The name of this mushroom is derived from its slippery or slimy cap surface. It belongs to the bolete family, and in Latvia, all species of this genus can be used as food, although some are protected due to their rarity. Mushrooms of the bolete family form mycorrhizal associations with conifers, occasionally with broad-leaved trees.

Species of slippery jack mushrooms found in Latvia:

● Light Slippery Jack

● Cow Slippery Jack

● Grainy Slippery Jack

● Slimy Slippery Jack

● Common Slippery Jack

● Pine Slippery Jack

● Bog Slippery Jack

● Golden Slippery Jack

● Boot-Like Slippery Jack (its presence in Latvia is not reliably proven)

Edible, can be fried without prior boiling, suitable for pickling. The cap skin is easily removable. The first crop of slippery jack mushrooms appears at the beginning of summer - in June. The mushroom season lasts for two to three weeks. The next season is at the end of July and the beginning of September. The massive 'invasion' of slippery jack mushrooms begins in August when they receive enough sunlight.

To distinguish true slippery jack mushrooms from inedible ones, pay attention to their smell. The mushroom should not have an unpleasant odor. If it smells like fish or vinegar, it should not be eaten. 'False' slippery jack mushrooms have a brown cap and a dark stem. The flesh is soft and easily bendable. When touched, the mushrooms are more watery, and the slime is slimy and brown in color.

If you have doubts about a specific mushroom while foraging, it is better not to take the risk and leave it behind.

Interesting Facts

Slippery jack mushrooms are mushrooms that synthesize the highest amount of vitamin D. They play a crucial role in the production of this essential substance, which is vital for bone health and immune system function in humans.

Slippery jack mushrooms grow towards the light. If you observe their stems, you will notice that they are never straight - the mushroom is always leaning to the side. This peculiar characteristic may be related to the mushrooms seeking sunlight and growing in its direction to optimize photosynthesis and overall growth.