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Toxic Plants

  

 

Here you will find a list of poisonous and toxic plants, this list is just a guide, if in doubt consult your doctor or vet.

 

Common Name Latin Name Poisonous Parts Toxicity Effects Affects Toxines
             
Aconite Aconitum Spp. All Highly Toxic Nausea and vomiting Horses, People  
Adam and Eve Arum Maculatum          
African Blood Lily Scadoxus Multiflorus          
African Blue Lily Agapanthus Orientalis          
African Evergreen Syngonium Podophyllum          
African Hemp Sparmannia Africana          
African Milk Bush Synadenium Grantii          
Agapanthus Agapanthus Orientalis Sap     Children  
Alder Buckthorn         Horses  
Aloe Aloe Vera     Diaorrhea Horses  
Alsike Clover Trifolium Hybridum All green parts. Minimal Female organs swell, infertility gastrointestinal trouble, photodermatitis. All grazing animals, Horses  
Amaryllis Hippeastrum Spp. Bulbs, Sap   Upset stomach, hyperactivity, coma, shock Horses, Birds, Children, Dogs  
American Elder Sambucus Canadensis          
American Rubber Plant Peperomia Obtusifolia          
Ampelopsis Ampelopsis Spp.          
Angels' Trumpet Brugmansia Candida All parts   Nauseas and vomiting Horses, Children  
Anthurium Anthurium Spp.          
Apple Tree Malus Sylvestris Seeds     Horses Varied toxic efects.
Apple Leaf Croton     Very Toxic Deadly. Horses Ricin
Apple of Peru Nicandra Physalodes Most parts Mildly poisonous.   Children  
Apple of Sodom Solanum Linnaeanum       Children  
Apricot Tree Prunus Armeniaca Kernel Deadly if eaten in large quantities.   Children, Horses Cyanide
Aralia Polyscias Spp.          
Arbotivae     Harmful if eaten in large quantities.  Causes skin allergy. Horses  
Arnica Root Arnica Montana          
Arrowhead Vine Syngonium Podophyllum          
Arum Lily Zantedeschia Aethiopica All parts, specially berries. A tiny part causes burning. Immediate pain. Mouth and throat burning, stomach pain and vomiting. Children  
Asparagus Asparagus Officinalis Small red berries. Mildly poisonous.   Children  
Asparagus Fern Asparagus Densiflorus       Horses, Dogs Many poisons
Australian Nut Macadamia Integrifolia     Depression, weakness, vomiting, tremors. Dogs  
Australian Ngaio Myoporum Insulare       Children  
Autumn Crocus   All plant and bulb   Vomiting, nervous. Can cause dermatitis. Children, Dogs  
Autumn Schilla Scilla Spp.          
Autumn Skullcap Galerina Autumnalis          
Avocado Persea Americana Leaves, unripe fruit, stems.   Diarrhea, vomiting. Weakness, inability to perch, breathing trouble. Birds  
Azalea Rhododendron Spp. All Fatal. Nauseas, vomiting, breathing problems. convulsions, death. All, Children.  
Baby Rubber Plant Peperomia Obtusifolia          
Baby's Breath Gypsophila Paniculata          
Balsam Pear Momordica Charantia          

Baneberry		 Actaea Spicata Root     Birds  
Baptisia Baptisia Spp.          
Barilla   Leaves and Stems.       Soluble oxalates.
Basket Flower Hymenocallis Spp.          
Bean Broad Vicia Faba       Birds  
Bearsfoot Hellebore Helleborus Foetidus          
Beech Fagus Spp.          
Belladonna Atropa Belladona       All  
Benjamin Tree Ficus Benjamina          
Benweed Senecio Jacobaea All   Kidney and liver damage. Horses, cattle, dogs. humans. Pyrrolizidine alkaloids.
Bird of Paradise Caesalpinia Spp. Seeds   Gastrointestinal trouble. Birds, Children  
Bitter Almond Prunus Dulcis Kernels        
Bitter Gourd Momordica Charantia          
Bittersweet Solanum Dulcamara All, specially berries     Children  
Black Byrony Tamus Communis Roots     Horses  
Black Cherry Prunus Serotina          
Black Henbane Hyoscyamus Niger          
Black Jetbread Rhodotypos Scandens          
Black Locust Robinia Pseudoacacia All except flowers. Bark is very toxic. Can affect children . Paralysis and Staggering. Vomiting, diarrhoea, depresion. Poultry, cattle, horses, birds, Children. Robitin, Robin.
Black Nightshade Solanum Nigrum All, specially berries. Moderately toxic. Berries scarcely poisonous. Gastrointestinal trouble, vomiting, diarrhea, weakness, depression, convulsions, death. All animals, Horses  
Blackberry Lily Belamcanda Chinensis          
Bleeding Heart Dicentra Spectabilis Foliage and Roots Poisonous is large quantities. Causes dermatitis. Birds, Children, Cattle. Isoquinoline
Bloody Lily Scadoxus Multiflorus          
Bloodroot Sanguinaria Canadensis All       Alkaloids Sanguinarine, Chelerythrine
Blue Bell     Dangerous in large quantities.      
