Tricholoma irinum is a species of mushroom belonging to the Tricholomataceae family. Commonly known as the "Mat-Grass Knight," it is a medium-sized, edible fungus with a rounded cap and a cylindrical or club-shaped stem. The cap of the Tricholoma irinum is typically 3 to 10 cm in diameter, initially convex but eventually flattening out as it ages. It is usually whitish to grayish-brown, and its surface is often covered in fine scales or fibrils.
The gills of Tricholoma irinum are broad, closely spaced, and typically white, turning shades of brown as the mushroom matures. The stem, measuring around 4 to 8 cm in length and 0.8 to 1.5 cm in diameter, is often the same color as the cap or slightly paler. It possesses a fragile and fibrous texture.
This mushroom species is commonly found growing in grassy areas, lawns, or meadows, often appearing in small groups or scattered. Tricholoma irinum is reported to have a mycorrhizal association with various plants, particularly grasses.
As an edible mushroom, Tricholoma irinum is considered of average culinary value. Its taste and aroma are generally mild, and it can be cooked and used in various dishes, including soups, stews, or sautés. However, caution should be exercised when consuming this species, as it bears a resemblance to other Tricholoma species, some of which are toxic. Therefore, it is recommended to consult an experienced mycologist or follow proper identification before consuming any wild-growing mushrooms, including Tricholoma irinum.
