What Mushrooms Are Harmful To Dogs

  • Phalloides Amanita (death cap)
  • Margated Galerina (deadly Galerina)
  • Gemmata Amanita (jeweled death cap)
  • Muscaria amanita (fly agaric)
  • species of Gyromitra (false morel)
  • Mushrooms of the Inocybe genus and Clitocybe dealbata.

What types of mushrooms are harmful to dogs?

The Amanita species are by far the mushrooms that cause dog poisonings in North America.

The Galerina species as well as Amanita phalloides (death cap), Amanita pantherina (panther cap), and Amanita muscaria (fly agaric). A dog owner recently lost two of her dogs in North Carolina after they ate mushrooms from her yard. Traces of amatoxin, a toxin present in toxic mushrooms, were detected in blood testing.

Lethargy, stumbling, panting, whining, dizziness, salivation, vomiting, tachycardia, and collapse are the symptoms that dogs exhibit most commonly. Despite the fact that few fatalities are documented, the culprit mushroom is frequently never found to be the cause of the symptoms. Additionally, it is unclear how much of the majority of mushrooms must be consumed to manifest symptoms of poisoning.

This nation has seen a rise in the practice of gourmets and health-food devotees searching for edible mushrooms. However, when searching for edible mushrooms or eating any type of wild mushroom, extreme caution must be used.

In the continental United States, toxic mushrooms can be found in many different places. Local authorities, like your state’s cooperative extension service, local poison control centers, and veterinary training institutes, might be useful in recognizing the dangerous mushrooms prevalent in your area.

If my dog eats a mushroom, what happens?

When dogs eat poisonous mushrooms, it causes mushroom poisoning. Typical signs to look out for include the following;

  • stomach discomfort, constipation, diarrhea that causes dehydration, nausea, and vomiting are examples of gastrointestinal problems.
  • liver-related symptoms including jaundice or skin yellowing
  • Lethargy
  • Drooling too much or ptyalism
  • a lack of cooperation
  • Seizures
  • Hallucinations
  • Coma

It’s vital to remember that the type of mushroom the dog ate and the amount consumed both have an impact on the severity of mushroom poisoning in dogs. “If a dog consumes wild mushrooms on a walk or even in the backyard, this should be viewed as an emergency and medical aid should be sought out right away,” advises Dr. Corinne Wigfall, DVM, BVM, BVS. Depending on the type and quantity consumed, eating mushrooms can result in kidney and/or liver failure, neurological symptoms, and even death. The initial symptoms of mushroom ingestion may include vomiting, diarrhea, ataxia (wobblyness), or tremors. Your dog might be able to recuperate at home if they have a minor stomach ailment. Intensive illness necessitates hospitalization. Poisoning from mushrooms can be extremely dangerous and even fatal. Dogs that have consumed a deadly fungus must be treated by a veterinarian.

Which mushrooms are suitable for dogs?

According to Schmid, dogs can typically consume store-bought or home-grown mushrooms that are safe for human consumption. These mushrooms are typical ingredients in many well-known and obscure recipes, including salads. White button, portobello, and shiitake mushrooms are all delicious.

However, all bets are off when it comes to the wild mushrooms that grow in the moist areas of our lawns or landscaping or the mushrooms we locate in the woods. The dangers of eating a poisonous mushroom are just as dangerous for dogs as they are for people, and many different kinds of mushrooms join the extensive list of other hazardous or unhealthy plants for dogs.

Do dogs get sick from garden mushrooms?

Yes, most mushrooms are safe for dogs to consume, to make a long story short. But that doesn’t imply that they ought to. Dogs don’t need to eat mushrooms, despite the fact that store-bought varieties like chanterelle, porcini, and morel are not harmful.

In the UK, 99% of the 15,000 species of mushrooms are edible. But even experts struggle to identify which ones are toxic. Therefore, it’s crucial to be aware that ingesting some varieties of wild mushrooms might have a disastrous effect on your dog’s health.

There truly isn’t such a thing as an edible wild mushroom when it comes to the health of your dog. Avoid letting your dog near any mushrooms at all.

How quickly can dogs become poisoned by mushrooms?

Mushrooms are a difficult toxin to manage since they can be difficult to recognize, their level of toxicity can range from negligible to fatal, they occur abruptly, and dogs can easily get them.