Blue Cohosh Caulphyllum Thalictroides          
Blue Devil Echium Spp.          
Blue-Green Algae Microcystis Aeruginosa All   Inability to fly. Breathing trouble. Birds Anatoxin, Mycrocystin
Blue Squill Scilla Spp.          
Bluebead-lily Clinntonia Borealis          
Blueberry Lily Dianella Nigra Berries Poisonous   Children  
Blueweed Echium Spp.          
Bouncing-Bet Saponaria Officinalis All specially seeds and roots.   Mouth, stomach and intestinal irritations.   Saponins
Box Thorn Lycium Ferocissimum Orange red berries.     Horses, Children  
Boxwood Buxus Sempervirens All   Dermatitis, upset stomach, heart failure. Birds, Children  
Bracken Fern         Horses, Birds  
Branching Ivy   Leaves and Berries   Dermatitis.   Saponins
British Mandrake Bryonia Dioica Roots More toxic when dry. Heart and breathing problems.    
Broom Cytisus Scoparius. Seeds, specially if chewed before swallowing.     Horses, Children  
Buckeyes Aesculus Hippocastanum Nuts   Intestines.   Sponins
Buckeye Bottlebrush Aesculus Parviflora          
Buckeye California Aesculus Californica          
Buckthorn Rhamnus Spp. Seeds are most toxic.  Dangerous in large quantities. Liver trouble. Nervous disturbances. Lack of coordination, staggering.  Horses  
Buckwheat Fagopyrum Esculentum     Photosensitive dermatitis, Weepy itching dermatitis.  Horses Fagopyrin
Buffalo Nut Pyrularia Pubera          
Burning Bush Euonymus Spp.   Toxic if eaten Dermatitis, nauseas and vomiting.    
Bushman's Poison Acokanthera Oppositifolia All specially shoots and roots. Extremely poisonous.   Children  
Buttercup Ranunculus spp. All, juice, fresh leaves and stems. Juice causes severe digestive injuries.  Dematitis, Diarrhea. All animals, Horses, Birds, Children  
Butterfly Weed Asclepias Tuberosa          
Caladium Caladium Spp.     Oral irritation, breathing trouble, stomach trouble, loss of balance. Birds  
Calico Bush     Toxic if Eaten. Dermatitis, nauseas and vomiting.    
Calla Lilly Zantedeschia Aethiopica Leaves   Oral irritation, breathing trouble, stomach trouble, loss of balance.    
Canada Moonseed Menispermum Canadense          
Candelabra Cactus Euphorbia Lactea          
Cannabis Cannabis Sativa All Not fatal. Body weakness, vomiting.    
Caper Spruge Euphorbia Lathyris          
Cardinal Flower Lobelia Spp.          
Cardinal Flower Blue Lobelia Spp.          
Cardinal-Spear Erthrina Herbacea          
Carnation Dianthus Spp.          
Carolina Allspice Calycanthus Floridus          
Carolina Cherry Laurel Prunus Caroliniana          
Carolina Jessamine Gelsemium Sempervirens          
Cassava Manihot Esculenta          
Castor Bean Ricinus Communis All Seeds highly toxic. Can be fatal. One or two seeds causes death. Also causes dermatitis. Vomiting, bloody diarrhoea. All, Children Toxalbumins, Ricin
Catnip Nepeta Cataria Stems and leaves Low toxicity no damaging effect. Vomiting and diarrhea. Only Cats  
Celandine Chelidonium Majus       Horses  
Celery Apium Graveolens     Dermatitis, burns. Children  
Celery-leaved Buttercup Ranunculus Sceleratus All specially leaves. Extremely toxic. Mouth and lips burning and blistering. Children  
Century Plant Agave Spp.          
Cestrum Cestrum Cpp. All Very poisoonous.      
Chalice Vine Solandra Spp.          
Charlock         Horses  
Charming Dieffenbachia   Sap Not severe. Vomiting and diarrhoea. Recovers in 3 days.    
Chenile Plant Acalypha Hispida          
Cherokee-Bean Erythrina Herbacea          
Cherry   Kernels     Birds Cyanogenic
Cherry Laurel Prunus Laurocerasus Kernels Harmfull if eaten in large quantities.   Horses, Children  
Chestnut Tree         Birds  
Chickweed         Horses  
Chigger Plant Asclepias Tuberosa          
Chilean Jasmine Mandevilla Suaveolens Latex in all parts.     Children  
China Tree Melia Azedarach          
Chinaberry Melia Azedarach          
Chincherinchee Ornithogalum Thyrsoides          
Chinese Bellflower Abutilon Hybridum          
Chinese Evergreen Aglaonema Modestum          
Chinese Lantern Abutilon Hybridum All   Intense digestive pain.    
