The folk name “mokhovyk” (literally “moss mushroom”) covers at least three different mushrooms. The first are the true mokhovyks of the genus Xerocomus and related genera: suede bolete, Xerocomus ferrugineus and their relatives. The second is the velvet bolete (Suillus variegatus), which reference books still list as the “yellow-brown mokhovyk”. The third is the bay bolete, known in the Russian-language tradition as the “chestnut mokhovyk”. Four things help you tell them apart: the cap skin, the pores, blueing when cut, and the tree nearby.
The mix-up isn't dangerous: all three are edible. But they cook and taste differently, so it helps to know exactly what you're carrying home. Below are our own finds, and each one shows what to look at.
Why one name ended up on several mushrooms
The name “mokhovyk” grew out of a simple observation: a mushroom with a dry, velvety cap often turns up among moss. More than one species fits that description, so people lumped all the similar “velvety” boletes together under it.
Scientists took a long time to sort them out, too. For many decades the bay bolete was Xerocomus badius, an official mokhovyk, and only later got its own genus, Imleria. Geneticists found Xerocomus itself to be a mixed bag and split it into several genera. The velvet bolete was described back in 1810 as Boletus variegatus, and the international fungal Red List database still gives its Ukrainian name as “yellow-brown mokhovyk”. In Russian it goes by the “bog mokhovyk” and the “sand mokhovyk”.
Hence the main trap. In Russian-language books the “chestnut mokhovyk” is the bay bolete, while on our site and in some Ukrainian sources that name belongs to a different species, Xerocomus ferrugineus. If you read about a “chestnut mokhovyk”, check the Latin name: it's the only unambiguous one.
Velvet bolete: the “mokhovyk” of the pine woods
This is the mushroom that most often throws people off, because it looks nothing like a familiar slippery jack. Its cap isn't slimy but dry, finely velvety or finely scaly, like suede, and only turns sticky in wet weather. That's why its English name is the velvet bolete, and to the touch it really does feel like a mokhovyk.
We found this one in early October 2026 in a mixed forest of pine and birch. The cover photo shows it from the side; here it is from above. Look at the cap: ochre-brown, matte, with small darker dot-like scales and pine needles lying on it. Going by these features it's most likely a velvet bolete, although we didn't examine the underside.

What sets it apart from the true mokhovyks becomes clear when you turn it over:
- Pores are small and crowded, olive-mustard, browning with age. In mokhovyks they are noticeably wider and bright yellow.
- A ring is completely absent from the stem, in young and old mushrooms alike.
- The flesh is yellowish and blues when cut, most noticeably just above the tubes.
- The tree is almost always pine, usually on poor sandy soil.
We covered this mushroom, its cap skin that doesn't peel, and its blueing in more detail in our article on the velvet bolete.
True mokhovyks: wide, angular pores
In early June 2026 we came across this bolete in an oak wood. The cap is dry, felty and orange-reddish, as if dusted. That “suede” is exactly what sets mokhovyks apart from slimy slippery jacks. We couldn't pin down the species from the photo: several mokhovyks look alike, and without a microscope they often can't be told apart.

Turn a mushroom like this over and the genus's best feature is right in front of you. The tube layer is bright lemon yellow, with large, angular pores that are easy to see with the naked eye; in Xerocomus ferrugineus they're 1–2 mm wide. Our mushroom's stem is pale, with reddish lengthwise fibers and no porcini-style net.

This mokhovyk didn't blue when cut, and that's normal. The flesh of Xerocomus ferrugineus doesn't blue, and in the suede bolete usually only the pores blue slightly while the flesh barely changes color. So no blueing doesn't make a mushroom suspicious, and blueing doesn't make one poisonous. We explain where the blue comes from in why a mokhovyk turns blue when cut, and cover the whole group in our overview what a mokhovyk is.
When all you can see is the cap
And here's a young mushroom from that June forest, shot from ground level. The cap is gray-brown and felty, the stem pale and thin. Going through the photos, we placed it among the mokhovyks. But the pores aren't in the frame, so to be honest, the species can't be identified from this photo.

It's a good lesson. From above, a mokhovyk, a velvet bolete and even a young bay bolete can look almost identical. Don't pick a mushroom until you've checked the underside of the cap and the stem.
A slippery jack posing as a mokhovyk
Another of our finds, from June 2025 at a forest edge. The caps are dry, felty and yellow-brown, with small cracks along the margin showing bright yellow flesh. At first glance, a classic “mokhovyk”.
But look closely at the stems: scraps of membrane hang from them, remnants of the veil, with brown dots lower down. The velvet bolete has no veil and no ring. The slippery jack does, and its cap is slimy in wet weather and dries matte in the heat. So we can only confidently place these among the slippery jacks (Suillus), and didn't identify the species from the photo.