In general, mushrooms grow best in moist, warm climates, which can occur anytime between spring and October. There are numerous varieties of mushrooms, although understanding their precise names is not necessarily crucial. Mushrooms can be grouped into a few categories, including hepatotoxic, neurotoxic, gastrointestinal, and nephrotoxic, to help you remember them.


Knowing the name of the mushroom is crucial for identifying this particular species, and with names like death cap and death angel (Amanita phalloides), it is difficult to forget.

The rapid liver failure linked to these mushrooms is caused by amanitins, and because symptoms may not appear for 6–12 hours, owners may feel reassured. Pets may begin to exhibit signs of digestive distress after 6–12 hours, which will swiftly progress into liver failure. In severe situations, the pets will die one–two days after exposure.

Sadly, these mushrooms can be found all over North America, but they are especially widespread in the Pacific Northwest, some regions of California, and the northeastern United States.


Psilocybin (“magic”) mushrooms, hydrazines, and isoxazole mushrooms are the three main types of mushrooms that will give rise to neurological symptoms. With these mushrooms, the onset of symptoms will be quicker; within 30 to 90 minutes is typical, but less than six hours is likely.

  • Psilocybin exposures happen more frequently within than outside of homes because pets frequently consume the owner’s supplies.
  • The main substance to be aware of with hydrazine mushrooms is gyromitrin. There are neurological symptoms such as weakness, ataxia, tremors, and seizures, as well as normal gastrointestinal symptoms. Along with renal and hepatic dysfunction, these mushrooms may also be linked to hemolysis, methemoglobinemia, and other conditions (rare).
  • In addition to gastrointestinal symptoms, isoxazole mushrooms can also cause ataxia, confusion, hallucinations, vocalization, alternating lethargy and agitation, tremors, and seizures.


There is a sizable variety of mushrooms that might cause gastrointestinal symptoms, which can range from minor to severe. Another category of mushrooms whose symptoms can appear quickly, as early as 15 minutes after exposure, but usually less than six hours later.

The muscarinic mushroom is one kind in this group worth mentioning. These mushrooms will also result in bradycardia, bronchial secretions, and the usual SLUDDE signals in addition to potentially serious vomiting and diarrhea that may result in hypovolemia.


Cortinarius spp., or nephrotoxic mushrooms, are a more elusive class of mushrooms. Although there are reports of toxicity in humans, with the majority of those reports coming from Europe, there are no instances of accidental poisonings in dogs or cats. Similar to hepatotoxic mushrooms, symptoms may not appear right away (typically 12 hours but can be 3-8 days or longer). Polydipsia, polyuria, vomiting, nausea, and dehydration would be typical symptoms.


When a veterinarian is dealing with a mushroom intoxication, concern regarding mushroom identification will have to take a second seat to decontamination or symptomatic care of the pet due to the possible seriousness of mushroom exposure in a pet or the rapid onset of indications.

What kinds of wild mushrooms are lethal?

Seven of the Deadliest Mushrooms in the World

  • Amanita phalloides, sometimes known as the death cap mushroom.
  • Incocybe filaris Incocybe filaris
  • Webcaps, a species of Cortinarius mushroom.
  • Fall Skullcap (Galerina marginata)
  • Killing Angels (Amanita species)
  • Cornu-damae podostroma.
  • Killer Dapperling (Lepiota brunneoincarnata)

Do the tiny brown mushrooms on my lawn contain any poison?

It is not necessary to get rid of the mushrooms that are growing in your yard if you don’t have any pets or young children. Actually, the majority of mushrooms are good for the health of your grass.

Fungi, which include mushrooms, are vital organisms that feed on decaying organic materials. When they eat, they break down the food, allowing beneficial nutrients to be absorbed by the soil in your lawn. Mushrooms consume decomposing material like mulch, thatch, grass clippings, dead leaves, and limbs from fallen trees. They flourish in wet conditions, so a few days after a significant downpour you might notice mushrooms growing in your yard. On the other hand, if you overwater your lawn, mushrooms will tend to grow in such spots. They also thrive in humid environments and densely shaded locations, such as those that are covered with tree branches.

Are little lawn mushrooms toxic?

Contrary to any terrifying tales you may have heard, the majority of lawn mushrooms are entirely safe. Although it’s not advisable for you or your kids to eat them, if your pet accidently ingests one, nothing bad should happen.

