11 Common Mushrooms Found in Alaska! (2025)
What kind of mushroom did I find in Alaska?
If you spend time outside, you’ve probably asked this question at least once. Mushrooms are incredibly common in Alaska, and they come in all shapes, sizes, and colors.
Believe it or not, there are THOUSANDS of different types of mushrooms that live in Alaska. Since it would be nearly impossible to write about them all, I focused on the most common types that are seen.
IMPORTANT: You should NEVER eat a mushroom you find. There are many poisonous types, and some species will kill you. So stay safe, and don’t eat any wild mushrooms unless you are with a mycologist (mushroom expert)!
11 COMMON MUSHROOMS in Alaska:
#1. Turkey-tail Mushroom
- Trametes versicolor
Identifying Characteristics:
- Caps are up to 8 cm (3 in) long and 5 cm (2 in) wide.
- Rings of different colors decorate the tops, ranging from black to shades of brown and white.
- They often grow in a stacked pattern, which makes them look like roof tiles.
This species is one of the most common mushrooms in Alaska!
Turkey-tail typically grows on logs of deciduous trees. It’s found in mature forests where dead trees on the forest floor make a perfect environment for this fungus.
This multicolored fungus is easy to spot thanks to the concentric rings of different colors on its caps. The growing pattern of Turkey-tail is also recognizable by the way it grows in a stacked pattern that looks like roofing tiles.
Like many mushrooms, Turkey-tail is used in Eastern medicine and as an herbal supplement. However, wild specimens should NOT be consumed or handled, and supplements containing this mushroom are not FDA-approved.
#2. Fly Agaric
- Amanita muscaria
Identifying Characteristics:
- Caps are 8–20 cm (3–8 in) in diameter.
- The stalks are 5–20 cm (2–8 in) tall.
- These mushrooms have the typical looks of a “toadstool” with a bright white stalk and red, white-spotted cap.
I think this is the CUTEST mushroom in Alaska! 🙂
Fly Agaric looks just like the mushrooms found in Mario video games.
These mushrooms are considered toadstools, which are usually poisonous to humans. Fly Agaric is no exception. This fungus can cause hallucinations, low blood pressure, nausea, loss of balance, and in rare cases, death. If you ingest it, you should seek medical treatment immediately.
Luckily, Fly Agaric is a very conspicuous fungus in its fully-grown form. However, young mushrooms can be mistaken for other edible types, so you should steer clear of eating any wild mushrooms.
#3. Pear-shaped Puffball
- Apioperdon pyriforme
Identifying Characteristics:
- The cap portion is 1.5-4.5 cm (0.6-1.8 in) wide by 2-4.5 cm (0.8-1.8 in) tall.
- Their coloring is off-white with brown spots that are dense toward the middle of the cap and spread out at the edges.
- Most specimens are pear-shaped, but they are often spherical as well. They grow in clusters of 4-10 caps.
Look for these mushrooms in Alaska on rotting logs.
Pear-shaped Puffballs are commonly found during their long fruiting season, which lasts from July to November. They are nonpoisonous.
However, Pear-shaped Puffballs look similar to several dangerous species of poisonous mushrooms. For example, a lookalike called the Earthball mushroom can cause gastrointestinal distress, fever, and eye infections.
It’s better to purchase Pear-shaped Puffballs from an expert or forage with someone who knows what they’re doing. If not, you may end up sick.
#4. Shaggy Mane
- Coprinus comatus
Identifying Characteristics:
- The caps are 4–8 cm (1.6–3.1 in) wide and 6–20 cm (2.3–8 in) tall.
- Their coloring is white when they first emerge, slowly turning black as their scales lift.
- These mushrooms grow directly from the ground as single caps or clusters.
It’s easy to see how Shaggy Mane Mushrooms in Alaska got their name!
These tall, slender mushrooms have distinctive scales that make them look like they’re covered in shaggy hair. They often grow in suburban yards or fields straight from the ground.
Shaggy Manes definitely have some “yuck” factors. They’re called Ink Caps because their black gills liquefy and leak down the mushroom to release its spores. Additionally, the entire mushroom will “auto-decay,” digesting itself into a dark liquid within hours of being picked.
Shaggy Manes look very similar to poisonous mushrooms that are found in Alaska. Leave these mushrooms where you found them, and never eat them!
#5. Witch’s Butter
- Tremella mesenterica
Identifying Characteristics:
- Fruiting bodies can be up to 7.5 cm (3 in) in diameter.
- The shape is irregular, gelatinous, and brain-like.
- This fungus is typically bright lemon-yellow.
This is one of the WEIRDEST mushrooms in Alaska!
Witch’s Butter, which gets its name from its unusual shape and color, completely differs from what most people picture in a mushroom. It has an irregular, ridged appearance that looks like brains and a jelly-like texture that trembles and vibrates if disturbed. Additionally, its coloring is bright yellow, unlike most mushrooms that blend in with their environment.
If the appearance of Witch’s Butter wasn’t strange enough, it also has fascinating properties that set it apart. During dry weather, this fungus dries and shrivels into a leathery mass. Then, when it rains, it fully revives back into its original state!
Look for this strange fungus on dead tree limbs that are still attached to trees or recently fallen branches. It will grow on any deciduous tree but is most prevalent on red alder.
#6. Mica Cap
- Coprinellus micaceus
Identifying Characteristics:
- The bell-shaped caps are 1–2.5 cm (.5–1 in) in diameter when new and expand up to 5 cm (2 in) as they open.
- These mushrooms grow in dense clusters of bell-shaped caps with long, thin stems. The caps have grooves that run vertically, giving them the appearance of a head of straight hair.
- Their coloring is grayish brown.
