suaveolens
Bryonia spp
Buxus sempervirens
Cannabis sativa
Castanospermum australe
Catunaregam spinosa
Celastrus orbiculatus
Cenchrus ciliaris
Cenchrus echinatus
Centaurea solstitialis
Cestrum nocturnum
Cestrum parqui
Chenopodium album
Cicuta virosa
Clematis spp
Coffea arabica
Colchicum autumnale
Conium maculatum
Convallaria majalis
Convolvulus arvensis
Cotoneaster spp
Cotyledon spp
Crotalaria pallida
Crotalaria spectabilis
Cryptostegia grandiflora
Cycas revoluta
Cynodon dactylon
Cynoglossum officinale
Daphne mezereum
Datura stramonium
Daucus carota
Delphinium spp
Dieffenbachia seguine
Digitalis purpurea
Digitaria eriantha
Diospyros virginiana
Echium spp
Enterolobium contortisiliquum
Equisetum spp
Eranthis hyemalis
Erysimum cheiranthoides
Erythrina crista-galli
Euonymus europaeus
Eupatorium rugosum
Euphorbia spp
Fagopyrum esculentum
Ferula communis
Festuca arundinacea
Froelichia humboldtiana
Galega officinalis
Gelsemium sempervirens
Gleditsia triacanthos
Gloriosa superba
Gomphocarpus fruticosus
Gomphrena celosioides
Grindelia squarrosa
Gymnocladus dioicus
Halogeton glomeratus
Haplopappus heterophyllus
Hedera helix
Helenium autumnale
Heliotropium europaeum
Helleborus niger
Heracleum mantegazzianum
Heteromeles arbutifolia
Hymenoxys spp
Hyoscyamus niger
Hypericum perforatum
Hypochaeris radicata
Ilex opaca
Indigofera linnaei
Indigofera spicata
Ipomoea spp
Jatropha curcas
Jatropha gossypifolia
Juglans nigra
Kalanchoe delagoensis
Kalmia latifolia
Kochia scoparia
Laburnum anagyroides
Lamprocapnos spectabilis
Lantana camara
Lathyrus hirsutus
Lathyrus latifolius
Lathyrus odoratus
Leucothoe
Lewisia rediviva
Ligustrum japonicum
Lobelia cardinalis
Lolium multiflorum
Lolium perenne
Lupinus polyphyllus
Lysimachia arvensis
Malva parviflora
Mandragora officinarum
Marsilea drummondii
Melia azedarach
Melilotus officinalis
Moraea flaccida
Nandina domestica
Narcissus pseudonarcissus
Narthecium ossifragum
Nerium oleander
Nicotiana glauca
Nicotiana tabacum
Onoclea sensibilis
Ornithogalum umbellatum
Oxalis spp
Palicourea marcgravii
Panicum coloratum
Panicum dichotomiflorum
Panicum virgatum
Papaver spp
Paspalum dilatatum
Pennisetum clandestinum
Pennisetum glaucum
Penstemon spp
Perilla frutescens
Persea americana
Phalaris arundinacea
Phalaris paradoxa
Phaseolus vulgaris
Phytolacca americana
Pieris japonica
Pimelea trichostachya
Pinus ponderosa
Pistacia spp
Plantago major
Podophyllum peltatum
Portulaca oleracea
Prunus armeniaca
Prunus dulcis
Prunus persica
Prunus serotina
Prunus spinosa
Prunus virginiana
Pteridium aquilinum
Quercus spp
Ranunculus acris
Raphanus raphanistrum
Rhaponticum repens
Rheum rhabarbarum
Rhododendron spp
Rhodotypos scandens
Ricinus communis
Robinia pseudoacacia
Rumex crispus
Sambucus nigra
Sanguinaria canadensis
Saponaria officinalis
Sarcobatus vermiculatus
Scilla spp
Scopolia carniolica
Securigera varia
Sedum spp
Senecio jacobaea
Senecio madagascariensis
Senecio vulgaris
Senna occidentalis
Sesbania punicea
Setaria sphacelata
Setaria viridis
Sida acuta
Solanum carolinense
Solanum glaucophyllum
Solanum lycopersicum
Solanum spp
Solanum tuberosum
Sorghum bicolor
Sorghum halepense
Spathiphyllum spp
Sphenosciadium
