
Slippery jack mushrooms, scientifically known as Suillus luteus, are a type of fungus characterised by their brown, slimy caps. They are commonly found in pine forests across Europe, North America, South America, Australia, Africa, and Asia. Slippery jacks are a popular edible mushroom species known for their buttery flavour and texture, making them a versatile ingredient in various recipes, including soups, stews, sauces, and fried dishes. While they are safe to consume, the slimy skin on the cap can cause adverse reactions in some individuals, so it is recommended to remove it before cooking.
| Characteristics | Values |
|---|---|
| Common name | Slippery Jack, Sticky Bun |
| Scientific name | Suillus luteus |
| Genus | Suillus |
| Family | Boletaceae |
| Type | Bolete |
| Habitat | Pine forests, plantations, and pine trees |
| Location | Europe, North America, South America, Australia, South Korea, South Africa, New Zealand, Ecuador, Chile, Brazil, Argentina, Uruguay, Paraguay, South Africa, Burundi, Eastern Europe |
| Seasonality | Spring, Summer, Autumn |
| Appearance | Brown, yellow, orange-yellow, light yellow, dark brown, purple/brown, rusty brown, white, pale yellow |
| Size | 5-12 cm long, 2-3 cm diameter |
| Features | Slimy cap, tubes on underside of cap, pores, skirt, ring around the stalk, veil, spores |
| Edibility | Edible, used in soups, stews, sauces, eggs, frying, pickling, drying |
| Nutrition | Protein, carbohydrates, fat, ash, fibre, vitamins B and D, potassium, phosphorus, selenium |
| Allergens | May cause allergic reactions or digestive issues due to slimy skin |
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What You'll Learn
- Slippery jacks are a type of fungus, scientifically known as Suillus luteus
- They are edible mushrooms with a buttery flavour and texture
- Slippery jacks are usually found in pine forests, particularly in the northern latitudes
- They are not native to North America but are widespread
- Slippery jacks are sold and used in recipes around the world

Slippery jacks are a type of fungus, scientifically known as Suillus luteus
Slippery jacks, scientifically known as Suillus luteus, are a type of fungus. They are commonly found in pine forests and plantations worldwide, including Europe, North America, South America, Australia, South Korea, and South Africa. Slippery jacks are known for their distinctive appearance, particularly their brown or yellow caps, which become slimy when wet. They are also characterised by their whitish or pale yellow stems, which are covered in small brown spots.
Suillus luteus is a type of bolete fungus, which is a mushroom that has tubes on the underside of its cap instead of gills. These tubes function to release spores when the mushroom matures. Slippery jacks are often recognised by their yellow pores, which are covered by a membrane when young. They typically grow in clusters and are found near paths, especially after cool, wet weather.
Slippery jacks are edible mushrooms that are prized for their buttery flavour and texture. They are used in various recipes, including soups, stews, sauces, and fried dishes. However, it is recommended to cook slippery jacks before consuming them as they may cause allergic reactions or digestive problems in some individuals. The slimy skin on the cap, in particular, can be difficult to digest, so it is often removed or soaked before cooking.
Slippery jacks have a strong commercial aspect due to their abundance and flavour. They are harvested in countries like Chile and Ecuador, where they grow in large quantities, and are even sought after by foragers in Australia. Slippery jacks are also one of the few bolete species to have a 'skirt', or ring around their stalks, which is a distinctive feature that helps identify them.
Overall, slippery jacks, or Suillus luteus, are a type of fungus that is widely distributed, edible, and valued for their culinary uses. They are an important species in the ecosystems they inhabit and have become a significant component of the commercial mushroom industry in several countries.
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They are edible mushrooms with a buttery flavour and texture
Slippery jack mushrooms, or Suillus luteus, are edible mushrooms with a buttery flavour and texture. They are commonly found in Europe and North America, as well as in parts of South America, Africa, Australia, New Zealand, and Ecuador. Slippery jacks thrive in coniferous forests and pine plantations, often growing in clusters near paths. They are characterised by their brown, slimy caps and yellow pores, with stalks that are usually white and covered in a slimy substance. While they are edible, it is recommended to remove the slimy skin on the cap before consumption as it can cause adverse reactions in some individuals.
Slippery jacks are a popular ingredient in many recipes due to their buttery flavour and texture. They are commonly used in soups, stews, sauces, and fried dishes. In some places, such as Ecuador, the abundant growth of slippery jacks has led to the establishment and maintenance of pine plantations for harvesting purposes. The mushrooms are also commercially harvested in Chile and exported to Italy.
The mushrooms typically grow in late summer and autumn, fruiting after periods of wet weather. They can be identified by their distinctive features, such as the brown to purple-brown cap that is slimy when wet and more rusty brown when dry. The underside of the cap has pores that are round, tightly packed and lemon yellow to dull yellow in colour. The stalk is off-white to yellow, covered in small brown granular spots, and can grow up to 10 cm tall and 3 cm thick.
When foraging for slippery jack mushrooms, it is important to do your research and properly identify the mushrooms before consumption. While they are edible, there are other similar-looking mushrooms that may be inedible or poisonous. Additionally, it is recommended to store slippery jacks in a basket or paper sack, as they can spoil quickly and are not suitable for drying due to their high water content.
Overall, slippery jack mushrooms are a delicious and versatile wild edible mushroom that can be found in many parts of the world. With their buttery flavour and texture, they are a popular ingredient in various dishes and are sought after by foragers and chefs alike.
