About Lactarius kauffmanii Hesler & A.H.Sm.
The cap of Lactarius kauffmanii ranges in color from tan to grayish brown, and measures 4 to 15 centimeters in diameter. Its color deepens to brown as the mushroom ages. The cap shape is convex when young, becoming flat with age, and sometimes becomes depressed at the center. The gills are pale to pinkish in color, and attach to the stipe in an adnate to subdecurrent pattern. The stipe is white, cream, or tan when young, and changes to ochre or orange as the mushroom matures. The spore print of this species is white to creamy. When cut, the mushroom produces large amounts of milky white latex, which leaves behind orangish tan stains. The taste of Lactarius kauffmanii is acrid. This species forms mycorrhizal relationships. It grows beneath hemlock and fir trees, and may also associate with other types of conifers. It can be found growing in forests.