| Name | Toxic part | symptoms |
| Apple, Malus domestica | seeds | The seeds from the apple are very poisonous. They contain ARSENIC |
| Apple of peru, Nicandra physalodes | Seeds especially | Same family as deadly nightshade |
| Arum lily, Zantedeschia aethiopica | All parts especially berries | Burning in the mouth and throat, stomach pain and vomiting. Rapid onset of symptoms |
| Asparagus, Asparagus officinalis | Berries | Mildly poisonous |
| Aubergine, Solanum melongena | | In the same family as deadly nightshade, the fruit of this plant must never be eaten raw. Leads to vomiting and convulsions. |
| Autumn Crocus/ Star of Bethlehem, Colchicum autumnale | Bulbs | Initial gastrointestinal symptoms during the first 24 hours are followed by more severe effects including convulsions, cardiovascular collapse, multi-organ failure and blood clots forming in many places around the body. Muscular weakness and ascending paralysis cause respiratory arrest. The effects have been described as very similar to cholera leading to a slow, agonising death but consciousness remains to the end. Ingestion of the plant in mistake for wild garlic has caused deaths. |
| Azaleas, genus Rhododendron | All parts | Fatal. Produces nausea and vomiting, depression, difficult breathing, prostration and coma. |
| Beans, genus Leguminosae | Raw beans | These vegetables should not be eaten RAW, Severe indigestion, Always cook your beans, Certain types can be fatal |
| Beech, Fagus | nuts | This tree can grow up to 40 Metres (130ft) high. There are several varieties including Copper Beech. The leaves are light green in Spring, maturing to a darker shade in late Summer. In Autumn dark brown scaly husks fall to the ground, they contain triangular seeds known as Beech nuts. If only a few seeds or nuts have been eaten soreness of the mouth and throat may occur, but larger quantities such as fifty or more vomiting, diarrhoea, headache, dizziness and even fainting have been reported. The symptoms usually appear about an hour or two after eating and may continue for several hours. |
| Belladonna/ Deadly Nightshade, Atropa bella-donna | All parts, especially the unripened berry | Fatal. Intense digestive disturbance and nervous symptoms. The berries are extremely poisonous. Even after eating one or two they can cause breathing difficulties, convulsions, hallucinations and coma. Without medical treatment they can cause death. The sap of the plant can cause a blister type rash. |
| Bitter sweet/ woody nightshade, Solanum dulcamara | Purple flowers and red berries | Leads to vomiting and convulsions. The strength of its actions is said to be very dependent on the soil in which it grows with light, dry soils increasing its effects. |
| Black henbane/ hog bean, Hyoscyamus niager | berries | So poisonous that even smelling it can cause giddiness. Causes dry mouth, thirst, difficulty in swallowing and speaking, warm flushed skin, dilated pupils, blurred vision and photophobia, vomiting, urinary retention, tachycardia, pyrexia, drowsiness, slurred speech, hyperreflexia, auditory, visual or tactile hallucinations, confusion and disorientation, delirium, agitation and combative behaviour. In severe cases there may be hypertension, coma and convulsions. |
| Black Nightshade, Solanum nigrum | Berries especially when still green | Leads to vomiting and convulsions. The strength of its actions depends on the ripeness of the berry – less poisonous when black. |
| Bluebell/ Wild Hyacinth, Hyacinthoides non-scripta | The bulbs and seeds are poisonous and can often be mistaken by children as small onions. | Diarrhoea, stomach pains. The sap from bluebells and related plants such as hyacinths can cause skin allergies. |
| Bracken Fern, genus Pteridium | all | Carcinogenic if ingested. Causes internal bleeding and white blood cell anaemia. |
| Broom, Cytisus scoparius | Seeds, pods | Seed pods look like peas About 30 seeds, 6 seed pods can be fatal If eaten in large quantities can affect the heart and nervous system. |
| Angel’s trumpet, genus Brugmansia | sap | Very sweet smelling plant Ingestion of a little sap can cause throat to swell Difficulty in swallowing |
| Bryony, Bryonia alba | Root | Nausea and vomiting |