Rarely do poisonous mushrooms grow in backyards, but when they do, there are a few telltale signs you can learn to spot to keep your family safe.

How to Spot Dangerous Mushrooms

It is impossible to expect you to instantly identify every toxic variety of mushroom because they occur in a wide variety of shapes, sizes, and colors. Fortunately, the majority of deadly mushrooms share a few common traits, including:

  • The mushroom’s underside is white rather than brown.
  • A ring encircling the mushroom’s stem
  • Red hue on the stem or cap
  • An unpleasant odor

Even if none of the aforementioned descriptions apply to the mushrooms on your yard, you should still seek medical attention right away if you, your family, or your pets exhibit any unusual symptoms after coming into touch with an unknown mushroom.

Some Mushrooms Can Help Your Lawn

Your family won’t often be harmed by mushrooms, but what about your lawn? You put a lot of effort into maintaining the health and beauty of your yard, and we know you don’t want something as minor as a mushroom to undo all your hard work.

However, you don’t need to be concerned about that either, as fungi can actually improve the general health of your lawn and promote development. Mushrooms can decompose layers of dead leaves and stems that can accumulate in your yard because they feed on organic waste. This gives you a cleaner lawn and prevents the accumulation of dead leaves from stunting the growth of your grass.

What kind of mushrooms are there in my yard?

The variety of wild mushrooms that can be found in forests and meadows varies greatly from one nation to the next.

But the same common backyard mushrooms can be found in gardens in towns across North America. Mycologists have also remarked that this is a worldwide occurrence.

Because of this, there are common species that flourish in gardens with moderate climates all over the world despite the fact that mushroom kinds vary from place to country.

Here are a few of the typical mushrooms that can be found in backyards:

Ringless Honey Mushroom (Armillaria Tabescens)

Both the honey mushroom and the ringless honey mushroom, which belong to the same family, are quite prevalent in urban yards from late summer through October.

Both have tall stems with dry, honey-colored heads that are frequently joined at the base. The absence of a ring on the stem of the ringless honey mushroom is the only distinguishing feature between the two. Thus, the name.

At the base of trees or stumps, these mushrooms can sprout in profusion in clusters. Although they occasionally appear to be emerging from the ground, they are actually growing on buried wood or roots.

Although edible, honey mushrooms should always be cooked before eating. Some people continue to have stomach pain, nausea, and cramping even after cooking.

Other mushrooms that resemble ringless honey mushrooms can be poisonous or even fatal. If you intend to eat them, a knowledgeable forager should confirm their identify.

Field or Meadow Mushroom (Agaricus Campestris)

One of the most popular wild mushrooms in Great Britain and Ireland is the field or meadow mushroom. It has a similar flavor and texture to the ordinary button mushroom and is closely linked to it.

In fields, meadows, and lawns, you can see them developing singly or in groups, as arcs or gradually widening rings known as fairy rings.

Their creamy-white, 1-4 inch (3-10 cm) diameter tops are round. Even when the mushroom is fully grown, the edges of the caps typically stay downturned or curled inward.

When the cap is sliced, the flesh should be thick and white, occasionally turning just a little pink, but never yellow.

Similar to portobellos, when the mushroom ages, the gills turn from a deep pink to a brown and then a dark brown color.

You could mistake various kinds of mushrooms for field mushrooms; some of them are edible, while others are harmful.

Common Stinkhorn (Phallus Impudicus)

The common stinkhorn belongs to a group of many stinkhorn species that are distinguished by their unpleasant scent and, when fully grown, their phallic shape.

Between the summer and the late fall, they are widespread in Britain, Ireland, Europe, and North America.

Where there is a lot of woody organic matter, such as in forests and mulched gardens, you can find them growing.

A foul, olive-green substance called a “gleba” covers the cap and the spores of a stinkhorn when it first appears.

They emit a potent odor that has been compared to that of decaying meat, luring insects that disperse the spores.

Despite their unpleasant odor, they are typically not toxic. People in some nations consume young stinkhorns, sometimes known as “eggs” due to their resemblance to eggs.

Pets are drawn to them because of their odor, but there have also been stories of small dogs being seriously ill after eating mature stinkhorns.

Mower’s Mushrooms (Panaeolus Foenisecii)

In the summer, lawns all over North America and Europe are covered in mower’s mushrooms, also known as haymaker’s or brown hay mushrooms.

