Yellow swamp brittlegillRussula claroflava

The yellow swamp brittlegill (Russula claroflava) — an excellent edible brittlegill of damp birch and spruce-birch forests with a striking bright yellow, lemon-yellow, ochre cap. The Latin epithet claroflava means "bright yellow" (clarus — "bright", flava — "yellow") — a perfect match for its color. Cap 5-10 cm across, convex when young, flattened with age with a slightly depressed center, a rich lemon-yellow, darker in the center toward ochre-yellow.

An excellent edible mushroom of outstanding culinary quality — the flesh is tender, sweetish, not bitter, with a pleasant smell. No preliminary boiling required. Foragers value it on a par with the best brittlegills — for frying, pickling, drying. Especially tasty when young with a rich yellow color.

Diagnostic features of Russula claroflava: Intensely yellow, lemon-yellow, ochre-yellow cap (without the grayish tinge typical of R. ochroleuca!) Cap skin peels easily to 2/3 of the cap Flesh quickly turns gray to gray-black when damaged — a characteristic reaction of the species Spore print yellow-ochre Taste mild, sweetish, not bitter Smell faint, pleasant, fruity Grows in damp birch and spruce-birch forests, often on sphagnum

The main risk is confusing it with R. ochroleuca (ochre brittlegill, conditionally edible) — which has a grayish or mustard-yellow tone and an unpleasant bitterish taste. The key difference: R. claroflava is pure yellow, and its flesh turns gray when damaged; R. ochroleuca has a grayish tinge, and its flesh does not turn gray.

In Ukraine Russula claroflava is common in damp birch and spruce-birch forests: the Carpathians, Prykarpattia, Polissia (especially abundant in Polissia birch woods), the forest-steppe. Season July — October.