The leaves, flowers, and especially the berries are toxic. Ingestion causes hemorrhagic gastroenteritis and, in severe cases, neurological symptoms (muscle tremors, convulsions) and death.

Fabaceae family (Faboideae subfamily): Abrus, Japanese Mimosa (Poinciana), Robinia pseudoacacia, Wisteria, Laburnum.

It is considered moderately toxic, as your pet would need to ingest a significant amount in a very short time to become poisoned.
However, be aware that ingestion can cause hemorrhagic gastroenteritis or neurological symptoms in severe cases.
Signs of poisoning may include lethargy, vomiting, diarrhea, loss of appetite, or seizures.
Fabaceae family (Mimosoideae subfamily): acacia, cassia, mimosa, mulga, tamarind.

Monkshood (Aconitum napellus) is also known as Jupiter’s Helmet. This ornamental plant is extremely toxic. The diterpenoid alkaloids present in the plant, especially aconitine, have powerful negative effects.

Symptoms: Nervous and cardiovascular system disorders. At high doses, the toxic effects can lead to cardiac or respiratory arrest.

Ranunculaceae family such as creeping buttercup, pasque flower or nigella.

Aloe vera is a plant highly valued for its therapeutic properties, but also very common in homes as a decorative plant.
The saponins and aloins contained in its leaves are highly toxic to dogs, which may chew the leaves or lick the sap.
Symptoms: severe digestive problems, irritation, and even neurological disorders.
It belongs to the Liliaceae family, but its growth pattern is similar to that of cactus.

Poisoning occurs through ingestion of the bulbs or leaves. It is mainly characterized by the classic combination of symptoms: salivation, vomiting, and diarrhea.

Rarely, nervous symptoms (sedation, convulsions) and cardiovascular symptoms (hypotension, slowed heart rate) may appear.

Amaryllidaceae family: daffodil, snowdrop, silphiums, amaryllis, clivia, and vegetables such as onions, chives, leeks and garlic.

The strawberry tree, sometimes called the strawberry tree, is a shrub species that grows throughout the Mediterranean region. Its fruit is called an arbutus berry. It can also be found in other regions because it is a hardy shrub.

As a reminder, grapes are toxic to dogs because they are high in tannins.

It can cause mild colic and vomiting.

Ericaceae family, a family of flowering plants (Angiosperms) in the order Ericales.

Citrus fruits are dangerous for dogs, whether through contact or ingestion.
Symptoms: irritation and sometimes digestive upset.
Rutaceae family, three genera: Fortunella, Poncirus, and Citrus.

The pits and seeds are toxic to animals. Once swallowed, they release a deadly toxin, hydrogen cyanide. The pits can also become lodged in the trachea and cause suffocation.

See Calla

The azalea is a beautiful plant, but all its parts are toxic!

Even in very small doses, ingestion causes oral irritation and digestive problems.

At high doses, the toxins cause muscle tremors, paralysis, ataxia and bradycardia, arrhythmia, and liver complications that can lead to death.

The andromedotoxin present in the plant becomes lethal at doses as low as 0.2% of body weight consumed. (A 10 kg dog risks its life by ingesting only 20 grams of leaves).

Ericaceae family: Azalea, Heather, Rhododendron

Poisoning from ingesting begonias is relatively rare. This is because the most toxic part of the plant is located in the roots.

Begoniaceae family: rex begonia, bamboo begonia, tuberous begonia, hardy begonia…

Poisoning from fresh plants is rare because the taste of these plants seems really repulsive.

The plant contains compounds similar to atropine. This causes constipation, dilated pupils, rapid heartbeat and breathing, increased thirst and urination, muscle tremors… Symptoms usually disappear within 2 to 6 days. Poisoning is rarely fatal.

Solanaceae family: Belladonna, Datura

This plant causes serious problems in both pets and humans.
The plant’s stems and leaves contain toxins that can cause skin burns and blisters. The toxin is more concentrated in the sap, which is released when the plant is damaged or broken.
Apiaceae family (Umbelliferae)

This small, bushy shrub is often found in hedges or borders. It has dense, evergreen foliage. The flowers are white and grow in clusters.
All parts of the plant are toxic, and poisoning occurs through ingestion. Boxwood is bitter, so the amount ingested is usually small. However, a few grams of leaves can be enough to kill a small dog.

