
Stinkhorn mushrooms are a wide family of fungi with many subtypes and unusual appearances. They are generally not considered edible by humans and are not listed as toxic. However, dogs are attracted to their foul odour, which resembles decaying animal flesh or cat droppings. While stinkhorns are not considered poisonous, dogs that ingest them may experience gastric irritation and symptoms such as vomiting, diarrhoea, lethargy, and in rare cases, death.
| Characteristics | Values |
|---|---|
| Are stinkhorn mushrooms toxic to dogs? | Sources suggest that stinkhorn mushrooms are not listed as toxic to dogs, but some sources also state that they are toxic to dogs. |
| Symptoms of stinkhorn mushroom ingestion in dogs | Lethargy, vomiting, diarrhea, black mucousy stool, bloody mucousy stool, and vomiting bile. |
| Recommended course of action if a dog has ingested stinkhorn mushrooms | Seek veterinary advice. In some cases, treatment with activated charcoal may be recommended to induce vomiting and prevent dehydration. |
| Appearance of stinkhorn mushrooms | Off-white, tough, egg-shaped structure with a white, pink, or orange slender stalk and a dark curved tip. |
| Odor of stinkhorn mushrooms | Foul, likened to decaying animal flesh or cat droppings. |
| Locations where stinkhorn mushrooms are found | Eastern US, Europe, Asia, Australia, wooded areas, lawns, mulched beds, and rich cultivated soils. |
| Seasonality of stinkhorn mushrooms | Late summer and early fall |
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What You'll Learn
- Stinkhorn mushrooms are not considered toxic to humans
- Dogs are attracted to stinkhorn mushrooms due to their rotting meat smell
- Stinkhorn ingestion can cause lethargy, vomiting and diarrhoea in dogs
- Stinkhorns are not considered poisonous but can cause gastric irritation in dogs
- Stinkhorn ingestion may result in more serious symptoms if dogs ingest other mushrooms

Stinkhorn mushrooms are not considered toxic to humans
Stinkhorn mushrooms are considered 'Noxious' for their foul odour, which is useful in attracting insects and other invertebrates that spread the spores to new locations. The mushroom releases a pungent, "rotting flesh" or "sewage" smell that catches the nose. The foul smell is attributed to the presence of a host of volatile compounds within the slimy exudate or gleba.
Despite their unpleasant odour, stinkhorns are eaten in a variety of ways, including as salad toppings, in soups, incorporated into sausages and pickled items, and even as a short-term food preservative.
However, it is important to note that there are several species of deadly poisonous fungi that exist in Florida and around the world. Therefore, if you choose to consume stinkhorn mushrooms, it is crucial to correctly identify each fungus to the species level.
While stinkhorn mushrooms are not considered toxic to humans, they can cause gastric irritation in dogs. Dogs are particularly attracted to stinkhorns due to their smelly exposed spore mass. If your dog has ingested a wild mushroom, it is recommended to seek veterinary advice or contact an animal poisons centre for guidance.
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Dogs are attracted to stinkhorn mushrooms due to their rotting meat smell
Stinkhorn mushrooms are not considered poisonous to humans. However, dogs are attracted to stinkhorn mushrooms due to their rotting meat-like smell. The foul odor, likened to decaying animal flesh or cat droppings, is produced by the mushroom's spore mass. This smell attracts flies and other insects that feed on the slime and spread the spores to other areas. Dogs, with their sensitive sense of smell, are enticed by this odor and may ingest the mushrooms.
Stinkhorn mushrooms are not directly toxic to dogs, but they can cause gastric irritation and other symptoms such as vomiting, diarrhea, and lethargy. In some cases, dogs may experience more severe reactions, including bloody mucousy stools and convulsions. While stinkhorn mushrooms themselves may not be the sole cause of these symptoms, it is crucial to monitor your dog's health and seek veterinary advice if any concerning symptoms arise.
The risk of dogs ingesting stinkhorn mushrooms can be mitigated by keeping them on a leash in parks and removing any mushrooms from your yard or places accessible to your pets. Additionally, it is recommended to keep your dogs away from areas with a high presence of wild mushrooms, especially after rainy weather, which promotes their growth.
The distinctive shape and odor of stinkhorn mushrooms make them hard to miss. They are usually found in wooded areas, lawns, and mulched beds during late summer and early fall. Taking proactive measures to avoid exposure and seeking prompt veterinary treatment if ingestion occurs can help ensure your dog's well-being.
Overall, while stinkhorn mushrooms are not directly toxic, the attraction they hold for dogs due to their rotting meat-like smell can lead to health risks. Responsible pet ownership and vigilance in environments where stinkhorn mushrooms may be present are key to preventing potential harm to your furry companions.
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Stinkhorn ingestion can cause lethargy, vomiting and diarrhoea in dogs
Stinkhorn mushrooms are not considered poisonous to humans, and no human fatalities have been recorded as resulting from their consumption. However, dogs are particularly attracted to stinkhorns due to their foul odor, which is likened to that of decaying animal flesh or cat droppings. While stinkhorns are not listed as toxic to dogs, ingestion can cause lethargy, vomiting, and diarrhea.
In one case, a 45-pound dog that ingested a couple of elegant stinkhorn mushrooms (Mutinus elegans) exhibited signs of lethargy, vomiting, and diarrhea. The veterinarian expressed surprise at these symptoms, as elegant stinkhorns are not considered toxic. They suggested that the dog might have ingested other mushrooms or plant material, and recommended a visit to an emergency clinic for further evaluation.
Stinkhorn ingestion can cause gastric irritation in dogs, and in some cases, it may lead to more severe symptoms. For example, a report from the 7th annual meeting of the American Medical Association in 1854 described a young person who, after eating a stinkhorn mushroom (Clathrus cancellatus), suffered from painful stomach tension, violent convulsions, loss of speech, and a prolonged state of stupor.
