
The false parasol mushroom (Chlorophyllum molybdites) is a toxic mushroom that grows in meadows, lawns, and parks across North America. It is also known as the vomiter due to the severe gastrointestinal problems it causes, including vomiting and diarrhea. False parasol mushrooms do not change colour when bruised or cut, which is a key difference between them and other parasol mushrooms, which do bruise. This guide will help you identify the false parasol mushroom and understand why it is important to distinguish it from similar-looking edible mushrooms.
| Characteristics | Values |
|---|---|
| Bruising | Does not bruise |
| Colour | White cap with white to light brown dots on the cap |
| Flesh | Thick, firm at first, softens with age |
| Stem | Thick, rounded, lacks the snakeskin pattern |
| Habitat | Meadows, lawns, parks |
| Season | Late summer to fall, after heavy rains |
| Toxicity | Poisonous, causes gastrointestinal issues |
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What You'll Learn

False parasol mushrooms are toxic and poisonous
False parasol mushrooms (Chlorophyllum molybdites) are toxic and poisonous. Also known as the vomiter, this mushroom is responsible for the greatest number of mushroom poisoning cases in North America. The false parasol is often confused with choice edible species such as Lepiota procera and L. rhacodes, due to its similar appearance. It is important to be able to distinguish between the two to avoid extreme gastrointestinal distress, which can include vomiting, diarrhea, and colic.
False parasol mushrooms can be identified by their lack of a snakeskin pattern on the stem, which is a key feature of the parasol mushroom. The flesh of the false parasol is thick and white, and while firm at first, it softens with age. Unlike the edible Leucoagaricus americanus, whose flesh will bruise and turn reddish-brown when cut or squeezed, the false parasol's flesh does not change colour when cut. Additionally, the false parasol has pinkish-brown gills, whereas the parasol mushroom's gills will bruise reddish-brown when fresh.
The false parasol mushroom is widespread and can be found in meadows, lawns, and parks, particularly in human-inhabited areas with maintained landscapes. It is most commonly found in eastern North America, but has also been reported in other parts of the world, including Scotland, Australia, and Cyprus. The mushroom typically appears after summer and autumn rains, but can be found from April through November in warmer climates.
To avoid poisoning, it is crucial to properly identify mushrooms before consuming them. If you suspect that you have ingested a poisonous mushroom, such as the false parasol, it is important to seek medical help immediately. Additionally, it is recommended to only consume mushrooms that are at least 12 cm in diameter to avoid mistaking them for smaller poisonous species.
While the false parasol mushroom is not known to be deadly, the severe gastrointestinal symptoms it causes are unpleasant and can be dangerous. It is always better to be safe than sorry when it comes to consuming wild mushrooms.
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They cause gastrointestinal distress, vomiting, and diarrhea
False parasol mushrooms (Chlorophyllum molybdites), also known as the "vomiter", are responsible for the greatest number of mushroom poisoning cases in North America. This is likely because they closely resemble several edible mushrooms, such as Lepiota procera and L. rhacodes. They are commonly found on lawns and pastures, particularly in the eastern regions of the continent, and in the state of California.
Ingesting false parasol mushrooms can lead to severe gastrointestinal distress, including nausea, vomiting, and diarrhea. These symptoms typically manifest within 1 to 3 hours of consumption and can be so unpleasant that they may put one off eating mushrooms ever again. In addition to gastrointestinal issues, false parasol mushrooms can also cause bloody stools, abdominal pain, and cramping. In rare cases, more severe symptoms such as liver and kidney damage, convulsions, and even death can occur. Therefore, it is crucial to seek immediate medical attention if you suspect that you or someone you know has ingested these mushrooms.
The key to distinguishing false parasol mushrooms from similar-looking edible species lies in the gills and spore print. False parasol mushrooms have white gills that transition to grayish-green or brownish-green as they mature. Additionally, their spore print is dull grayish-green, which sets them apart from edible parasol mushrooms.
To avoid accidental ingestion, it is important to learn how to identify false parasol mushrooms correctly. They are typically found in lawns, meadows, and other grassy areas, either alone or in groups, particularly after heavy rains during late summer and fall.
While false parasol mushrooms are not lethal in most cases, hospital treatment may be necessary in extreme cases due to dehydration resulting from vomiting and diarrhea. It is important to prioritize rehydration and seek medical advice to manage any other symptoms on a case-by-case basis.
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False parasols are white with light brown dots
False parasol mushrooms (Chlorophyllum molybdites) are white with light brown dots. They are also known as the green-spored parasol, Lepiota molybdites, fairy ring mushroom, yard mushroom, and green gill. They are the most frequently eaten poisonous mushroom in North America, often mistaken for edible species such as Lepiota procera and L. rhacodes.