Symptoms: onset within the first few hours, vomiting, diarrhea. When a larger quantity has been ingested, the animal may appear lethargic, have convulsions, or even experience paralysis.

Buxaceae family

The calla lily, more commonly known as arum lily, is a bulbous plant that is entirely toxic. It contains calcium oxalate, and its ingestion can cause convulsions, swelling of the mouth, tongue, and lips, as well as excessive salivation.

Araceae family

It is highly toxic, causing severe nervous depression that can lead to death.
Cannabaceae family, a botanical branch closely related to hops.

Monk’s Hood contains calcium oxalate, which causes severe irritation of the mouth and throat if ingested.
Symptoms: salivation and vomiting.
Araceae family

The fruits of oak trees (acorns) are dangerous because they are toxic if ingested. Dogs may eat them playfully or out of gluttony.

Green acorns are much more dangerous than ripe ones. Problems can arise after a single ingestion of a large quantity of acorns, but more often than not, they result from the prolonged ingestion of smaller amounts. The dog may mistake this for a game and repeat the habit.

Signs of poisoning include lethargy, vomiting, constipation followed by diarrhea. The liver is more affected than the kidneys. Treatment is difficult once symptoms appear. It is essential to prevent your dog from playing with or eating acorns in the garden or during walks.

Fagaceae family: oaks, holm oaks, cork oaks, beeches, birches, chestnut trees, hazel trees, alders…

The toxins are present in the bulbs and to a lesser extent in the leaves. In small doses, these plants cause local irritations: mouth (excessive salivation), digestive system (vomiting, diarrhea), skin (dermatitis, etc.). Recovery is generally achieved within 1 or 2 days.

Family of lilies with digestive toxicity: Tulip, Chlorophytum (Phalangium), Hyacinth, Sansevieria.

They contain pyrethrins, which affect the digestive and nervous systems.
Asteraceae family

Chives, also known as civet, are toxic to pets (in all their forms: fresh, dried, powdered, etc.). They contain n-propyl disulfide, which causes oxidative damage, blood pressure problems, and other health issues.

Symptoms vary depending on the amount consumed, including gastrointestinal problems, weakness, lethargy, etc.

Amaryllidaceae family (formerly Liliaceae or Alliaceae): garlic, onion, leek (they are also toxic to animals).

Fortunately, their bitter taste repels dogs.
However, if ingested, the following symptoms may occur: skin irritation, diarrhea, and excessive salivation.
Ranunculaceae family

It is highly toxic and can affect many organs, potentially causing death.
Colchicaceae family

Poppies, especially their unripe seeds, are dangerous for dogs. Ingestion can cause respiratory problems and a slowed heart rate.

Papaveraceae family: These plants almost all contain alkaloids that can be toxic.

All parts of the plant are highly toxic. The toxicity due to cytisine present in the plant affects the dog’s nervous system.

Within 4 to 5 hours after ingestion: appearance of dilated pupils, motor problems, nervousness, dizziness, salivation and convulsions.

In severe cases, coma and then death by asphyxiation occur within 4 hours of the onset of the first symptoms.

Fabaceae family

The autumn crocus is toxic in all its parts, but particularly the bulb, flowers, and seeds. It contains tropane alkaloids, which are extremely toxic to dogs and can cause serious kidney problems, organ failure, and even death.

Iridaceae family: crocuses, irises, gladioli…

This fairly common houseplant can cause irritation and vomiting in animals.
Family Euphorbiaceae, subfamily Crotonoideae: Croton Petra, Croton Tamara, Croton Iceton, Croton Mammi.

The cycad is found in our gardens but also in pots indoors. It resembles a small palm tree.

The leaves and seeds contain substances that are highly toxic to the liver. Just two seeds are enough to kill a small dog.
Symptoms appear at different times depending on the individual: from one hour after ingestion to two or three days later.