| Buttercup – Ranunculus acris | All parts especially celery leaved buttercup (Ranunculus sceleratus) | Irritant juices may severely injure the digestive system. Harmful if eaten, skin irritant. The bulb of the plant if eaten can cause poisoning in children. The rest of the plant although poisonous is not as toxic as the bulb. Can cause digestive upsets and if handled skin rash. |
| Catnip, Nepeta faassenii | All parts | A volatile oil, nepetalactone, is present but its exact nature is undefined. It is thought to be an abortificant. The effect of catmint on humans is of a lot less interest than its action on cats where it seems to be a stimulant leading to its being called 'cannabis for cats'.It is said to make humans quarrelsome if ingested. |
| Celandine, Ranunculus ficaria | Roots and the bright yellow juice from the stem | Causes burning and irritation when in contact with the skin – traditionally used to burn off warts. Acute hepatitis if injected |
| cherries –Wild, Prunus avium and cultivated, genus prunus | Twigs, foliage | Fatal. Contains a compound that releases cyanide when eaten. Gasping, excitement and prostration are common symptoms. |
| Comfrey Symphytum officinale | Leaves | Although used as a general tonic, can be harmful if ingested in too larger quantity or over a period of time |
| Common tansy, Chrysantheumum vulgare | All parts | Nausea, vomiting, convulsions and death |
| Crab apple, Malus sylvestris | Pips | Like many fruit-bearing trees, the pips contain cyanolipids from which cyanide can be obtained. |
| Cuckoo Pint/ Lords and Ladies, Arum maculatum | All the plant is poisonous, the red berries are sweet tasting especially tempting to children. | Will cause burning to the mouth, lips and throat. More serious affects are vomiting, stomach cramps, muscular cramps, dizziness and, if eaten in large amounts, coma and death. |
| Cyclamen, genus Cyclamen | Bulbs | strong purgative |
| Daffodil Hyacinth, genus Narcissus | bulb | Nausea, vomiting, diarrhoea, staggering, collapse, unconsciousness, coma, death in a few hours, 250g can be fatal |
| Delphinium/Larkspur, Consolida regalis | All parts, especially young plants | Digestive upset, restlessness, salivation, nausea, vomiting, nervous excitement, vertigo, depression. May be fatal. |
| Dock leaf, Rumex obtusufolius | Chrystals found on surface of plant | The toxic component is calcium oxalates. These needle-shaped crystals can irritate the skin, mouth, tongue, and throat, resulting in throat swelling, breathing difficulties, burning pain, and stomach upset. |
| Dogs mercury, mercurialis perennis | all | Nausea, vomiting and diarrhoea. Larger doses cause lethargy, jaundice, painful urination, apparently by making the urine acid, and coma before death. |
| Elder, Sambucus nigra | All parts, especially roots | Children have been poisoned by using pieces of the pithy stems for blowguns. Nausea and digestive upset. The berries are poisonous when they are raw. Heating destroys toxins, hence wine making , pies etc. Diarrhoea, vomiting, stomach pains, weakness. In more severe cases coma. |
| Elephant’s ear, Bergenia cordifolia | Root | Intense burning and irritation of the mouth and tongue. Death can occur if base of the tongue swells enough to block the air passage of the throat. |
| Foxglove, Digitalis purpurea | All parts | Large amounts cause dangerously irregular heartbeat and pulse, heart attack, usually digestive upset and mental confusion. May be fatal. Large amounts of toxin are rarely absorbed into the system as vomiting is the main reaction. |
| Fritillary, Fritillaria meleagris | All | Though not fully investigated, it is believed the plants have effects similar to the genus veratrum. Some sources suggest it is a cardiac poison. |
| Giant hogweed/ cow parsley, Heracleum mantegazzianum | All parts | Can cause injury to the skin and sun exposure after contact with the sap of this plant can result in reddening, stinging and fluid filled blisters which usually occur within 24 hours of contact. The hollow stems are an attraction to children for use as a "pea shooter". |
| Groundsel, Senecio vulgaris | All parts | Liver failure and death |
| Hellebore/ Christmas rose, genus Helleborus | Roots | Nausea and vomiting – potentially fatal. Can cause skin irritation after direct contact |