Stipa spp
Swainsona spp
Symphytum officinale
Taxus baccata
Thevetia peruviana
Thlaspi arvense
Thuja occidentalis
Trachyandra divaricata
Trema micrantha
Tribulus terrestris
Trifolium hybridum
Trifolium pratense
Trifolium repense
Triglochin maritima
Tulipa spp
Tylecodon spp
Urtica dioica
Veratrum album
Vernicia fordii
Vicia villosa
Vinca spp
Viscum album
Wisteria frutescens
Xanthium strumarium
Zigadenus venenosus
Plant Family
Papaveraceae
1
Aceraceae
1
Adoxaceae
1
Amaranthaceae
4
Amaryllidaceae
3
Anacardiaceae
1
Apiaceae
7
Apocynaceae
8
Aquifoliaceae
1
Araceae
5
Araliaceae
2
Asclepiadaceae
2
Asparagaceae
3
Asphodelaceae
1
Asteraceae
19
Berberidaceae
2
Boraginaceae
5
Brassicaceae
5
Buxaceae
1
Campanulaceae
1
Cannabaceae
1
Cannabinaceae
1
Caryophyllaceae
1
Celastraceae
2
Chenopodiaceae
3
Colchicaceae
1
Convolvulaceae
2
Crassulaceae
4
Cucurbitaceae
1
Cupressaceae
1
Cycadaceae
1
Dennstaedtiaceae
1
Ebenaceae
1
Equisetaceae
1
Ericaceae
4
Euphorbiaceae
5
Fabaceae
30
Faboideae
1
Fagaceae
1
Hippocastanaceae
1
Hypericaceae
1
Iridaceae
1
Juglandaceae
1
Juncaginaceae
1
Lamiaceae
1
Lauraceae
1
Liliaceae
7
Loganiaceae
1
Malvaceae
2
Marsileaceae
1
Meliaceae
1
Oleaceae
1
Onocleaceae
1
Oxalidaceae
1
Papaveraceae
2
Phytolaccaceae
1
Pinaceae
1
Plantaginacea
1
Plantaginaceae
2
Poaceae
22
Polygonaceae
3
Portulacaceae
1
Primulaceae
1
Ranunculaceae
8
Rosaceae
9
Rubiaceae
3
Sapindaceae
5
Sarcobataceae
1
Solanaceae
15
Taxaceae
1
Thymelaeaceae
2
Urticaceae
1
Verbenaceae
1
Viscaceae
1
Zygophyllaceae
1
Body Systems Affected
Blood
Anemia
Gastrointestinal
Colic
Heart
Cardiac abnormalities
Kidneys
Kidney failure
Liver
Liver damage
Mouth
Oral cavity
Musculoskeletal
Gait alterations
Neurological
Ataxia, seizures, tremors
Reproductive
Abortions
Skin
Damage
Found
Coastal
Gardens
Haybales
Meadows
Mountains
Ornamental
Waterside
Woodlands
Xerophyte
Toxin/Issue
Alkaloids
Awns
Glycosides
Ketones
Lectins
Mechanical injury
Mycotoxins
Nitrate accumulator
Non-Protein Amino Acids
Oxalates
Phenolic compounds
Polyacetylenes
Saponins
Selenium accumulator
Terpenes
Thiaminase
Unknown toxins
Flower Color
Height
Toxicity Level
Ackee
Blighia sapida
Alsike clover
Trifolium hybridum
American holly
Ilex opaca
Angel's Trumpet
Brugmansia suaveolens
Annual ryegrass
Lolium multiflorum
Apricot
Prunus armeniaca
Arrowgrass
Triglochin maritima
Avocado
Persea americana
Azalea
Rhododendron spp
Bearded tongue
Penstemon spp
Belladonna Lily
Amaryllis spp
Bellyache bush
Jatropha gossypifolia
Bermudagrass
Cynodon dactylon
Birdsville indigo
Indigofera linnaei
Bitter almond
Prunus dulcis
Bitter root
Lewisia rediviva
Black bean tree
Castanospermum australe
Black cherry
Prunus serotina
Black henbane
Hyoscyamus niger
Black jetbead
Rhodotypos scandens
Black locust
Robinia pseudoacacia
Black walnut
Juglans nigra
Blackthorn
Prunus spinosa
Bleeding heart
Lamprocapnos spectabilis
Bloodroot
Sanguinaria canadensis
Bluebells
Scilla spp
Bog asphodel
Narthecium ossifragum
Bouncing bet
Saponaria officinalis
Boxelder
Acer negundo
Boxwood
Buxus sempervirens
Bracken fern
Pteridium aquilinum
Buckwheat
Fagopyrum esculentum
Buffel grass
Cenchrus ciliaris
Burdock pappus
Arctium spp
Buttercup
Ranunculus acris