The first signs are digestive (vomiting, diarrhea) followed by neurological symptoms (tremors, weakness, gait disturbances). The mucous membranes may appear yellow.

The prognosis is guarded or even poor, depending on the extent of liver damage. The chances of recovery depend largely on the speed of intervention.

The Gymnosperm group, which includes conifers.

Cycadaceae family

The leaves, stems, but especially the roots of the Cyclamen are toxic.

The sap is irritating. Ingestion of the roots leads to destruction of red blood cells, gastroenteritis, convulsions and can eventually result in the death of the animal.

Primulaceae family

The leaves, flowers, and especially the berries are toxic.
Ingestion causes hemorrhagic gastroenteritis and, in the most severe cases, neurological symptoms (muscle tremors, convulsions) and then death.
Family: Fabaceae or Legumes: Abrus, Japanese Mimosa (Poinciana), Black Robinia pseudoacacia, Wisteria, Laburnum.

The dahlia is toxic but not very dangerous.
Irritation, itching, and digestive upset are relatively minor.
Asteraceae family, Asteroideae subfamily

Poisoning from fresh plants is rare because the taste of these plants seems really repulsive.

The plant contains compounds similar to atropine. This causes constipation, dilated pupils, rapid heartbeat and breathing, increased thirst and urination, muscle tremors… Symptoms usually disappear within 2 to 6 days. Poisoning is rarely fatal.

Nightshade family: Belladonna, Datura

The leaves and stems of Dieffenbachia are toxic. Despite this, the risk of poisoning is very low. Its leaves are highly irritating, and dogs usually spit out any ingested pieces very quickly. After this unpleasant experience, there is very little chance they will do it again.

The latex found in the stems and leaves can be caustic and cause severe oral pain, salivation, and swelling of the tongue and throat, which can interfere with swallowing and breathing. Nausea, vomiting, and diarrhea may occur after ingestion or licking. When latex gets into the eye, it can cause severe irritation that may lead to ulceration.

Araceae family also includes the Philodendron and the Monstera.

This plant is highly toxic.

Symptoms appear 2 to 3 hours after ingestion. These are generally digestive, neurological (tremors, weakness, etc.), and cardiac problems. The animal may also have difficulty urinating. Traces of blood may be visible.

Scrophulariaceae family: approximately twenty species of highly toxic herbaceous plants.

The dragon tree, or Dracaena fragrans, is an air-purifying plant for your home, but it is also toxic, causing vomiting in most cases.
Asparagaceae family: Agave, Anthericum, Aphyllanthes, Asparagus, Convallaria, Loncomelos, Muscari, Ornithogalum…

Rosehip poisoning occurs through the ingestion of the leaves, flowers, or branches.

The leaves and flowers contain cyanogenic glycosides. Ingested in large quantities, the hydrocyanic acid produced by fermentation of these cyanogenic glycosides can cause respiratory and nervous system disorders.

Rosaceae family

All parts of this exotic-looking plant can be dangerous. This includes the roots, leaves, and even the seeds.

Ingesting any part of the plant can cause diarrhea, vomiting, and even liver failure.

Araceae family: Alocasia, Caladium, Colocasia, Hestia, Monstera, Philodendron, Sauromatum, Zamioculcas…

It is the fruit in particular that is toxic. It triggers excessive salivation, gastroenteritis, and, in rare cases, neuromuscular symptoms (drowsiness, incoordination, sometimes convulsions). Recovery is usually complete within a few days.

Solanaceae family: Belladonna, Datura

See Monstera

The ficus is a common ornamental plant in our homes. Its toxicity is linked to its sap, which has highly irritating properties.

Symptoms: vomiting, diarrhea, mouth irritation and salivation.

Sap spraying into the eyes can cause corneal damage. In cats, it can lead to facial swelling and kidney damage.

Moraceae family

It’s a plant with white, red, or green flowers, commonly found in our homes.
Poisoning occurs through ingestion or chewing of the plant. The sap has irritating and toxic properties.

Symptoms: salivation, vomiting, diarrhea. Your pet may experience difficulty breathing and kidney problems. Damage can be severe and appear up to 2 weeks after ingestion.

