Blue, yellow, and red mushrooms are edible fungi distributed in Northeast China. The sub entity is medium to slightly larger. The cap has a diameter of 5-12cm, is flattened and semi spherical, concave when extended, and has a variety of colors, dark purple gray, purple brown, or purple gray with a hint of green. As it ages, it often appears light green brown or green gray, with mixed colors, sticky, thin epidermis, easy to peel off from the edges, and sometimes cracked. The edges are smooth or have indistinct stripes. Mushroom flesh is white, with a light red or purple color beneath the epidermis. No odor, good taste.

Blue, yellow, and red mushrooms are edible fungi distributed in Northeast China. The sub entity is medium to slightly larger. The cap has a diameter of 5-12cm, is flattened and semi spherical, concave when extended, and has a variety of colors, dark purple gray, purple brown, or purple gray with a hint of green. As it ages, it often appears light green brown or green gray, with mixed colors, sticky, thin epidermis, easy to peel off from the edges, and sometimes cracked. The edges are smooth or have indistinct stripes. Mushroom flesh is white, with a light red or purple color beneath the epidermis. No odor, good taste.

Qingtou fungus grows in pine or coniferous forests, broad-leaved forests, or mixed forests, with a growing season in summer and autumn each year, and a high yield after rain. They all appear in pairs, and if one is found in the deep forest, another one must be found within a range of no more than one meter, with a medium to slightly larger fruiting body. The cap is initially spherical and has a protective color similar to that of green grass, making it difficult to detect. Quickly flattened into a semi spherical shape and gradually extended, with a slightly concave center that is not sticky, ranging from light green to grayish green. The skin often cracks in spots, and there are stripes on the edges when old. Mushroom meat is white. The gills are white, dense, of equal length, and have transverse veins. The mushroom stem is long, solid, or soft inside, edible, and has a delicious taste.

Russula virescens (Schaeff.) Fr. is a fungus belonging to the family Russula and genus Russula. The fruiting body grows on the ground and can reach a height of up to 10 centimeters. The flesh is crisp, perishable, and the cap is initially spherical, later it is slightly concave in the middle, and slightly rolled down around. The cap surface is light green or grayish green, with irregular copper green spots, white pleats, white and smooth than the dense handle cylinder, white when the spores are spherical, and there are small warts on the outer wall, distributed in Liaoning, Jilin, Heilongjiang, Jiangsu, Zhejiang, Fujian, Henan, Taiwan, Guangdong, Guangxi, Guizhou, Yunnan, Xizang and other places in China.

Russula sardonia, commonly known as Primrose Brittlegill, is a species of red mushroom in the family Russula, belonging to the genus Russula commonly known as Brittlegill. This fungus has a reddish purple color and is commonly found in temperate coniferous forests during summer and autumn. This fungus is inedible and, like other non edible fungi, has a spicy taste.