Caley Pea
Lathyrus hirsutus
Cape tulip
Moraea flaccida
Cardinal flower
Lobelia cardinalis
Carolina jasmine
Gelsemium sempervirens
Castor bean
Ricinus communis
Catsear
Hypochaeris radicata
Chinaberry
Melia azedarach
Chokecherry
Prunus virginiana
Christmas rose
Helleborus niger
Climbing lily
Gloriosa superba
Cocklebur
Xanthium strumarium
Cockspur coral tree
Erythrina crista-galli
Coffee
Coffea arabica
Coffee senna
Senna occidentalis
Columbine
Aquilegia vulgaris
Comfrey
Symphytum officinale
Common milkweed
Asclepias syriaca
Common plantain
Plantago major
Common wireweed
Sida acuta
Cotoneasters
Cotoneaster spp
Creeping indigo
Indigofera spicata
Crofton weed
Ageratina adenophora
Crownvetch
Securigera varia
Cuckoopint
Arum italicum
Curly dock
Rumex crispus
Daffodil
Narcissus pseudonarcissus
Dallisgrass
Paspalum dilatatum
Darling peas
Swainsona spp
Deadly Nightshade
Atropa belladonna
Deathcamas
Zigadenus venenosus
Devil's walking stick
Aralia spinosa
Dumbcane
Dieffenbachia seguine
Dune onion weed
Trachyandra divaricata
Elderberry
Sambucus nigra
Elephant's ear
Alocasia spp
Emerald feather
Asparagus aethiopicus
English ivy
Hedera helix
Fall panicum
Panicum dichotomiflorum
False hellebore
Veratrum album
Fetterbush
Leucothoe
Fiddleneck
Amsinckia menziesii
Field bindweed
Convolvulus arvensis
Field pennycress
Thlaspi arvense
Fireweed
Senecio madagascariensis
Fivehook bassia
Bassia hyssopifolia
Fly poison
Amianthium muscitoxicum
Fool's parsley
Aethusa cynapium
Foxglove
Digitalis purpurea
Giant fennel
Ferula communis
Giant hogweed
Heracleum mantegazzianum
Goat's-Rue
Galega officinalis
Golden chain tree
Laburnum anagyroides
Gomphrena weed
Gomphrena celosioides
Greasewood
Sarcobatus vermiculatus
Green cestrum
Cestrum parqui
Green foxtail
Setaria viridis
Groundsel
Senecio vulgaris
Gumweed
Grindelia squarrosa
Hairy vetch
Vicia villosa
Halogeton
Halogeton glomeratus
Heliotrope
Heliotropium europaeum
Hemp
Cannabis sativa
Hemp dogbane
Apocynum cannabinum
Henbane bell
Scopolia carniolica
Hoary alyssum
Berteroa incana
Honey locust
Gleditsia triacanthos
Horse chestnut
Aesculus hippocastanum
Horsenettle
Solanum carolinense
Horsetail
Equisetum spp
Houndstongue
Cynoglossum officinale
Indian mustard
Brassica juncea
Jack-in-the-pulpit
Arisaema triphyllum
Jamaican nettletree
Trema micrantha
Japanese pieris
Pieris japonica
Japanese privet
Ligustrum japonicum
Jimsonweed
Datura stramonium
Johnsongrass
Sorghum halepense
Kentucky coffee tree
Gymnocladus dioicus
Kidney bean
Phaseolus vulgaris
Kikuyu grass
Pennisetum clandestinum
Kleingrass
Panicum coloratum
Kochia
Kochia scoparia
Lambsquarters
Chenopodium album
Lantana
Lantana camara
Larkspur
Delphinium spp
Leafy Spurge
Euphorbia spp
Lily of the valley
Convallaria majalis
Locoweeds
Astragalus & Oxytropis
Lupine
Lupinus polyphyllus
Mandrake
Mandragora officinarum
Marshmallow
Malva parviflora
Mayapple
Podophyllum peltatum
Mayweed chamomile
Anthemis cotula
Meadow foxtail
Alopecurus pratensis
Meadow saffron
Colchicum autumnale
Mezereon
Daphne mezereum
Milkvetch
Astragalus bisulcatus
Mistflower
Ageratina riparia
Mistletoe
Viscum album
Monkshood
Aconitum napellus
Morning glory
Ipomoea spp
Mother-of-millions