| Hemlock Water dropwort, Oenanthe crocata | All parts | The roots contain the greatest concentration of the toxins, especially in the winter. A small amount of raw plant material is fatal causing nausea, convulsions, excessive salivation and dilated pupils. Death comes quickly. The roots have been eaten in mistake for parsnips and the stems have been eaten as celery. |
| Hemlock, Conium macaltum | All parts, especially young plants and seeds | Burning sensation in mouth, salivation, diarrhoea and involuntary urination. Later neurologic signs, including muscle tremors, muscular weakness, dim vision, coma and convulsions. Death comes from respiratory failure. |
| Holly, Ilex aquifolium | berries | Although the berries are not very poisonous, if a small amount is eaten, two can cause nausea and obviously the more that are consumed the worse the symptoms, vomiting, diarrhoea and abdominal pains. |
| Horse Chestnut, Aesculus hippocastanum | fruit | Children tend to play with the "conkers" which are poisonous if eaten, also the bark, flowers and young leaves are toxic. Stomach upsets including vomiting are usual results from eating this plant. Eating large quantities which is unlikely can be extremely serious and can lead to unconsciousness or death. |
| Icelandic poppy, Papaver radicatum | sap | Skin irritation upon contact |
| Iris, genus Iris | Underground stems | Severe-but not usually serious-digestive upset. |
| Ivy, Helix hedera | The berries but any of the plant can cause a skin reaction. | Vomiting and burning sensation in the mouth and throat. Usually a rash or blistering will appear if handled by anyone with a sensitive skin. |
| Jack-in-the-Pulpit, Arisaema triphyllum | All parts, especially roots | contains small needle-like crystals of calcium oxalate that cause intense irritation and burning of the mouth and tongue. |
| Jasmine, genus Jasminum | Berries | Fatal. Digestive disturbance and nervous symptoms. |
| Juniper, Juniperus communis | Oils contained in the needles | It is capable of causing gastrointestinal upset though there is disagreement about how serious this could be. It has also been shown to contain high levels of isocupressic acid which is known to be an abortificant. |
| Laburnum, laburnum anagyroides | Seeds, pods | Severe poisoning, Excitement, Staggering, Convulsions and coma., About 30 seeds, 6 seed pods can be fatal |
| Laurels, family Lauraceae | All parts | Fatal. Produces nausea and vomiting, depression, difficult breathing, prostration and coma. |
| Lily-of-the-Valley, Convallaria majalis | Leaves, flowers | Irregular heart beat and pulse, usually accompanied by digestive upset and mental confusion. |
| Lobelia, genus Lobelia | | Vomiting, Convulsions, May be FATAL |
| Lupin, genus Lupinus | seeds | Cause vomiting and convulsions. |
| Mistletoe, Viscum album | Berries | Fatal. Both children and adults have died from eating the berries. It causes pale lips, inflamed eyes, dilated pupils, slow pulse, hallucinations and coma and may result in hepatitis. Native mistletoe is said to not be excessively toxic but imported varieties can be stronger. |
| Monkshood, Aconitum napellus | All parts extremely poisonous | Used by Chinese as poison for poison darts Restlessness, nervous excitement, salivation, Digestive upset , nausea, vomiting, vertigo and DEATH |
| Morning glory, family Convolvulaceae | all | produces horrific hallucinations |
| Oaks, genus Quercus | Foliage, acorns | Affects kidneys gradually. Symptoms appear only after several days or weeks. Takes a large amount for poisoning. |
| Old man’s beard/ traveller’s joy, Clematis vitalba | All | severe abdominal pain, gastrointestinal irritation and has caused death in cattle |
| Oleander, Nerium oleander | Leaves, branches | Extremely poisonous. Affects the heart, produces severe digestive upset and has caused death. |
| Parsnip and wild parsnip, patinaca sativa | All parts | Is known to contain furocoumarins which can make the skin sensitive to light. |
| Pasque flower, pulsatilla vulgaris | All parts | The plant is a member of the same family as Buttercup and contains the glycoside ranunculin. It has a very bitter taste which produces an immediate burning in the mouth. Fatal in a large amount |