Chinese Lacquer Tree Toxicodendron Vernicifluum All Contains various poisons Blistering, skin inflammation, irritation. Dermatitis. Children  
Chinese Scholar Tree Sophora Japonica          
Chinese Yam Dioscorea Batatas          
Chlorine Lepidella Amanita Chlorinosma          
Chokecherry   Leaves, Bark, Cherries Horses die minutes after eating it. Breathing trouble, no bowel control, lack of coordination, immediate death. Horses, Children  
Christmas Cherry Solanum Pseudocapsicum All   Intense digestive pain. Irregular Heart Beat. Tachycardia. Paralysis Birds Solanine, Alkaloids, Saponins
Christmas Flower Euphorbia Pulcherrima          
Christmas Rose Helleborus Niger All   Dermatitis, diarrhoea, heart trouble.    
Chrysanthemum   Leaves and Stem   Dermatitis Children  
Churee Euphorbia Royleana          
Cinnamon Vine Dioscorea Batatas          
Clematis Clematis Spp. All   Dermatitis, gastrointestinal trouble. Birds  
Clover         Horses, Birds  
Cocklebur Xanthium Strumarium          
Coffee Beans Sesbania Drumundii Leaves   Tachycardia, hypertension, seizures, diarrhoea. Birds Caffeine, Theobromine, Theophylline
Colombine     Harmfull if eaten in large quantities.   Horses  
Comfrey Symphytum Officinale   Can be a tonic. harmfull if used over a long period.      
Common Burdock Arctium Minus Burs   Irritation, intestinal trouble. All Animals  
Common Cocklebur Xanthium Strumarium Seeds very toxic, all plant.   Gastrointestinal trouble, breathing trouble, death. All animals. Glycoside, carboxyatractyloside.
Common Nettle Urtica Dioica Hairs   Dermatitis, vomiting, breathing trousble and weakness.    
Common St. Johns Wort Hypericum Perforatum All   Dermatitis    
Common Stonecrop Sedum Acre All Toxic if eaten in large quantities. Tremors, coma, breathing trouble.    
Common Tansy Tanacetum Vulgare Leaves, Stems Low toxicity. Salivating, colic, abdominal pain. All animals  
Coral Plant         Birds  
Cordatum            
Corn Cockle     Harmful if eaten in large quantities.   Horses  
Corsican Hellebore Helleborus Lividus All     Children  
Cotoneaster   Red Berries Mildly Poisonous      
Cowbane         Horses  
Cowslip         Birds  
Crownvetch         Birds  
Cruel Plant Araujia Sericefera Latex and Fruit     Children  
Cuckoo pint       Dermatitis, nauseas and vomiting. Horses  
Cutleaf Philodendron   All   Dermatitis if touched. Diarrhoea and burning sensation if eaten.    
Cyclamen   Flowers   Dermatitis, vomiting.    
Daffodil Narcissus spp. Bulbs May be fatal. Dermatitis, nausea, vomiting, diarrhoea. Birds, Children, Dogs Alkaloid
Daphne   All but specially berries. Is fatal a few berries can kill a child. Dermatitis, gastrointestinal trouble. Kidney problems. Birds, Children Coumarin Glycosides
Darnel         Horses  
Day Lily         Dogs  
Dwarf Bay     Can be fatal. Lethargy, dizziness, diarrhoea, vomiting.    
Deadly Nightshade Atropa Belladonna All   Intense digestive trouble. Dermatitis, burns Horses, Children  
Delphinium Delphinium spp. All Harmful if eaten in quantity.   Children, Horses  
Dendrathema     Not always toxic. Skin allergies.    
Devils Figs     Harmful if eaten in quantity.      
Devil's Ivy (Philodendron)   All Can be mortal. Diarrheoa, dermatitis, stomach trouble, mouth irritation, seizures, asphyxia.    
Diffenbachia Dieffenbachia Spp. All Can be mortal if throat or tongue swell. Dypsnea, vomiting, diarrhoea, irritated eyes. Mouth and throat swelling. Birds, Children Resorcinol
Dracaena Palm            
Dumb Cane Dieffenbachia All Can be mortal if throat or tongue swell. Upset stomach, mouth irritation, asphyxia, temors. Throat Swelling Children  
Dutchman Breechs Dicentra spp. Foliage and Roots Poisonous is large quantities.  Causes dermatitis.   Isoquinoline
Dwarf Morning Glory     Harmful if eaten in quantity.      
Easter Lily Lilium Longiflorum Leaves, stems and flowers   Vomiting, depression, lack of appetite. Only Cats  
Echium       May cause skin allergy.    
Elderberry Sambucus Nigra All, specially roots and berries. Children use piecs of stem for blowguns are poisoned. Vomiting and nauseas. Children Toxic levels of nitrates.
Elephant Ears Alocasia Brisbanensis All Can be mortal if throat or tongue swell. Intense burning, irritation, mouth and throat swelling. Birds, Children, Dogs  
English Ivy Hedera Helix L. Leaves and berries.   Dermatitis, gastrointestinal trouble Cats, dogs, birds, pets. Children Sapornins. Glycoside, Aglycone hederagenin.