Araceae family

This small holly is often included in bouquets during the Christmas season. The small red berries can be ingested, with relatively mild effects, unless a large quantity is consumed.

Symptoms: diarrhea or vomiting. (The leaves are never eaten because they have prickly edges).

Asparagaceae family

It contains methyl salicylate, a substance that can be toxic to dogs if ingested.
Ericaceae family

They contain two types of terpene alcohols: geraniol and linalool, which are highly irritating to the digestive tract and cause vomiting, loss of appetite, and lethargy.
Geraniaceae family, 4 genera: Geranium, Pelargonium, Erodium, and Monsonia.

This plant is toxic. Ingestion of any part causes excessive salivation, vomiting, copious drooling, lethargy, and diarrhea in animals.

Iridaceae family: crocuses, irises, gladioli

The leaves, flowers, and especially the berries are toxic. Ingestion causes hemorrhagic gastroenteritis and, in severe cases, neurological symptoms (muscle tremors, convulsions) and death.

Fabaceae or Legumes family: Abrus, Japanese Mimosa (Poinciana), Robinia pseudoacacia, Wisteria, Laburnum

Clinical signs appear within hours of ingesting the berries and depend on the amount ingested.

The animal exhibits excessive salivation, vomiting, and sometimes bloody diarrhea. Neurological symptoms may appear, such as an abnormal gait, uncoordinated movements, balance problems, paralysis, and can progress to coma. Ingestion of large quantities of berries can be fatal.

Santalaceae family

Hydrangeas are toxic to dogs because they contain numerous harmful substances (including hydrogen cyanide) that can cause vomiting, diarrhea, and cardiac and neurological problems.
Hydrangeaceae family

Holly leaves and berries are also toxic to pets if ingested.
They may exhibit digestive symptoms (diarrhea, vomiting, etc.) or even neurological symptoms (drowsiness, coma, etc.) if a large quantity of berries is ingested.
Aquifoliaceae family

The is one of the most deadly plants.

It is a conifer often used as a hedge in gardens or as a specimen tree. Its berries and needles are extremely toxic; the concentration of toxic alkaloids is highest in autumn.

Ingesting this plant, even in small quantities, can lead to balance problems, convulsions, and then death very quickly.

Taxaceae family

Consuming too much of them can cause digestive problems in your dog, such as diarrhea, gas, or even vomiting. They also contain traces of xylitol, a potentially toxic substance.

Rosaceae family: Roses, meadowsweet, rowan trees, photinias…

Poisoning occurs through ingestion of the bulbs or leaves. It is mainly characterized by the classic combination of symptoms: salivation, vomiting, and diarrhea.

Rarely, nervous symptoms (sedation, convulsions) and cardiovascular symptoms (hypotension, slowed heart rate) may appear.

Amaryllidaceae family

The plant is toxic. Ingesting daffodil bulbs or flowers can cause symptoms such as vomiting, excessive salivation, and abdominal pain. In severe cases, breathing difficulties, tremors, and even convulsions may occur.

Amaryllidaceae family: daffodil, snowdrop, silphiums, amaryllis, clivia, and vegetables such as onions, chives, leeks and garlic.

Common hemlock, also known as dog parsley, is a plant commonly found in gardens and along roadsides.
It contains conin, which can cause digestive and nervous system disturbances if ingested.
Apiaceae family (formerly Umbeliferae)

The Philodendron is very toxic.

The toxins are present in the sap (latex) that seeps out through wounds in the plant or exudes from the leaves. The latex is highly irritating to any tissue it comes into contact with. It causes excessive salivation, a burning sensation, respiratory distress, vomiting, and also keratitis, a corneal ulcer, if the sap gets into the eye.

The calcium oxalates contained in philodendron cause intense burning of the mucous membranes at doses as low as 0.5 grams per kilogram. For a small dog weighing 5 kg, even a single chewed leaf triggers a severe inflammatory reaction.

Araceae family

Photinia is known to have a low level of toxicity for dogs, but the berries can be slightly toxic to pets.
Rosaceae family: roses, meadowsweet, rowan trees, thornbush, photinias.