| Periwinkle, Vinca major/minor | All parts are poisonous if eaten. | Vomiting, stomach cramps and diarrhoea. |
| Potato, Solanum tuberosum | All except tubers | Same family as Deadly Night shade ALL PLANT POISONOUS Except the tubers |
| Poppy, Genus Papaver | All parts | All parts of the papaver species are poisonous if eaten except for the seeds, but various alkaloids are present in all parts of the plants. Only if eaten in large quantities will the plant have any ill effects. |
| Primrose (Primula vulgaris), Primula (genus primula) or Cowslip (Primula veris) | | The plant if handled can cause skin irritation and if eaten digestive disturbances. |
| Rhododendron family Ericaceae | All parts | Fatal. Produces nausea and vomiting, depression, difficult breathing, prostration and coma. |
| Rhubarb, Rheum rhabarbarum | Leaf blade | Fatal. Large amounts of raw or cooked leaves can cause convulsions, coma, followed rapidly by death. |
| Rue, Ruta graveolens | Leaf | Ingestion causes vomiting, diarrhoea, epigastric pain, acute gastroenteritis hepatic and renal impairment. Seizures may be observed. Death can occur due to liver failure. In women, uterine haemorrhage and abortion may occur. |
| Sneezewort, Veratrum album | All parts | Nausea, repeated vomiting, drowsiness, dizziness, salivation, dilated pupils and loss of breath. It severely damages the nasal passages due to the poison in the aroma. The irritation caused results in sneezing. It was used in sneezing powder until the full extent of the harm was understood. |
| Snow berry, Symphoricarpos albus | Berries | It is a gastrointestinal irritant capable of causing vomiting, bloody urine and delirium but its emetic effect is so strong that the berries are usually expelled undigested. |
| Snow drop, Galanthus nivalis | All parts, especially the bulb | Dizziness, stomach ache, nausea, vomiting and diarrhoea. Most people recover but a fatal dose is said to result in trembling and convulsions prior to death. |
| Snow flake, Luecojum aestivum | All parts, especially the bulb. | Although similar in appearance to the snopdrop, this plant contains Lycorine, the active ingredient, has been shown to be present in a similar concentration to that present in Narcissus spp. And so this plant induces the same symptoms. |
| Solomon’s seal, Polygonatum odoratum | All parts | Contains poisons but in very low quantity. Can cause bruising |
| Soya, Glycine max | Seeds and pods when eaten raw | These vegetables should not be eaten RAW Contain inhibitors for protein ingestion |
| Spindle, Euonymus europaeus | All parts contain poison but the berries have this in the highest quantities | Symptoms appear up to 12 hours after ingestion and involve diarrhoea, vomiting and stimulation of the heart. Larger doses can cause hallucinations, loss of consciousness and symptoms similar to meningitis. |
| Spurges, Euphorbia | All parts | The milky sap of spurges burns the mouth – there are many types of euphorbia |
| Stinging nettles, Urtica dioica | Stinging hairs on leaves | Although nettles can be eaten when cooked like spinach, it is the stinging hairs on the uncooked plant which cause the problem. When in contact with the plant the skin reddens and little white bumps appear on the skin feeling very sore, turning to a constant itching which could last for a couple of days. |
| Sweet peas, Lathyrus odoratus | All parts | Will make you severely sick. If enough ingested can be fatal |
| Thorn apple, Datura stramonium | All parts especially the seeds | Often mistaken for angel’s trumpet (brugmansia). Confusion, delirium and hallucinations are the principal effects with drowsiness, sleep or coma generally following. Dilation of the pupils. Agitation, convulsions and death. |
| Tomato, Solanum lycopersicum | All except fruit | Same family as Deadly Night shade ALL PLANT POISONOUS Except the FRUITS |
| Viper’s bugloss, Echium vulgare | All parts | Liver failure |
| White willow, Salix alba | Bark | Aspirin. Can cause stomach irritation and bleeding |
| Wild pepper /spurge flax, Thymelaea passerina | All parts, especially berries, bark and sap. | The sap irritates the skin. Non-fatal doses cause vomiting, diarrhoea, stomach pain and a burning sensation in the mouth. Larger doses add to these shivering, dilation of the pupils, convulsions and damage to the oral passages and the intestine. |