English Yew Taxus Baccata Foliage, Berries, bark, seeds. Very poisonous, death can be sudden without symptoms. Digestive trouble, dry mouth, dizziness, vomiting. Seizures, cardiac and breathing trouble. All animals, Horses, Children Alkaloids (taxines)
Ergot Claviceps Purpurea All   Causes Abortion, hyperexcitiability, seizures, gangrene, death. Humans, sheep, dogs, birds, poultry, horses. Ergopeptide alkaloids
European Spindle     Harmful if eaten in large quantities.      
European White Bryony Bryonia Alba Roots       Glucoside
Exotica Perfection Dieffenbachia   Sap Recover after 3 days. Strong vomiting and diarrhoea.    
False Acacia Robinia Pseudoacacia All except flowers. Bark is very toxic.   Paralysis and Staggering Poultry, cattle, horses.  
False Hellebore       Nauseas and vomiting.    
Fescue Festuca Arundinaceae          
Fiddleneck   Seeds are most toxic.   Liver trouble. Nervous disturbances. Lack of coordination, staggering. Horses  
Fireweed   Seeds are most toxic.   Liver trouble. Nervous disturbances. Lack of coordination, staggering. Horses  
Flannel Flowers     Harmful if eaten in large quantities.      
Flax     Harmful if eaten in large quantities.      
Four O'clocks         Children  
Foxglove Digitalis Purpurea All including water from cut flowers May be fatal. Heart trouble. Abdominal pain, vomiting, diarrhea, hypotension, collapse. Birds, Horses, Children Glycosides digitalin and digitoxin. Saponins.
Foxtail Barley Hordeum Jubatum Seedheads   Irritantion, stomach trouble, adscesses. All Animals  
Fruit Salad Plant (Philodendron)   All   Dermatitis, diarrhoea, burning in mouth.    
Gaultheria     Harmful if eaten in large quantities.      
Geranium       Mild dermatitis.    
German Ivy   Leaves and Berries   Dermatitis, gastrointestinal trouble.   Saponins
German Primula       Skin allergy, nauseas and vomiting.    
Giant Dumb Cane   Sap Revocer after 3 days. Repeated vomiting and diarrhoea.    
Giant Hogweed Heracleum Mantegazzianum     Dermatitis, Burns Children  
Glacier Ivy   Leaves and berries.   Dermititis, gastrointestinal trouble.    
Gladiolas         Dogs  
Glory Lily Gloriosa Superba All, specially tuberous roots. Poisonous Nauseas and vomiting. Children  
Gold Dieffenbachia   Sap Revocer after 3 days. Repeated vomiting and diarrhoea.    
Golden Chain Tree   All, specially beans. Severe poisoning, is fatal. Excitement, convulsions and coma. Staggering.   Alkaloid Cytisine
Granny's Bonnets     Harmful if eaten in large quantities.      
Greater Burdock Arctium Lappa Burs   Skin Irritation, oral irritation. Dogs  
Ground Ivy         Horses, Children  
Groundsel         Horses  
Hahn's Self-Branching English Ivy   Leaves and Berries   Dermatitis, gastrointestinal trouble.   Saponins
Hairy Nightshade Solanum Physalifolium Fruit Slightly Poisonous   Children  
Hash Cannabis Sativa L. All Not fatal. Body weakness, vomiting, trembling, breathing trouble. All animals, Horses Tetrahydrocannabinol, alkaloids, glycosides.
Heartleaf Philodendron   All   Dermatitis, burning mouth, diarrhoea.    
Hellebore     Very Poisonous   Horses, Children  
Hemlock Conium Maculatum All specially young plants and seeds. One of the most poisonous plants.   Horses  
Hemp Cannabis Sativa L. All Not fatal. Body weakness, vomiting, trembling, breathing trouble. All animals, Horses Tetrahydrocannabinol, alkaloids, glycosides.
Henbane     Toxic if eaten. Vomiting and Nauseas. Horses  
Herb Paris         Horses  
Holly Ilex Aquifolium Berries, Rest of Tree   Stomachache, temors, loss of balance. Children  
Honeysuckle   All, specially Berries   Vomiting, diarrhoea and lethargy.    
Horse Tail Equisetaceace All     Horses and cattle.  
Horse Chestnut Aesculus Hippocastanum Buds, nuts, leaves, bark, seedlings, honey. Conkers Harmful if eaten in large quantities. Salivations, gastrointestinal irritation, vomiting, trembling, breathing trouble, paralysis, coma, death. All animals, children Saponic glycoside aesculin. Alkaloids
Horse Head Philodendron   All   Dermatitis, burning mouth, diarrhoea.    
Horse Radish         Horses  
Hurricane Plant   Bulb        
Hyacinth Hyacinth Orientalis Bulb May be fatal. Dermatitis, gastrointestinal trouble. Nauseas, vomiting, diarrhea. Children, Dogs Alkaloid Toxins
Hydrangea         Children  
Iceland Poppy Papaver Nudicaule All, specially sap. Very poisonous.   Children  
Indian Hemp         Children  
Indian Rubber Plant            
Indian Turnip Arisaema triphyllum All   Burning to the mouth, hallucinations. All animals Crystals of Calcium Oxalate
Inkweed Phytolacca Octandra All, specially black berries.     Children  
Iris   Tubers   Servere digestive trouble, dermatitis. Horses, Children, Dogs Glycoside iridin.