Kalanchoe delagoensis
Mountain laurel
Kalmia latifolia
Mountain pomegranate
Catunaregam spinosa
Nardoo
Marsilea drummondii
Needlegrass
Stipa spp
Nenta
Tylecodon spp
Night blooming jassamine
Cestrum nocturnum
Nightshades
Solanum spp
Oak
Quercus spp
Oleander
Nerium oleander
Onions
Allium spp
Oriental bittersweet
Celastrus orbiculatus
Pacara Earpod Tree
Enterolobium contortisiliquum
Palicourea marcgravii
Palicourea marcgravii
Pangola grass
Digitaria eriantha
Paradoxa grass
Phalaris paradoxa
Paterson's curse
Echium spp
Peace lily
Spathiphyllum spp
Peach
Prunus persica
Pearl millet
Pennisetum glaucum
Perennial pea
Lathyrus latifolius
Perennial ryegrass
Lolium perenne
Perilla mint
Perilla frutescens
Periwinkle
Vinca spp
Persimmon
Diospyros virginiana
Physic nut
Jatropha curcas
Pig's ears
Cotyledon spp
Pingue
Hymenoxys spp
Pistachio
Pistacia spp
Poison hemlock
Conium maculatum
Pokeweed
Phytolacca americana
Ponderosa pine
Pinus ponderosa
Poppies
Papaver spp
Potato
Solanum tuberosum
Puncture vine
Tribulus terrestris
Purslane
Portulaca oleracea
Queen anne's lace
Daucus carota
Ragwort
Senecio jacobaea
Rangers button
Sphenosciadium
Rayless Goldenrod
Haplopappus heterophyllus
Red buckeye
Aesculus pavia
Red clover
Trifolium pratense
Red maple
Acer rubrum
Redroot pigweed
Amaranthus retroflexus
Reed canarygrass
Phalaris arundinacea
Rhubarb
Rheum rhabarbarum
Rosary pea
Abrus precatorius
Rubber vine
Cryptostegia grandiflora
Russian knapweed
Rhaponticum repens
Sabi star
Adenium obesum
Sacred bamboo
Nandina domestica
Sagewort
Artemisia spp
Sago palm
Cycas revoluta
Scarlet pimpernel
Lysimachia arvensis
Sensitive fern
Onoclea sensibilis
Setaria
Setaria sphacelata
Showy rattlebox
Crotalaria spectabilis
Signalgrass
Brachiaria decumbens
Silver Wattle
Acacia spp
Smooth rattlebox
Crotalaria pallida
Snakecotton
Froelichia humboldtiana
Sneezeweed
Helenium autumnale
Southern sandbur
Cenchrus echinatus
Spanish gold
Sesbania punicea
Spiked Rice-flower
Pimelea trichostachya
Spindle
Euonymus europaeus
Spiny pigweed
Amaranthus spinosus
St. John's wort
Hypericum perforatum
Star-of-bethlehem
Ornithogalum umbellatum
Stinging nettle
Urtica dioica
Stonecrop
Sedum spp
Sudan grass
Sorghum bicolor
Summer pheasant's eye
Adonis aestivalis
Swanplant
Gomphocarpus fruticosus
Sweet clover
Melilotus officinalis
Sweet pea
Lathyrus odoratus
Switchgrass
Panicum virgatum
Sycamore maple
Acer pseudoplatanus
Tall fescue
Festuca arundinacea
Tobacco
Nicotiana tabacum
Tomato
Solanum lycopersicum
Toyon
Heteromeles arbutifolia
Tree tobacco
Nicotiana glauca
Tulip
Tulipa spp
Tung tree
Vernicia fordii
Virgin's bower
Clematis spp
Water hemlock
Cicuta virosa
Waxy-leaf nightshade
Solanum glaucophyllum
White Bryony
Bryonia spp
White cedar
Thuja occidentalis
White clover
Trifolium repense
White snakeroot
Eupatorium rugosum
Whitewood
Atalaya hemiglauca
Whorled Milkweed
Asclepias verticillata
Wild radish
Raphanus raphanistrum
Winter aconite
Eranthis hyemalis
Wisteria
Wisteria frutescens
Wormseed mustard
Erysimum cheiranthoides
Yarrow
Achillea millefolium
Yellow oleander
Thevetia peruviana
Yellow star thistle
Centaurea solstitialis
Yellow woodsorrel
Oxalis spp
Yew
Taxus baccata