Four features: how to tell them apart in a minute
Pick the mushroom, turn it over, cut it and look around. That's enough.
- Cap skin. Dry and velvety in the true mokhovyks and the velvet bolete. The bay bolete's is matte in dry weather and sticky in wet. Skin alone won't separate them, so read on.
- Pores. In mokhovyks they are wide, angular, bright yellow. In the velvet bolete they are small, crowded, olive-mustard. In the bay bolete they are cream or yellowish, turning blue-green when pressed.
- Blueing. In the velvet bolete the flesh blues above the tubes. In the bay bolete the pores and stem blue, the flesh only slightly. In mokhovyks it varies: anything from noticeable blueing of the pores to none at all.
- The tree nearby. The velvet bolete sticks to pine. Mokhovyks and the bay bolete are happy with both conifers and broadleaf trees, so if there are only oaks around, it's definitely not a velvet bolete.
One more clue is a ring, or scraps of one, on the stem. If it's there, you're looking at a slippery jack relative (Suillus), but not the velvet bolete.
What not to put in your basket as a “mokhovyk”
There are two boletes that beginners sometimes mistake for mokhovyks:
- The bitter bolete has cream pores that turn pink with age and a dark net on the stem. It tastes very bitter, and boiling doesn't remove the bitterness. A single bitter bolete can ruin a whole pan.
- The peppery bolete is small, with rusty-orange angular pores and a burning, peppery taste. It often grows under pines and birches, the same places as the velvet bolete.
If the pores are pink, orange or red, it's not a mokhovyk. Read more about the lookalikes in our article mokhovyk lookalikes.
All the true “mokhovyks” in this article are edible, but none of them is a delicacy. The velvet bolete has a modest reputation in the kitchen, and Suillus species sometimes upset the digestion of sensitive people. Cook wild mushrooms for at least 15 minutes (more on this in how long to boil mushrooms). And as always: if in doubt, leave the mushroom in the forest.
Mushrooms in this article
Frequently asked questions
Which mushroom is the folk “mokhovyk”?
First and foremost, the true mokhovyks of the genus Xerocomus and related genera, such as the suede bolete and Xerocomus ferrugineus. But the same name is used for the velvet bolete (Suillus variegatus) and, in the Russian-language tradition, for the bay bolete. What they all share is a dry, velvety cap with a tube layer underneath.
Is the velvet bolete a mokhovyk or a Suillus?
Scientifically it's a Suillus, the slippery jack genus, and it grows only with pine. It gets called a mokhovyk because of its dry, velvety cap, quite unlike the slimy cap of a slippery jack. The international fungal Red List database still gives its Ukrainian name as “yellow-brown mokhovyk”.
How do you tell a mokhovyk from a velvet bolete?
Turn the mushroom over. A mokhovyk has wide, angular, bright yellow pores, while the velvet bolete's are small, crowded and olive-mustard. The velvet bolete grows under pine, while mokhovyks also grow under broadleaf trees, oak included.
Why didn't my mokhovyk turn blue when cut?
Because not all mokhovyks blue. The flesh of Xerocomus ferrugineus doesn't change color when cut, and in the suede bolete it's mostly just the pores that blue. On its own, a lack of blueing makes a mushroom neither suspicious nor safe; you identify the species from all the features together.
Is the bay bolete a mokhovyk?
For a long time it was: scientists placed it in the genus Xerocomus, and Russian books still call it the “chestnut mokhovyk”. Now it has its own genus, Imleria. It differs from mokhovyks in its cream pores that blue when pressed and a cap that turns sticky in wet weather.
Do mokhovyks have poisonous lookalikes?
There are no deadly poisonous lookalikes, but there are unpleasant ones, and red-pored boletes such as the devil's bolete are poisonous. The bitter bolete has pinkish pores, a net on the stem and is very bitter; the peppery bolete has rusty-orange pores and a burning taste. If the pores are pink, orange or red, leave the mushroom.
Can you eat every mushroom called a mokhovyk?
Yes: mokhovyks, the velvet bolete and the bay bolete are all edible. They differ in taste: the bay bolete is the most prized, while the velvet bolete is considered mediocre. Boil wild mushrooms for at least 15 minutes, and don't take any you're not sure how to identify.
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Sources
- Zerova M. Ya., Yelin Yu. Ya., Koziakov S. M. “Mushrooms: edible, conditionally edible, inedible, poisonous” (Kyiv, Urozhai, 1979): descriptions of the velvet bolete and the bay bolete (as summarized in Ukrainian Wikipedia).
- Global Fungal Red List Initiative (database of proposals for the IUCN Red List), Suillus variegatus entry: national names, including the Ukrainian “моховик жовто-бурий” (“yellow-brown mokhovyk”).
- First Nature, pages “Suillus variegatus”, “Suillus luteus”, “Boletus subtomentosus”, “Tylopilus felleus”, “Chalciporus piperatus”: cap skin, pores, blueing, ring, partner trees, edibility.
- Kuo M., MushroomExpert, “Xerocomus ferrugineus”: pore size, flesh that doesn't blue.
- Articles “Suillus variegatus”, “Imleria badia” and “Xerocomus” in Ukrainian, Russian and English Wikipedia: folk and old names, taxonomic history of the genus.
Velvet bolete
Suede bolete
Xerocomus ferrugineus
Bay bolete
Slippery jack