Lactarius olympianus

A gorgeous western Lactarius recognized by a combination of features:

-a fairly large, bright orange cap with concentric zones of color;
-growth under mountain spruces;
-white milk that does not change color but stains the gills brownish to orangish brown;
-a stem that lacks potholes and discolors brownish when handled;
-acrid taste;
-a cap margin that is not hairy, even when young; and
-large, partially reticulate spores.