Italian Arum Arum Italicum All, Specially orange berries     Children  
Ivy Hedera Heliz All including black berries.   Diarrhoea, vomiting, spasms, paralysis. Children  
Jack in the Pulpit Arisaema triphyllum All, specially roots.   Burning to the mouth, hallucinations. All animals, Children Crystals of Calcium Oxalate
Japanese Show Lily         Cats  
Japanese Spindle Tree Euonymus Japonicus Berries and Seeds Harmful if eaten in large quantities.   Children  
Japanese Wax Tree Toxicodendron Succedanea     Blistering, skin inflammation, irritation. Children  
Japanese Yew Taxus Cuspidata Foliage, Berries, bark, seeds. Very poisonous, death can be sudden without symptoms. Digestive trouble, dry mouth, dizziness, vomiting. Seizures, cardiac and breathing trouble. All animals, Horses Alkaloids (taxines)
Jasmine   Sap and Berries Fatal Digestive trouble. Nervous system.   Solanine Glycoalkaloids, Atropine Toxins.
Jequirty Bean Abrus Precatorius All Seeds highly toxic. Can be fatal. One or two seeds causes death. Also causes dermatitis. Children Abrin, glycoside.
Jerusalem Cherry Solanum Pseudocapsicum All, includes immature Growths and unripe berries. Berries are very poisonous Gastrointestinal trouble, dermatitis, dysphagia, tachycardia, seizures, depression, paralysis. Birds, Children Solanine Glycoalkaloids. Toxic levels of Nitrates. Atropine
Jimson Weed Datura Stramonium L. All, specially seeds. May cause death. Abnormal thirst, distorted sight, delirium, coma. Vomiting, diarrhea, seizures, paralysis. All animals, Children Alkaloids Atropine, Scopolamine, hyoscyamine, toxic levels of nitrates.
Johnsongrass            
Jonquil         Children  
Juniper         Children  
Karaka Corynocarpus Laevigatus Kernel     Children  
Kingcup     Harmful if eaten in large quantities.      
Kowhai Sophora Microphyllia Yellow seeds Poisonous is eaten obly if they are ground up or crushed.   Children  
Laburnum Laburnun Anagyroides Black Seeds if they are chewed or crushed. Seeds very poisonous.   Horses, Children  
Lacy Tree Philodendron   All   Diarrhoea, dermatitis, mouth burning.    
Larkspur Consolida Seeds and young plants. May be fatal. Stomach upset, depression, heart trouble. Dermatitis. Horses, Children Alkaloids, Delphinine.
Lantana Lantana Camara Green Berries Planta is Hepatogenic Can be fatal. Lungs, heart, kidneys, nervous system. Children Lantodene.
Laurel   All Harmful if eaten in large quantities. Nauseas, vomiting, depression, difficult breathing, coma. Children  
Lenton Rose     Harmful if eaten in large quantities.      
Leopard Lily       Skin allergy, nauseas and vomiting.    
Leyland Cypress     Sometimes causes allergy. Skin allergy.    
Lily of the Valley Convallaria mejalis All Highly Toxic Heart trouble, digestive trouble. Hyperexcitability, nauseas, vomiting, drowsiness, brain damage. Birds, Horses, Children, Dogs Glycosides, convallarin, convallamarin.
Lobelia Tupa       Skin allergy.    
Locust   Foiliage, sprouts, bark.   Nauseas, vomiting and weakness.    
Locoweed Astragalus Emoryanus Leaves   Hyperexcitability, nauseas, vomiting, drowsiness, brain damage. Birds, Horses Swainsonine, alkaloids, methemoglobin.
Linseed         Horses  
Lupìne Lupinus Perennis All specially pods with seeds.   Breathing trouble, trembling, coma, death. Sheep, Horses, Children Alkaloids, d-lupanine.
Mallow     Harmful if eaten in large quantities.      
Marsh Marigold     Harmful if eaten in large quantities.   Horses  
Marble Queen            
Marijuana Cannabis Sativa L. All Not fatal. Body weakness, vomiting, trembling, breathing trouble. All animals, Horses Tetrahydrocannabinol, alkaloids, glycosides.
May Apple Podophyllum Peltatum L. Foliage, fruit and specially roots. Children can eat with no effect, but several cause strong diarhea. Severe diarrhoea, hematological abnormailities. Conjunctivitis and keratitis. Children 16 active toxic agents.
Meadow Rue     Harmful if eaten in large quantities.      
Meadow Saffron     Highly Toxic Nauseas and vomiting. Horses, Children  
Melilot         Horses  
Mercury         Horses  
Mexican Breadfruit (Split leaf philodendron)            
Mezereon     Can be mortal. Nauseas, vomiting, dizziness.    