This unassuming mushroom has a creepy talent – it can self-destruct! Mica Cap autodigests within a few hours of being picked, meaning its flesh turns from a spongy white structure into an inky black liquid. Yuck!
Mica Cap is usually found in clusters at the base of deciduous trees in mature forests. This mushroom’s less-than-appetizing qualities are just one reason I recommend never eating wild mushrooms. Additionally, there’s a high likelihood of ingesting a poisonous mushroom by mistake.
If you see Mica Cap in the wild, it’s best to take a picture of the fascinating clusters and then leave it be. After all, if you pick it, you’re likely to be covered in gross black goo!
#7. Common Puffball
- Lycoperdon perlatum
Identifying Characteristics:
- Mature specimens are 1.5-6 cm (0.6 to 2.3 in) wide by 3-10 cm (1-4 in) tall.
- Their coloring is white to off-white, with spines and warts that are varying shades of brown.
- The shape varies from pear-shaped to spherical with a wide stalk.
It’s easy to find Common Puffball Mushrooms in Alaska.
These distinctive fungi grow in gardens, yards, roadsides, and forest clearings. They’re easy to find because of their large size and bright white coloring. Common Puffballs also have an unusual covering of spiky warts on their surface, setting them apart from other types of puffballs.
Even though these mushrooms are considered nonpoisonous, it’s important to use caution when handling wild mushrooms. You shouldn’t eat any mushroom that hasn’t been identified by an expert because of the risk of misidentification. For example, the Common Puffball can easily be confused with immature Amanita mushrooms, which are poisonous and sometimes even deadly.
In addition, spores contained in the Common Puffball’s warts are released with handling. These spores can cause severe lung inflammation, resulting in cough, wheezing, or trouble breathing. Dogs are particularly susceptible to this symptom, so be careful not to let your pet play near Common Puffballs.
#8. Dyer’s Polypore
- Phaeolus schweinitzii
Identifying Characteristics:
- Caps can grow up to 25 cm (10 in) across.
- Their coloring varies by specimen: yellow, green, orange, brown, and red are all common. Usually, concentric rings of different colors decorate the tops.
- This mushroom grows as a stack of irregular flat disks.
Look for this mushroom in Alaska near conifer trees.
Even though it’s a tree pathogen, Dyer’s Polypore often looks like it’s sprouting right out of the ground. This is because it often grows from the root system of a tree instead of its bark. It sort of looks like a stack of badly made pancakes. 🙂
Dyer’s Polypore gets its name because this mushroom is an excellent source of natural dyes! Its coloring varies significantly by the specimen, and it can be used to create green, yellow, gold, or brown dyes.
Although it’s useful as a dye source, this mushroom should never be eaten. Use caution when handling these fungi to avoid eye and skin irritation.
#9. Artist’s Bracket
- Ganoderma applanatum
Identifying Characteristics:
- Caps can be 3–30 cm (1-12 in) wide × 5–50 cm (2-20 in) long and up to 10 cm (4 in) thick.
- New specimens are white but quickly turn a dark reddish-brown as they mature.
- Their shape is similar to a fan, and these mushrooms grow in a shelf-like formation individually or in groups.
This is one of the largest mushrooms in Alaska!
Artist’s Bracket caps are hard to miss, as they grow directly out of tree trunks and are too large to overlook. They’re tough and woody, and the surface of this mushroom often feels like leather.
Artist’s Bracket gets its name from a peculiar property of its white underside. You can scratch designs and pictures into their surface, and the picture remains as the mushroom dries. Here’s an example!

#10. King Bolete
- Boletus edulis
- Tannish-brown caps that look a bit like hamburger buns.
- Their large, whitish stems are sometimes club-shaped or bulging in the center, with white flesh inside and a net-like pattern near the top.
- Mature mushrooms may weigh over two pounds.
Foragers and chefs revere these kings among mushrooms for their delicious flavor. You may have had them before; they’re usually called porcini mushrooms in cooking.
Another name, penny buns, refers to their bun-like appearance and unique sourdough aroma. Along with their delicious flavor, the size of mature King Boletes makes them quite a meal.
They regularly weigh over two pounds, and one record-breaking mushroom found in Scotland in 1995 weighed in at over 7 lbs! If you want to find these mushrooms in Alaska, you’ll have to get out in the woods. King Boletes are a forest species, often growing in groups of two or three beneath conifer or deciduous trees. They form beneficial relationships with these trees and have even been shown to help saplings survive unfavorable conditions.
Be extremely careful when looking for these mushrooms: King Boletes have some toxic lookalikes like Bitter Boletes (Tylopilus felleus).
#11. Hoof Fungus
- Fomes fomentarius
- The smooth caps are shaped like a horse’s hoof and vary from silver-gray to almost black with a yellowish, cream, or ochre edge.
- Their undersides are a light gray-brown with tiny pores, and the flesh is cinnamon-brown, corky, and fibrous.
This fungus grows on dead and dying hardwood trees.
It infects the trees through broken bark and causes white rot.
Hoof Fungus is sometimes called Tinder Fungus because is was used to create a spongy material called amadou. This material is an ideal tinder for catching sparks from striking flint and steel to light a fire. The 5,000-year-old mummy Ötzi the Iceman carried four pieces of Hoof Fungus. Scientists believed they were probably for tinder.
Amadou from these mushrooms also has many other uses, mostly as a durable textile to make hats or other accessories. Today, anglers use patches made from amadou to dry their fishing flies.
Herbalists also use Hoof Fungus medicinally, and some research has indicated it has antibacterial, anti-diabetic, anti-inflammatory, and antioxidant activities. However, most foragers won’t find it appetizing. Hoof Fungus has a slightly fruity smell and an acrid taste.
Learn about other awesome things in Alaska!
Which type of mushroom is your favorite?
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