These tiny brown mushrooms have caps that range in size from 0.4 to 1.2 inches (1-3 cm), and depending on how wet they are, they can be brown, orange-brown, or light beige in color.

Fortunately, Mower’s mushrooms, one of the mushrooms that kids regularly consume, are inedible but not very dangerous.

However, some lookalikes can be highly deadly, and it can be challenging to tell little brown mushrooms apart.

Therefore, if you have kids or pets, it’s generally advisable to get rid of any in your garden.

Shaggy Ink Cap (Coprinus Comatus)

Another fungus that frequently grows in backyards is the shaggy ink cap, commonly referred to as the shaggy mane or lawyer’s wig.

They emerge from the earth at first as white cylinders, and later a bell-shaped cap coated in scales unfolds.

This mushroom’s gills emit an inky black liquid that drips to the ground as it is ready to spore.

The fact that shaggy ink caps become black and disappear a short time after dispersing their spores makes them extra stranger.

When young, saggy ink caps are edible, but you must cook them fast to prevent them from turning into an inky muck.

It’s important to keep in mind that some mushrooms from the same family as shaggy ink caps don’t mix well with alcohol and can even cause a moderate toxin when combined.

Fly Agaric (Amanita Muscaria)

The fly agaric mushroom is the one that comes to mind when you say “toadstool.”

This enormous red or yellow mushroom is easily recognized by its white stem, gills, and cap scales.

Despite being regarded as toxic, there haven’t been many cases of poisoning from eating this fungus; instead, it’s more of a narcotic or hallucinogenic mushroom.

Fly agarics are remarkable because, although being dangerous, people in some nations eat them.

To lessen the toxicity before eating them, you must continually boil them, but even then, they may still make you unwell.

Fairy Ring Mushroom (Marasmius Oreades)

Fairy ring mushrooms, often called champignons or scotch bonnets, are widely available. In lawns and parks all over North America, Europe, Britain, and Ireland, they flourish.

They have pale brown, domed tops that are 0.8 to 2 inches (2 to 5 cm) wide, with edges that are wrinkled or grooved.

As the mushrooms mature, their white, free-standing gills eventually turn a light tan or cream color.

Fairy ring mushrooms have a sweet flavor and can be used in stews, soups, and sauces.

Giant Puffball (Calvatia Gigantea)

The Giant Puffball, or Calvatia Gigantea, is a plant that grows all throughout North America and other temperate areas of the world. It can reach a maximum size of 3 to 12 inches (7.5 to 30 cm) height and 8 to 24 inches (20 to 60 cm) wide.

Puffballs are a type of fungus that develop as solid spheres devoid of any gills, crowns, or stems.

While some people are fortunate enough to have enormous puffballs in their backyards, some of the most typical backyard mushrooms are smaller species of puffballs up to 2 inches (5 cm) in size.

Puffballs come in a variety of species, and they are all edible when young and have the white interior.

It’s important to correctly recognize juvenile puffball mushrooms before eating them since many toxic Amanita mushrooms resemble puffballs in their early stages of development.

Cut the puffball you think you have to be the right mushroom in two. The internal tissue ought to be solidly white, firm, and thick.

Throw away the mushroom if the interior has a mushroom form, gills, or any other black, brown, yellow, or purple coloring.

Green-Spored Parasol (Chlorophyllum Molybdites)

During wet spells throughout spring, summer, and autumn, the green spored parasol, also known as green lepiota or fake parasol, is highly prevalent in flower beds and lawns.

They have big white hats that are 4 to 12 inches (10 to 30 cm) in diameter and can be seen in groups or fairy rings.

Their gills are initially white and turn greenish to greenish-grey as their spores mature. Their caps include concentric bands of pinkish to brownish scales.

Due to their similar appearance and mushroom-like flavor and aroma, green-spored parasols are frequently mistaken for edible mushrooms. However, they are incredibly poisonous.

The emerald gills of an adult green-spored parasol are the most visible characteristic that sets them apart from edible mushrooms.

These are just a handful of the mushrooms that can flourish in city settings; if the mushrooms in your backyard are not one of the listed species, there is no issue. You can identify the mushrooms in your backyard with the aid of a useful index created by Urban Mushrooms that includes images.

Additionally, if you prefer using apps, you may identify garden mushrooms with the aid of a number of great mushroom identification applications.