Milkweed Asclepias Syriaca L. All, latex. Sometimes causes allergy. Skin allergy, nauseas, vomiting, diarrhea, hypothermia, irregular heart rate. Birds, Cattle, Sheep, Goats, Horses, Poultry. Cardenoloids
Mistletoe Phoradendron Villosum Berries, leaves and stems A few berries can be fatal to small animals and Children. Gastrointestinal trouble, dermatitis. Hypothermia, irregular heart beat. Birds, Children Viscumin, viscotoxin Toxic Albumins
Monkshood Aconitum Napellus All, specially roots.   Digestive trouble, heart trouble. Horses, Children Alkaloid Toxins
Moonseed   Berries (blue resembling wild grapes.) May be fatal. Convulsions    
Morning Glory Ipornoea Seeds Are hallucinogenic drugs. Stomach Ache, Hallucinations Children  
Moroccan Broom     Harmful if eaten in large quantities.      
Mother in Law         Children  
Moth Plant Araujia Sericefera Latex and Fruit     Children  
Mountain Laurel     Harmful if eaten in large quantities.      
Mushrooms some varieties       Children  
Naked Lady Lilly   Bulbs   Upset stomach, hyperactivity, coma, shock    
Narcissus Narcissus Spp. Bulbs May be fatal. Nauseas, vomiting, diarrhoea, dermatitis. Children, Dogs  
Needlepoint Ivy   Leaves and Betties   Gstrointestestinal trouble, dermatitis.   Alkaloid Toxins
Nettle Urtica Urens     Dermatitis Children  
Ngaop Myoporum Laetum       Children  
Nightshade Solanum Spp. All, specially unripened berry. Can be fatal. Intense gastrointestinal trouble. Iregular heart rate, dysphagia, tachycardia. Birds, Children Belladonna, atropine.
Oak Tree Quercus Spp. Foliage and Acorns Effects don't appear instantly can appear days later. Takes a large ammount for poisoning. Kidneys affected. Anorexia, diarrhea, polydipsia. Birds, Horses, Children Tannins
Oleander Nerium Oleander All, if used as cut flowers water too. Can be mortal. Heart Trouble, digestive trouble. Dermatitis, Vomiing, diarrhea, anorexia, nauseas, irregular heart rate, confusion, collapse. All animals, Birds, Children, Horses Glycosides : oleandin, oleandroside, neroside.
Onion     Never feed to dogs. Anemia, kidney and liver trouble. Dogs  
Opium Poppy Papaver Somniferum Avoid with children   Hallucinations Children  
Orange Day Lily         Dogs  
Oriental Lily     Cats are very prone.   Cats  
Ornamental Pepper Solanum Spp All   Intense gastrointestinal trouble.    
Parsnips Pastinaca Sativa   Toxic is allergic. May cause rashes when rubbed against skin. Children  
Paspalum   Sticky material in seeds.   Dermatitis    
Pasque Flower     Harmful if eaten in large quantities.      
Peace Lily   All   Dermatitis, gastrointestinal trouble.    
Peach Prunus Persica Stone and Leaf, Kernels     Children Cyanide
Pencil Cactus       Similar to LSD

Hallucinogenic

    
Pepper Tree Schinus Molle   Moderatelly Poisonous   Children  
Peruvian Lily     Sometimes causes allergy. Skin Allergy    
Philodendron Philodendron Scandens All, including roots.   Oral inflammation and swelling. Birds, Children Oxalates
Pimpernel         Horses  
Pineapple Broom     Harmful if eaten in large quantities.      
Poinsettia Euphorbia Pulcheriama Stem, leaves and sap. Sap can cause blindness if falls in eyes. Diarrhoea, gastrointestinal trouble, dermatitis. Blistering, Conjunctivitis All animals, Birds, Children Euphorbin, toxic levels of nitrates.
Poison Hemlock Conium Maculatum L. All, specially young leaves and seeds. Resembles a wild carrot. Highly toxic. Is fatal. Dermatitis, nervous system affected, depression, coma, death. All animals, Children, Horses Alkaloids : coniine, conidrine, coniceine, toxic levels of nitrates.
Poison Ivy Toxicodendron Radicans All Contains various poisons Blistering, skin inflammation, irritation. Dermatitis. Children  
Poison Oak   All Contains various poisons Dermatitis.    
Poison Sumac       Severe dermatitis and blistering.    
Poisonous Primula     Toxic if eaten Nauseas, vomiting, skin allergy.    
Pokeroot     Toxic if Eaten Vomiting and Nauseas.    
Pokeweed Phytolacca Americana Roots, leaves, berries. Toxic if Eaten Vomiting and Nauseas. Gastrointestinal ulcers. Birds Ricin like lectin, Saponin
Poppy     Harmful if eaten in large quantities.   Horses  
Poroporo Solanum Laciniatum Berries when green or yellow.     Children  
Potatoes Solanum Tuberosum All including tubers, sprouts and unripe berries.   Gastroenteritis, inrregular heart rate, dysphagia, tachycardia, seizure. Paralysis Birds, Horses, Children Solanine, Atropine
Pothos   All   Diarrhoea, dermatitis, mouth burning.    