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Slippery jacks are usually found in pine forests, particularly in the northern latitudes
Slippery jacks, or Suillus luteus, are a type of bolete fungus. They are commonly found in pine forests, particularly in the northern latitudes. This includes the coastal and mountainous pine forests of Europe and North America. They are also found in the Southern Hemisphere, in South America, Africa, Australia, and New Zealand. In Australia, they are typically found in the southwest and southeast of the country, particularly in areas with high rainfall. They are often found near paths in late summer and autumn, and they fruit in spring, summer, and autumn, especially after wet weather.
The slippery jack is a popular edible mushroom species known for its buttery flavor and texture. They are commonly found in clusters and are recognized by their yellow to orange-yellow caps and yellow pores. The underside of the cap has tubes instead of gills, which release spores when mature. The stem is usually white and covered with a slimy substance. The cap is brown and slimy in wet conditions, and the mushroom can range in color from light yellow to dark brown.
Slippery jacks have a strong commercial presence, particularly in Chile, where they are harvested for import to Italy. They are also commonly foraged in Australia, where people flock to pine plantations to pick them, especially in the autumn. In Ecuador, slippery jacks are so abundant that pine plantations are established and maintained for the purpose of harvesting them.
Slippery jacks form a symbiotic relationship with living pine trees, enveloping their roots with fungal tissue. This relationship is known as ectomycorrhizal. They are one of the few bolete species with a "skirt," or ring around the stalk. While they are generally edible, some people may experience allergic reactions or digestive problems from consuming the slimy skin, so it is often recommended to remove it before cooking.
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They are not native to North America but are widespread
Slippery jack mushrooms, also known as Suillus luteus, are not native to North America but have become widespread across the continent. They were first introduced to the state of New York in 1887, and DNA studies indicate that they were brought over by human activity. Slippery jacks are now commonly found in the northeast US, including Iowa, Oregon, and other parts of the Pacific Northwest.
Outside of North America, slippery jacks are native to Europe and can be found in Eastern Europe and the United Kingdom. They are also widespread in the Southern Hemisphere, including South America, Africa, Australia, New Zealand, and Patagonia. In Australia, they are commonly found in the states of Victoria, Queensland, Tasmania, and southwestern and southeastern regions. They are often found in pine plantations, particularly in the autumn months, and are a popular foraging mushroom for many people, including Polish foragers seeking a taste of home.
In South America, slippery jacks are prevalent in Ecuador, Chile, and southern Brazil. They are often found in Pinus radiata plantations, where they produce an abundance of mushrooms year-round. In Ecuador, the harvest of slippery jacks is a significant reason for the establishment and maintenance of pine plantations. Slippery jacks have also been reported in other parts of the world, including South Korea, South Africa, and Burundi, where they are sold to Europeans.
While slippery jacks are not native to North America, they have successfully spread across the continent and established themselves in various habitats. Their ability to thrive in coniferous forests and pine plantations has contributed to their widespread presence, and they continue to be a popular mushroom for foraging and culinary purposes in many regions.
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Slippery jacks are sold and used in recipes around the world
Slippery jacks, also known as Suillus luteus, are a type of bolete mushroom that is commonly found in Europe and North America. They have also spread to other parts of the world, including Central and South America, Australia, South Korea, and South Africa. With their buttery flavour and texture, slippery jacks are a popular ingredient in recipes around the globe. They are often used in soups, stews, sauces, and fried dishes. In some places, such as Ecuador and Chile, slippery jacks are commercially harvested and exported to other countries, contributing to a strong commercial aspect of these mushrooms.
In Australia, slippery jacks are a popular forage item, especially in pine plantations during the autumn season. Foragers, including Polish expatriates who seek a taste of their homeland, flock to places like Belanglo State Forest in southeastern Australia to pick these mushrooms. Slippery jacks are also commonly found in the Falkland Islands, where they grow in windbreaks and gardens. In addition, they are one of the few bolete species with a "skirt," a distinctive feature that makes them stand out from other mushrooms.
While slippery jacks are generally safe to consume, it is important to properly identify them before cooking and eating. Some people may experience allergic reactions or digestive problems from the slimy skin of the mushroom, so it is often recommended to remove or peel it before preparation. Slippery jacks can be fried, cooked in stews and soups, or pickled. However, they are not suitable for drying due to their high water content.
Slippery jacks are known by different names in various parts of the world. In English-speaking countries, they are commonly referred to as slippery jacks or sticky buns due to their brown, slimy caps. In Burundi, they are sold to Europeans as cepes, while in other parts of the world, they are simply enjoyed as wild edible mushrooms, prized for their taste and nutritional value.
Overall, slippery jacks are a versatile and sought-after ingredient in recipes worldwide. Their commercial value, unique characteristics, and culinary uses have contributed to their popularity and presence in global cuisine.
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Frequently asked questions
Slippery jack mushrooms, also known as sticky buns, are a type of fungus, scientifically called Suillus luteus. They are characterized by their brown caps, which become slimy when wet.
Slippery jacks are commonly found in pine forests and plantations across Europe, North America, South America, Australia, South Korea, and South Africa. They thrive in cool, wet weather and are often found near paths in late summer and autumn.
Yes, slippery jack mushrooms are edible and considered a delicacy in many parts of the world. They are known for their buttery flavor and texture, making them a versatile ingredient in soups, stews, sauces, and other recipes.
Slippery jacks have distinct features that make them relatively easy to identify. They have a slimy brown cap, a whitish or pale yellow stem covered in small brown spots, and a sponge-like underside that is off-white to yellow. They typically grow in clusters and are found near pine trees.
When preparing slippery jacks, it is recommended to remove the slimy skin from the cap as it can cause digestive issues for some people. The mushrooms can be peeled, pickled, or cooked in various ways, such as frying, stewing, or adding to soups. However, they are not suitable for drying due to their high water content.
