It is important to note that while stinkhorns are generally not considered highly toxic to dogs, ingestion can still lead to serious health issues. In some cases, dogs have died from eating wild mushrooms, including stinkhorns. To prevent stinkhorn ingestion by dogs, it is recommended to keep them on a leash in parks and remove any mushrooms from yards or places accessible to pets.
If your dog has ingested a stinkhorn mushroom and is exhibiting symptoms such as lethargy, vomiting, or diarrhea, it is important to seek veterinary advice promptly. Treatment with activated charcoal soon after ingestion can help prevent long-term effects, and early veterinary intervention can induce vomiting to prevent the fungi from causing serious health issues.
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Stinkhorns are not considered poisonous but can cause gastric irritation in dogs
Stinkhorn mushrooms are not considered poisonous, but they can cause gastric irritation in dogs. Dogs are more likely to ingest mushrooms than cats, and they are particularly attracted to stinkhorns due to their foul odor, which resembles decaying animal flesh or cat droppings. This smell is intentional, luring insects to feed on the mushroom's sticky spore mass and aiding in spore dispersal.
While stinkhorns are not directly toxic, some dogs have exhibited symptoms such as vomiting, diarrhea, lethargy, and bloody mucousy stools after ingestion. In one case, a veterinarian expressed surprise at these symptoms resulting from elegant stinkhorn (Mutinus elegans) ingestion, suspecting the involvement of other ingested materials or mushrooms.
The severity of symptoms may depend on the dog's size, as smaller dogs are at a higher risk of adverse effects from stinkhorn ingestion. A small dose can be fatal for a small dog, while a larger dog may only experience mild illness. If left untreated, dehydration from vomiting and diarrhea can lead to death.
To prevent stinkhorn ingestion by dogs, it is recommended to remove any mushrooms from your yard or lawn and keep your dog on a leash in parks during the late summer and early fall when stinkhorns are more prevalent. Stinkhorns have a short lifespan and will disappear rapidly, so waiting a day or two is usually sufficient for them to go away.
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Stinkhorn ingestion may result in more serious symptoms if dogs ingest other mushrooms
Stinkhorn mushrooms are not considered poisonous to humans or dogs. However, dogs are attracted to stinkhorn mushrooms and ingestion may result in gastric irritation and more serious symptoms. The foul odor of stinkhorn mushrooms, likened to decaying animal flesh or cat droppings, is believed to attract dogs and facilitate the mushroom's reproduction by distributing spores through insect feeding. While stinkhorn mushrooms are not directly toxic, their ingestion by dogs can lead to vomiting, diarrhea, lethargy, and in rare cases, black mucousy stool indicating digested blood.
The reported symptoms following stinkhorn ingestion may be indicative of a more serious issue. In one case, a veterinarian expressed surprise at the severe symptoms displayed by a dog that ingested stinkhorn mushrooms, suggesting the possibility of ingestion of other mushrooms or plant material. The veterinarian recommended an emergency clinic visit for proper diagnosis and treatment. This highlights the importance of seeking professional advice if your dog exhibits any unusual symptoms after consuming stinkhorn mushrooms.
While stinkhorn mushrooms themselves are not lethal, they can act as an attractant for dogs, potentially leading to the ingestion of other, more toxic mushrooms in the vicinity. Some mushrooms, such as the Death Cap (Amanita phalloides), are highly toxic and can be life-threatening, even in small amounts. Therefore, it is crucial for dog owners to be vigilant and prevent their dogs from consuming any wild mushrooms, including stinkhorns, to mitigate the risk of accidental poisoning.
The size of the dog also plays a role in the severity of symptoms. Smaller dogs are more susceptible to the toxic effects of stinkhorn mushrooms, and even a small dose can be fatal. Larger dogs may experience milder symptoms, but they can still become dehydrated through vomiting and diarrhea, which can be life-threatening if left untreated. Early treatment by a veterinarian is crucial to induce vomiting and prevent the serious health effects of mushroom poisoning.
To summarize, while stinkhorn mushrooms are not considered toxic, their ingestion by dogs can lead to gastric irritation and more serious symptoms, especially if other mushrooms or toxic substances are ingested concurrently. Dog owners should be vigilant in preventing their dogs from consuming any wild mushrooms and seek professional advice if their dog exhibits any unusual symptoms.
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Frequently asked questions
Stinkhorn mushrooms are not considered poisonous to humans and are not listed as toxic to dogs. However, dogs are attracted to the foul odour of stinkhorns, which resembles decaying animal flesh or cat droppings, and ingestion can cause gastric irritation and symptoms such as vomiting, diarrhoea, lethargy, and black mucousy stool.
If your dog has ingested a stinkhorn mushroom, it is recommended to seek veterinary advice. While stinkhorns are not listed as toxic, ingestion can cause gastric irritation and other symptoms, and in some cases, dogs have shown signs of more serious illness. Early treatment by a veterinarian is critical, as there is currently no antidote to the toxin.
To prevent your dog from eating stinkhorn mushrooms, it is advisable to keep them on a leash when in parks or wooded areas, especially after rainy weather, as wet and humid conditions promote the growth of these fungi. Additionally, remove any mushrooms from your yard or lawn before your dog has a chance to play with or eat them.
Stinkhorn mushrooms have a distinctive appearance, often resembling horns or other appendages, with colours ranging from white, tan, green, orange, red, with black ends. They typically grow in wooded areas, lawns, mulched beds, and rich cultivated soils, and are commonly found in the eastern US, Europe, Asia, and eastern Australia.

