Precatory Bean   Seeds   Gastrointestinal trouble   Toxalbumins
Primrose (Primula)   Leaves   Stomach trouble and dermatitis. Children  
Privet Ligustrum Ovalifolium Berries     Horses, Children  
Ragwort Senecio Jacobaea All Fatal Kidney and liver damage. Horses, cattle, dogs. Pyrrolizidine
Red Clover Trifolium Pratense All Minimal Female organs swell, infertility Horses  
Red Ink Plant       Nauseas and vomiting    
Red Maple   Leaves, specially dried.   Weakness, respiratory and cardiac trouble. Anemia. Horses  
Red Oak Quercus Rubra Buds, young shoots, sprouts, acorns.   Loss of appetite and weight, diarrhea, increased urination and drinking, edema, death. All, specially cattle. Gallotoxins.
Rhododendron Rhododendron Simsii All Can be fatal. Breating trouble, nauseas, vomiting, coma. Weakness, seizure. All, Children, Horses Andromedotoxin, Grayanotoxin
Rhubarb Rheum Rhabarbarum Leaves Large ammounts of raw or cooked leaves. Convulsions, coma and death, staggering, trembling, diarrhea. Horses, Cattle, Sheep, Goats, Children.  
Rosary Pea Abrus Precatorius All Seeds highly toxic. Can be fatal. One or two seeds causes death. Also causes dermatitis. Children Abrin, glycoside.
Rosebay       Nauseas and Vomiting    
Rose Periwinkle     Harmful if eaten in large quantities.      
Rue Ruta Graveolus     Nauseas, vomiting, dermatitis. Hand blistering. Children  
Rush         Horses  
Saddle Leaf Philodendron   All   Dermatitis, diarrhoea, mouth burning.    
Satin Pothos   All   Dermatitis, diarrhoea, mouth burning.    
Savin     Harmful if eaten in large quantities.      
Schefflera       Dermatitis, nauseas and vomiting.    
Silkweed     Harmful if eaten in large quantities.      
Silver Pothos   All   Dermatitis, diarrhoea, mouth burning.    
Skunk Cabbage         Children  
Smoke Bushes Cotinus Sap in stems, shoots and leaves.   Inflammation, irritation. Children  
Snowberry Bush Symphoricarpos Albus Berries     Children  
Snow on the Mountain         Children  
Solomon Seal     Harmful if eaten in large quantities.      
Soapwort Saponaria Officinalis All specially seeds and roots.   Mouth, stomach and intestinal irritations.   Saponins
Sorghum Grass       Urinary complications, bladder infections, can become fatal. Abortions, deformed foals. Horses Cyanide
Sorrel         Horses  
Spanish Broom Spartium Junceum Seeds, specially if chewed before swallowing.     Horses, Children  
Spindle Tree Euonymus Europaeus Pink Fruits, All tree Poisonous   Children  
Spotted Cowbane Cicuta Maculata All but specially roots.   Nervousness, beathing trouble, convulsions, death (may be sudden) All animals Cicutoxin
Spotted Dumb Cane   Sap and water flowers are in. 3 day recovery. Vomiting and diarrhoea.    
Spotted Water Hemlock Cicuta Maculata All, roots, specially poisonous. Extremely poisonous causes death. Nervousness, beathing trouble, convulsions, death (may be sudden) All animals Cicutoxin.
Spurge Laurel Euphorbia Lathyris White Sap   Dermatitis, nauseas and vomiting. Horses, Children  
Squill     Harmful if eaten in large quantities.      
Squirreltail Barley Hordeum Jubatum Seedheads   Irritantion, stomach trouble, adscesses. All Animals  
Staggerweed Senecio Jacobaea All Fatal Kidney and liver damage. Horses, cattle, dogs. Pyrrolizidine
Star of Bethlehem   Bulbs Harmful if eaten in large quantities. Vomiting and Nervous Excitement. Children  
Starflower     Harmful if eaten in large quantities.      
Stinking Iris Iris Foetidissima Orange seeds inside fruit.     Children  
Stinging Nettle Urtica Dioica Hairs, Stems and Leaves   Vomiting, breathing trouble, irritation, salivation.. All animals, Children  
St. James Wort Senecio Jacobaea All Fatal Kidney and liver damage. Horses, cattle, dogs. Pyrrolizidine
St Johns Wort Hypericum Perforatum All   Photosensitization Horses  
Subterranean Clover Trifolium subterranium All Minimal Female organs swell, infertility Horses  
Sudan Grass       Urinary complications, bladder infections, can become fatal. Abortions, deformed foals. Horses

 

  
Sumacs Toxicodendron Succedanea     Blistering, skin inflammation, irritation. Children  
Swallow Wort Chelidonium Majus     Dermatitis, burns. Children  
Swan Plant Gomphocarpus Fruticosus Latex and fruit     Children  
Sweetheart Ivy   Berries and Leaves   Gastrointestinal trouble. Dermatitis   Saponins
Swiss Cheese Plant   Sap or water flowers are in Cures in 3 days Mild vomiting and diarrhoea.    