False parasols have a white cap with white to light brown dots, and their gills are white. They are easily identifiable by their lack of the snakeskin pattern on the stem that is present on parasol mushrooms. While the parasol mushroom bruises reddish-brown when cut or squeezed, the false parasol's flesh does not change colour.
The false parasol mushroom is toxic and can cause severe gastrointestinal problems, including vomiting and diarrhea. It is important to distinguish it from edible species to avoid accidental poisoning.
False parasols are prolific and widespread, growing in meadows, lawns, and parks across North America, particularly in the eastern regions and California. They favour human-inhabited areas, such as mowed lawns, open pastures, meadows, and landscapes.
To identify false parasols, look for their distinctive white cap with light brown dots and white gills. Remember, they lack the snakeskin pattern on the stem and do not bruise when cut or squeezed, setting them apart from other similar-looking mushrooms.
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They don't change colour when bruised, unlike other parasols
False parasol mushrooms, or Chlorophyllum molybdites, are commonly found in meadows, lawns, and parks across eastern North America, as well as in temperate and subtropical regions worldwide. They are known for their white caps with light brown dots and thick, white stems lacking the snakeskin pattern typically seen on parasol mushrooms.
While false parasol mushrooms are easily mistaken for edible varieties, they are, in fact, toxic and responsible for numerous mushroom poisonings. The key to distinguishing them from other parasols lies in their gills and their response to bruising. Unlike other parasols, such as the Shaggy Parasol or Macrolepiota procera, the flesh of false parasols does not change colour when bruised or cut.
True parasol mushrooms are known to bruise and change colour when disturbed. For example, the Shaggy Parasol, a variant of the parasol mushroom, has a thick, bulbous stem that blushes reddish when bruised or cut. Similarly, the Macrolepiota procera from the Philippines exhibits reddish-brown tints when fresh, and these colours appear naturally as the mushroom ages.
In contrast, the false parasol mushroom's flesh remains unchanged when cut or squeezed. This distinction is crucial for identification and safety, as consuming false parasols can lead to severe gastrointestinal distress, including vomiting, diarrhoea, and colic within a few hours of ingestion. Therefore, it is essential to accurately identify mushrooms before consumption and avoid those that cannot be properly recognised.
It is worth noting that while false parasols are toxic, some people still choose to consume them after proper preparation. Cooking methods such as parboiling and decanting the liquid before cooking can make these mushrooms edible for some individuals. However, it is always recommended to exercise caution and consult expert sources or poison control for guidance on mushroom identification and consumption.
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False parasols are often confused with edible mushrooms
False parasol mushrooms (Chlorophyllum molybdites) are often confused with edible mushrooms, which can lead to accidental poisoning. This is because they closely resemble several popular edible mushroom species, such as Lepiota procera and L. rhacodes. False parasols are also known as Green-Spored Parasols, as they have green-tinged gills, and can be distinguished by this feature from other parasol mushrooms.
Parasol mushrooms, including the Shaggy Parasol variety, are considered edible and tasty, with a strong mushroom flavour. They are also larger than false parasols, with a thicker, stockier appearance, and can be identified by the snakeskin pattern on their stems. When bruised or cut, the stems of parasol mushrooms may turn reddish-brown, but they do not change colour to yellow or reddish-pink/orange like some other mushrooms.
False parasols are one of the most common mushrooms found on lawns and pastures throughout North America, except in the Pacific Northwest. They thrive in human-inhabited areas, such as lawns, open pastures, meadows, and landscapes. They typically appear in late summer and autumn after heavy rains, but can also be found from April to November in warmer climates.
To avoid confusion with edible mushrooms, it is important to learn the key identifying features of false parasols. Their flesh is thick and firm, turning soft with age, and they lack the snakeskin pattern on their stems. Additionally, false parasols are smaller in size, typically around 7 cm or less in diameter, while edible parasol mushrooms are usually at least 12 cm in diameter.
It is crucial to correctly identify mushrooms before consumption to prevent accidental poisoning. While false parasol poisoning may not result in death, it can cause severe gastrointestinal distress, including vomiting, diarrhoea, and colic.
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Frequently asked questions
No, false parasol mushrooms do not bruise. However, they are toxic and should not be eaten.
False parasol mushrooms are severely poisonous and can cause gastrointestinal distress, including vomiting and diarrhea. If you think you have eaten one, call poison control immediately.
False parasol mushrooms are large and widespread, growing in meadows, lawns, and parks across North America. They are white with light brown dots on the cap and lack the "snakeskin" pattern on the stem that true parasol mushrooms have. They are also known as Chlorophyllum molybdites, Green-Spored Parasols, Lepiota molybdites, Fairy Ring Mushrooms, Yard Mushrooms, and Green Gill.

