| Wisteria, Wisteria sinensis | Seeds, pods | Mild to severe digestive upset. Many children are poisoned by this plant. |
| Wood Anemone, Anemone nemorosa | All parts especially sap | Although the Wood Anemone is not poisonous as such it can still be toxic causing damage to the mouth and digestive system if in contact with the sap. Blistering of the skin if handled, ulceration to the mouth and digestive and urinary system. |
| Yew, Taxus baccata | Berries, foliage | Fatal. Foliage more toxic than berries. Death is usually sudden without warning symptoms. |
| Agaricus praeclaresq-uamousus, Agaricus praeclaresq-uamousus | | Poisonous |
| Black Helvella, Helvella lacunosa | | Poisonous |
| Blackish-purple russula, Russula undulata | | Poisonous |
| Boletus luridus var. luridus, Boletus luridus var. luridus | | Poisonous |
| Brown roll rim, Paxillus involutus | | Poisonous |
| Chestnut dapperling, lepiotacastanea | | Deathly |
| Clitocybe phyllophila, Clitocybe phyllophila | | Poisonous |
| Common earth ball, Scleroderma citrinum | | Poisonous |
| Common Ink Cap, Coprinopsis atramentaria | Causes alarming symptoms when taken in conjunction with alcohol. | If no alcohol has been taken the Common Ink Cap is edible, but if alcohol has been consumed a few days before, to a few days after eating it, signs of poisoning can occur. Rapid pulse, dizziness, nausea, vomiting and confusion are the common signs. This varies with each individual’s sensitivity to this type of poisoning. |
| Common white helvella, Helvella crispa | | Poisonous |
| Cortinarius cinnabarinus, Cortinarius cinnabarinus | | Poisonous |
| Cortinarius semisanguineus, Cortinarius semisanguineus | | Poisonous |
| Death cap, Amanita phalloids | | Lethal |
| Destroying Angels, Amanita virosa | cap | You become violently ill with severe vomiting and severe diarrhoea You then get BETTER only to die a week or so later from total internal organ failure |
| Emetic russula, Russula emetica f. longpipes | | Poisonous |
| Fairy Cake/ Poison Pie, Hebeloma crustuliniforme | All parts | Breathing difficulties, dizziness, headache, vomiting and diarrhoea. The symptoms usually appear within two hours of consuming and recovery within 24 hours unless severe. |
| False Morel, Gyromitre esculenta | | Poisonous |
| Fenugreek milkcap, Lactarius helvus | | Poisonous |
| Fly Agaric, Amanita muscaria | | This fungi is very attractive to children and adults alike as the bright colours are very tempting to touch The symptoms can appear after a very short time drowsiness, twitching and a death like sleep, vivid visions and even coma. Symptoms usually subside after about 7 or 8 hours. There has been at least one reported death after eating this fungi. |
| Fried chicken, Lyophyllum connatum | | Poisonous |
| Galerina autumnalis, Galerina autumnalis | | Poisonous |
| Inocybe geophylla var. geophylla, Inocybe geophylla var. geophylla | | Poisonous |
| Inocybe geophylla var. lilacina, Inocybe geophylla var.lilacina | | Poisonous |
| Inocybe rimosa, Inocybe rimosa | | Poisonous |
| Inocybe lacera, Inocybe lacera | | Poisonous |
| Laughing Jim, Gymnopilus junonius | | Poisonous |
| Lepiota aspera, Lepiota aspera | | poisonous |
| Liberty cap, Psilocybe semilanceata | | Poisonous. Hallucinogenic. Magic mushrooms. |
| Lilac bonnet, Mycena pura f. pura | | Poisonous |
| Mountain moss Psilocybe, Psilocybe Montana | | Poisonous |
| Mower’s mushroom, Panaeolus foenisecii | | Poisonous |
| Panaeolus ater, Panaeolus ater | | Poisonous |
| Panaeolus fimicola, Panaeolus fimicola | | Poisonous |
| Panaeolus sphinctrinus, Panaeolus sphinctrinus | | Poisonous |
| Panther cap, Amanita pantherina | | Poisonous |
| Pluteus salicinus, Pluteus salicinus | | Poisonous. Hallucinogenic |
| Ramaria Formosa, Ramaria formosa | | Deadly |
| Russula drimeia, Russula drimeia | | Poisonous |
| Sarcodon scabrosus, Sarcodon scabrosus | | Poisonous |
| Scaley earth ball, Scleroderma verrucosum | | Poisonous |
| Scleroderma areolatum, Scleroderma areolatum | | Poisonous |
| Sulphur knight Tricholoma sulphureum | | Poisonous |
| Sulpher tuft, Psilocybe fascicularis | | Poisonous |
| The gemmed mushroom, Amanita gemmata | | Poisonous |
| Yellow stainer, Agaricus xanthoderma | | Poisonous |