Tall Fescue Festuca Arundinacea Seed head, stem and leaf.   Lameness, fever, death. Horses, cattle. Alkaloids
Tansy Senecio Jacobaea All Fatal Kidney and liver damage. Horses, cattle, dogs. Pyrrolizidine
Taro Vine Colocasia Esculenta All, roots and leaves.   Dermatitis, mouth burning and diarrheoa. Children  
Tarweed   Seeds are most toxic.   Liver trouble. Nervous disturbances. Lack of coordination, staggering. Horses  
Taxus     Highly Toxic   Children  
Thorn Apple Datura Stramonium All, specially seeds. May cause death. Abnormal thirst, distorted sight, delirium, coma. Vomiting, diarrhea, seizures, paralysis. All animals, Children Alkaloids Atropine, Scopolamine, hyoscyamine, toxic levels of nitrates.
Tiger Lily     Highly poisonous to cats.   Cats  
Timber Milk Vetch         Horses  
Titoki Alectryon Excelsus Seeds     Children  
Tobacco Nicotiana Spp. All   Vomiting, diarrhea, hyperexcitability, seizures, coughing, conjunctivitis, weakness, collapse, birth defects, death. Birds, pets, pigs, horses. Nicotine
Tomato Plant   Unripe fruit, stem and leaves.     Children  
Tree of Heaven Ailanthus Altissima     Dermatitis, burns. Children  
Tree of Life     Highly Toxic   Children  
Tree Philodendron   All   Diarrhoea, dematitis, mouth burning.    
Tropic Snow Dieffenbachia   Sapor water flowers are in. Cures in 3 days- Vomiting and diarrhoea.    
Tropical Periwinkle Catharanthus Roseus   Very Poisonous   Children  
Tulip Tulipa Spp.   Sometimes causes allergies. Skin allergies. Dogs  
Turutu Dianella Nigra Berries Poisonous   Children  
Tutsan Hypericum Androsaemum Berries Slightly Poisonous   Children  
Tutu Coriaria Arborea Berries Very Poisonous   Children  
Variegated Philodendron.   All   Diarrhoea, dematitis, mouth burning.    
Variegated Rubber Plant            
Varnish Tree Toxicodendron Succedanea     Blistering, skin inflammation, irritation. Children  
Vinca Rosea Catharanthus Roseus   Very Poisonous   Children  
Virginia Creeper Parthenocissus Quinquefolia Berries, leaves.   Vomiting, bloody diarrhea, drowsiness, renal failure. Birds Oxalic Acid
Water Hemlock Cicuta Maculata All, roots, specially poisonous. Extremely poisonous causes death. Nervousness, beathing trouble, violent convulsions, death (may be sudden) All animals, Children, Horses Cicutoxin.
Wax Tree Toxicodendron Succedanea     Blistering, skin inflammation, irritation. Children  
White Bryony Bryonia Dioica Roots, worse when dry.   Breathing trouble. Horses  
White Sweetclover Melilotus Alba All above ground parts.   Bruising, spontaneous bleeding. All animals  
Wild Barley Hordeum Jubatum Seedheads   Irritantion, stomach trouble, adscesses. All Animals  
Wild Cherrry   Leaves, Bark, Cherries Horses die minutes after eating it. Breathing trouble, no bowel control, lack of coordination, immediate death. Horses, Children  
Wild Black Cherry Tree Prunus Serotina Twigs and leaves. Fatal Anxiety, Breathing trouble, convulsions, collapse, death (can be sudden) All animals, Children Cyanide.
Wild Pepper     Can be mortal. Nauseas, vomiting, dizziness.    
Winter Rose Helleborus Niger All     Children  
Wisteria Wisteria Sinensis All, specially seeds and pods. Many children are poisoned by this plant. Highly toxic. Digestive trouble. Nauseas, strong vomiting, intense stomach pain, severy diarrhea, dehydration. Children  
Wolfs Bane       Nauseas and vomiting    
Wood Nettle Laportea Canadensis Hairs, Stems and Leaves   Vomiting, breathing trouble, irritation, salivation.. All animals  
Woody Nightshade       Nauseas and vomiting Horses  
Yellow Burr Weed   Seeds are most toxic.   Liver trouble. Nervous disturbances. Lack of coordination, staggering. Horses  
Yellow Star Thistle     Extremely Toxic to Horses   Horses  
Yellow Sweetclover Mehilotus Officinalis All above ground parts.   Bruising, spontaneous bleeding. All animals  
Yew Taxus Baccata Foliage, Berries, bark, seeds. Very poisonous, death can be sudden without symptoms. Digestive trouble, dry mouth, dizziness, vomiting. Seizures, cardiac and breathing trouble. All animals, Horses, Children Alkaloids (taxines)