MycoNote

This English version was machine-translated from Ukrainian, so a few things may read a little off.

Suillus placidus (Suillus placidus)
Photo: Karelj · CC0 · source
Edible

Suillus placidus

Under review

Updated October 3, 2026

Passport

Edibility
Edible
Season
Jul — Oct
Hymenophore
Pored
Cap color
White
Size
Medium (5–15 cm)
Smell
Pleasant
Reviewed
Under review

Quick answers

Where to look?

Conifer forest

When does it appear?

Jul — Oct

Active months: July, August, September, October.

How to recognize it? Three signs

  • Cap color: White, Cream
  • Cap shape: Convex
  • Smell: Pleasant

Fruiting season

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

July – October

Description

Suillus placidus is an elegant, pale-skinned member of the Suillus genus that stands out from its brown relatives with the delicate milky-white or cream color of its cap. This mushroom is quite picky about its neighbors: it forms mycorrhiza exclusively with five-needle pines, above all eastern white pine and stone pines, so in Ukraine it occurs mostly where these ornamental trees have been planted, in parks, botanical gardens and forest plantations.

Because of this attachment to introduced trees, Suillus placidus is not a common mushroom of our forests and is known mainly to attentive foragers who know where the "exotic" pines grow. It fruits in the second half of summer and in fall, peaking in August–September. Once you find one partner tree, you can often gather a whole group of these neat, pale mushrooms beneath it.

In terms of edibility, Suillus placidus is an edible mushroom with a mild, pleasant flavor. Its tender white flesh is good for frying, pickling and soups, although in the kitchen it falls a little short of the slippery jack. As with all Suillus, it's best to peel the slimy skin off the cap before cooking. Young, firm specimens are the tastiest, because with age the flesh quickly turns watery.

Cap

The cap of Suillus placidus is small, usually 3 to 10 centimeters across. When young it is convex and hemispherical, later opening out to cushion-shaped and almost flat. The cap surface is smooth and slimy, especially in wet weather, as if covered with a thin layer of glaze. The coloring is very pale and characteristic of the species: milky white, ivory or pale cream in young mushrooms, possibly taking on yellowish or ocher tones with age. The slimy skin peels easily off the cap.

Hymenophore

Under the cap is a layer of tubes with small pores. In young mushrooms they are whitish or pale yellow, turning yellowish and light ocher as they mature. A characteristic feature of the species is small reddish-brown glandular dots, often visible on the pore surface, and in wet weather droplets of liquid may appear on the young pore surface, leaving rusty spots as they dry. The tubes are short and attached to the stem.

Stem

The stem of Suillus placidus is cylindrical, 3 to 8 centimeters tall, relatively thin and solid. Unlike many other Suillus species, it has no ring. The stem is whitish or pale yellow, and its whole surface is covered with characteristic small glandular dots that darken with age to reddish brown or almost purple. These dots, together with the pale cap and growth under five-needle pines, are reliable features of the species. There is no volva.

Flesh

The flesh of Suillus placidus is tender and soft, white or slightly cream, sometimes with a pale pink tinge in the stem. In the air it barely changes, or very faintly turns pink or brownish when cut. The taste of the flesh is mild and pleasant, with no bitterness. As with all Suillus, it quickly soaks up moisture and softens, so for the table it's better to choose young, springy mushrooms.

Smell

The smell of Suillus placidus is weak, mild and pleasantly mushroomy, with no sharp or unpleasant notes. The aroma carries no warning signs, so for identification go by the pale slimy cap, the glandular dots on the stem and the essential presence of five-needle pines nearby.

›Scientific synonyms (1)

Boletus placidus

Lookalikes

Mushrooms of the same genus and habitat — to study side by side and never mix up.

Related reading

Frequently asked questions

Is Suillus placidus edible or poisonous?
Suillus placidus is edible. Before eating any wild mushroom, always double-check current information in reliable sources and consult an expert.
Does Suillus placidus have gills or pores?
The spore-bearing surface (hymenophore) of Suillus placidus: pored.
What does the cap of Suillus placidus look like?
The cap of Suillus placidus is small, usually 3 to 10 centimeters across. When young it is convex and hemispherical, later opening out to cushion-shaped and almost flat.
What does the stem of Suillus placidus look like?
The stem of Suillus placidus is cylindrical, 3 to 8 centimeters tall, relatively thin and solid. Unlike many other Suillus species, it has no ring.
What do Suillus placidus smell and taste like?
The smell of Suillus placidus is weak, mild and pleasantly mushroomy, with no sharp or unpleasant notes. Taste: mild.
Where does Suillus placidus grow?
Typical habitats: Conifer forest.
Which trees does Suillus placidus grow under?
Suillus placidus usually grows near: Pine.
When should you pick Suillus placidus?
It fruits in: July, August, September, October.
What can Suillus placidus be confused with?
Suillus placidus can be mistaken for: Suillus clintonianus, Weeping bolete, Slippery jack. Study the distinguishing features carefully — detailed comparisons are in the “Lookalikes” section.
How do you cook Suillus placidus?
Suillus placidus can be fried, boiled, pickled and dried. Before cooking, it's recommended to boil it for 10–15 minutes and drain the water.
Can you dry Suillus placidus?
Yes, Suillus placidus is well suited to drying and freezing. Dried mushrooms keep their aroma and work well in soups, sauces and fillings.
What is the scientific name of Suillus placidus?
The Latin name is Suillus placidus. It belongs to the genus Suillus, family Suillaceae.

Sources

  • [1]Вікіпедія (українська)
  • [2]Атлас грибів України, Зеров Д.К. (1979)
  • [3]MycoBank Database
  • [4]Index Fungorum
  • [5]GBIF
  • [6]iNaturalist Ukraine