It is dangerous for dogs.
The fruit can cause gastric upset (vomiting and abdominal pain) and can even be fatal.
Solanaceae family

Poinsettia leaves secrete a sap that can irritate your dog or cat’s mouth and esophagus.
If ingested, they may cause nausea or vomiting, but your pet would have to consume a significant amount for a more serious reaction.
Euphorbiaceae family

The sweet pea is a shrubby plant with seeds and pods that are toxic to dogs.
Fabaceae family

It is the fruits in particular that are toxic.

They trigger hypersalivation, gastroenteritis, and, in rare cases, neuromuscular signs (drowsiness, incoordination, sometimes seizures). Recovery is usually complete within a few days.

Solanaceae family

Primroses are common plants in our gardens.

They can be toxic to dogs if ingested, causing vomiting and diarrhea. They can also cause eye and skin irritation if your dog touches them.

Primulaceae family

The plum kernel contains the highest concentration of cyanide, but the roots and leaves are also extremely toxic.
Symptoms: difficulty breathing, excessive salivation, weakness, collapse, or persistent vomiting.
Rosaceae family: Wild cherry (extremely toxic; stems, leaves, and seeds all contain a form of cyanide)

Buttercups are highly prized because their flowers are brightly colored and shaped like large pom-poms or buds. All buttercup species are dangerous to both humans and animals.

It contains a dangerous substance called proto-anemonin, which causes a kind of irritation or even a burning sensation when it comes into contact with a mucous membrane.

On the skin: blisters and itching, on the eye: inflammation of the eyelid or conjunctiva, if ingested: digestive disorders (vomiting, diarrhea, hypersalivation).

In severe cases, neurological and/or renal disorders or even death can occur within hours.

Also called: buttercup, Persian buttercup, coyote eye.

Ranunculaceae family

All parts of the Rhododendron contain a toxic substance that can be fatal.

A very small dose causes oral irritation and digestive problems. A larger dose causes muscle tremors, paralysis, ataxia, bradycardia, arrhythmias, then liver complications and finally death.

Grayanotoxin present in rhododendron poses a deadly danger at doses of 3 grams per kilogram of dog weight.

Ericaceae family: Azalea, Heather, Rhododendron

Rhubarb belongs to the same family as buckwheat: therefore, it is also toxic! The toxicity of rhubarb is due to the calcium oxalate contained in this long stalk, which is edible for humans.

Symptoms caused by rhubarb ingestion in dogs include hypersalivation, vomiting, tremors, and in the most serious cases, the development of kidney failure.

Polygonaceae family: sorrel, rhubarb, buckwheat

The toxins are present in the bulbs and to a lesser extent in the leaves.

In small doses, these plants cause local irritations: mouth (hypersalivation), digestive system (vomiting, diarrhea), skin (dermatitis, etc.). The condition usually improves within 1 or 2 days.

Liliaceae family with digestive toxicity: Tulip, Chlorophytum (Phalangium), Hyacinth, Sansevieria

Virginia creeper turns a vibrant red in autumn and is laden with blue berries. While this climbing plant is beautiful, the small blue berries are toxic to both humans and pets. The berries, seeds, and leaves contain oxalic acid. If ingested, the tiny, microscopic, and very sharp crystals cause intense burning of the oral mucosa.

Symptoms: vomiting, lethargy, anorexia, hypothermia, abdominal pain, oral pain, diarrhea.

Warning: clinical signs can appear 24 hours after ingestion and last for several weeks. (One bunch of grapes can be fatal to a 10kg dog).

Vitaceae family

This shrubby plant is very common. All its parts are toxic. Yucca leaves are very hard, pointed, and rough, and are therefore almost never chewed by dogs. The roots pose the greatest danger.

In small doses, these plants cause local irritations: mouth (hypersalivation), digestive system (vomiting, diarrhea), skin (dermatitis, etc.). The condition usually improves within 1 or 2 days.

In the most serious cases, it can cause hypothermia and neurological disorders ranging from paralysis to coma.

Agavaceae family